U.S.S. TAUTOG (SS-199) — war patrol report SS-199_TAUTOG_Part1.pdf

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1940, TATTOO was shipped by Lieutenant J. H. Willingham who started the sub on a long illustrious career. After commissioning the submarine had a short training period in Long Island Sound and then departed on a shakedown cruise which lasted from 6 September to 11 November 1940. She visited San Juan, Puerto Rico, Mobile, Alabama (home of the skipper), Savannah, Georgia, Brownsville, Texas and Annapolis, Maryland before returning to New London.

Final trials were held in early December after which TATTOO underwent a six-week overhaul at Portsmouth. After overhaul, the submarine worked out of New London, Connecticut on a ten-tube mine-laying problem and TATTOO may be considered as the founder of the mine plant doctrine.

Early in February 1941 TATTOO was suddenly ordered, along with the submarine THRESHER, to Saint Thomas in the Virgin Islands. It was a special mission and no one knew what was happening. She remained there for about six weeks operating from a Sub Base which consisted of a partial dock, two or three buildings and a gleam in the construction's eye. While in St. Thomas, TATTOO received orders to join the Atlantic Fleet at Great Culebra, P. R., in paying homage to Secretary of the Navy Frank Knox. TATTOO escorted THRESHER, who was transporting important naval personnel. After her return to Saint Thomas, TATTOO received orders early one morning to join the fleet. Off New York, TATTOO and THRESHER were detached from the fleet disposition and ordered to Newport, Rhode Island, where operations were conducted for several weeks.

Late in April 1941, TATTOO returned to New London for loading and put on six hours notice. On 1 May TAMBOOR, THRESHER and TATTOO set course for Pearl Harbor, stopping at Coco Solo and San Diego en route. The three submarines arrived at Pearl Harbor on 6 June and TATTOO operated with task forces out of Pearl Harbor, made ten-day patrols around the Hawaiian Islands and conducted such experiments as determining how long it would take for a "boat" to fuel and provision and arrive at Midway.

On 21 October TATTOO received sealed orders to patrol off Midway for 45 days with THRESHER. The sub was submerged for 15 to 16 hours per day for thirty-eight consecutive days. Most provisions ran out and the patrol was one of the hardest on personnel that TATTOO ever made. She returned to Pearl Harbor on 5 December 1941 just in time for the fireworks of 7 December. As a result of her last pre-war

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The day after Christmas 1941, TAUTOG made a tour of the Marshall Islands. The duration of this patrol was 14 days, of which 26 were spent in the patrol area. It was principally a reconnaissance patrol during which much valuable information was gathered on Kwajalein, an island later to be captured and used as a stepping stone in the advance to the Japanese Empire. This was the only patrol in the career of TAUTOG in which no shipping was claimed sunk, although a possible hit was scored on a medium sized freighter on 15 January 1942. However, TAUTOG is considered to have fulfilled her mission admirably with the personnel aboard deserving of special credit.

Her first war patrol ended on 4 February 1942, and TAUTOG went to Mare Island for a quick overhaul. On 9 April she again set a westward course. The second war patrol commenced with TAUTOG's departure from Pearl Harbor on 24 April, to be conducted in the Marshall Islands. While en route to her station, TAUTOG sighted a periscope on 26 April near Johnson Island. The Jap sub was obviously opening range preparatory to firing. The officer of the deck put the rudder hard right and called the crew to battle stations. When the stern tubes were on target one torpedo was fired. The torpedo either hit the sub or exploded directly over it which resulted in the Jap sub sinking. A Navy patrol plane flying nearby was contacted by searchlight to investigate and confirm the sinking.

Immediately after arrival in the Marshalls, TAUTOG was ordered to Truk to pick off stragglers from the Coral Sea. In the early darkness of 15 May a darkened ship was tracked for an attack. Just before reaching a firing bearing, it grew light enough to reveal the markings of a hospital ship end no attack was made, although the International Convention had been violated. If the ship really were a hospital ship its sinking would have been their own fault for not putting lights on.

On 17 May propleers of a submarine were heard and, when the Jap sub came into sight, a spread of two torpedoes scored with one hit. The sub disappeared. Ancther submarine was sighted later in the morning with the marking I-28 on her conning tower. One of two torpedoes fired disabled the Jap sub and TAUTOG generously administered the third, which hit and sank the sub.

Two steamers were sighted departing Truk on the afternoon of 22 May. A submerged sound attack was made which sent the larger of the two to the bottom. The other vessel, apparently an armed naval auxiliary, searched the area thoroughly but withdrew when she was unable to locate the sub. A pursuit of the second steamer was spoiled by aircraft in the vicinity and TAUTOG steamed to the westward.

Sighting smoke on the horizon to the south, TAUTOG closed in to track a steamer and gain a position ahead of her. A submerged attack at periscope depth sent the ship to Davy Jones' locker. This was the last action on the patrol and brought the total tonnage sunk on this patrol to 29,200 tons. The feat of sinking three Japanese submarines was never bettered during the war, and only tied once. Two of the freighters were 10,000-tonners, the largest ships sunk in the fighting

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career of TAUTOG. The patrol ended when the sub stood into Freemantle on 11 June.

On 17 July TAUTOG departed Freemantle on her third war patrol for an area off the coast of French Indo China. Hunting was not too good in this area for the sub, although she did sink a large naval auxiliary. It was too dark for a periscope attack and too light for a surface approach on the morning of 6 August when the ship came into view. Three torpedoes were fired after a sound approach set up the target. The first torpedo ripped into the ship, followed 6 seconds later by the second torpedo exploding the target. The third torpedo missed but it made little difference. An investigation of the surface revealed an oil slick about a mile wide and several miles long, with debris floating all around. It was the last evidence of the 7000-ton Jap naval auxiliary.

Return to Freemantle was made via Apo East Pass and the Makassar Straits. Forty-five days of the 56-day patrol were spent in the patrol area and TAUTOG tied up at Freemantle on 10 September 1942. A refit took place at Albany, south of Freemantle alongside USS HOLLAND, and the crew overhauled the main engines and auxiliary machinery before a period of rest and recuperation.

TAUTOG returned to Perth early in October, loaded mines and left on her fourth war patrol on 8 October, which was a combination mining and torpedo patrol. On 20 October the outline of a vessel ahead was dimly seen through the rain. A quick dive and submerged approach showed the vessel to be a diesel fishing schooner of about 75-tons. The sub made battle surface, closed the range and brought the schooner to by arching two shots across her bow. The schooner broke the Japanese colors and hoisted a signal. On closing the schooner it was found that she had a Japanese crew with four Filipinos aboard. After some encouragement, the Filipinos swam over and came aboard TAUTOG. They were used as Mess Attendants and later enlisted in the Navy.

The Japs were ordered to take to their boats, of which there were three on the forecastle, but they showed considerable reluctance to expose themselves. Three rounds of 3-inch shells fired into the stern disabled the rudder and propeller and convinced them that it was not a game of hide and seek. One boat was launched and the Japs were given water and directed to the nearest land after indicating that no one else was aboard the schooner. However, when TAUTOG opened fire to sink the schooner, several other Japs scrambled out and ten rounds fired into the hull left only the burning bow and pilot house above water.

Typhoon weather on 24, 25 and 26 October was enemy enough for TAUTOG, but the following day she took on the Japs again. A passenger-freighter was tracked until dark when TAUTOG jolted her with two torpedoes. A fire started in the after part of the ship and the bow went up into the air and the ship sank in a few minutes. The next day another ship was attacked but the hits turned out to be duds and escort vessels gave TAUTOG a thorough working over. Light globes were shattered and several small leaks developed as paint flaked off and minor damage about the sub resulted.

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Bad weather plagued TAUTOG during the patrol but a break in the wind and seas gave the sub an opportunity to plant her mines on 2 November. During the planting, several mines exploded and gave the sub a considerable jolt as water shot up in columns estimated at over 200 feet. It was just after midnight when TAUTOG completed planting all mines.

The fighting career of TAUTOG almost ended on 11 November when a torpedo sent after a passenger-freighter missed the target and alerted a clever anti-submarine escort vessel. The submarine went deep and sneaked silently away, thinking all was well because no propeller sounds were picked up. Suddenly propellers were heard through the hull and before any action could be taken, the first depth charge exploded with such violence that it felt like a physical blow. Four more explosions followed and men were bodily thrown about like dice in a dice cup. Lights broke and there were flashes from electric arcs. The concussion was so severe that all hands actually saw red. Flooding commenced and the list of damage done is too long to include in this history. TAUTOG had received a beating that few submariners had lived to tell about. It is possible that a few better Christians were found among the crew when TAUTOG arrived back at Freemantle on 21 November.

On 28 November 1942, Lieutenant Commander W. B. Sieglaff relieved Lieutenant Commander J. H. Willingham as skipper of the "Terrible T." "Captain Barney" was the second of the three skippers to fight with TAUTOG and he was to continue the record of the sub that was building a reputation for never coming back empty-handed, and always COMING BACK!

Underway from Freemantle on 15 December 1942, the "Terrible T" proceeded to her area for the fifth war patrol which was to take her to Timor, Ambon, Band and the Flores Sea, Staring by Kendari, Saleler Straits and Saleler Island. After 1941 TAUTOG never spent a Christmas in port, and Christmas of 1942 was celebrated in a new way for all aboard. An enemy passenger-cargo vessel was tracked from the night before into the morning. The target looked like a big black mass in the periscope and the bow tubes were ready to fire when a collision course was indicated, forcing TAUTOG to dive under the ship and give her Christmas greetings with the stern torpedo tubes. The Jap ship was clearly outlined in the moonlight and at 0306 the sub fired one, two and three torpedoes and listened as 63 seconds ticked off. Loud explosions made the ocean tremble and the ship's screws stopped immediately as black smoke enveloped her.

In the evening a ship which appeared to be a small freighter with escort attracted the sub and an approach was attempted. Both vessels suddenly turned toward TAUTOG and she realized who was approaching whom. The larger ship was an anti-submarine vessel with patrol craft which rounded out a team that was "out to get" the likes of TAUTOG. The "working over" which resulted made the crew glad that Christmas comes but once a year.

A sailboat was sighted on 5 January as TAUTOG was standing through Buton Passage en route to Ambon. The boat was approached with all machine guns manned and the sail was ordered lowered by hand signals. About 12 nervous Mohammedans were counted on board who

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hoisted a Japanese flag in the apparent belief that it would explain everything. The flag was lowered and brought aboard the sub along with the ship's papers, and all hands were ordered off preparatory to sinking the ship. About four women were discovered in the sailboat with small babies, one of them only about a month old. A live rooster was tied on the bowsprit by its feet with about six chickens and a goat on the forecastle.

Dutch papers dating back to 1950 with Jap clearances on various ports during the past year indicated that the boat was a sea-going home for a tribal family. The papers were kept and the men ordered back on board. An old patriarch on the sailboat with a small babe in his arms and a fez hat on his head gave a respectful salute when he realized that they were not going to be molested.

Shortly after New Year's Day a TAUTOG torpedo scored a solid hit on a NATORI Class cruiser near Ambon. The damage failed to slow down the cruiser so another torpedo or two could be judiciously administered, and the Jap man-of-war pulled out of range.

While passing through Saleier Strait TAUTOG sighted a Jap freighter and gained a position ahead of her base course to fire a spread of three torpedoes. In less than a minute the first explosion sent up a plume of water and a yellowish blue flame just forward of the stack. The ship, silhouetted in the moonlight, was easily observed as the second torpedo ripped into her side. The freighter sank quickly with much noise and numerous explosions.

On returning from patrol TAUTOG was picked up in Tiger Passage after all torpedoes had been expended by a force of Jap ships. The Japs depth charged, bombed, fired torpedoes by submarine and opened up with the main batteries from a cruiser on the sub. In short; she got the works. An anticlimax -to this was an incident in which the sub was caught in a whirlpool near Ambon and carried to a depth of 150 feet in an instant. The patrol ended on a happy note, for the "Terrible T" pulled into Freemantle safely on 30 January 1943.

A refit period at Freemantle was completed alongside USS PELIAS, and TAUTOG started out on her sixth war patrol on 24 February. Her patrol area was around Makassar Strait, north of the Malay Barrier and around Balikpapan. A grounded tanker was sighted on 17 March with topside damage from an air attack. The ship was on an even keel and it was decided that a well-placed torpedo would remove any doubt as to her further utility. One torpedo near the stern caused a beautiful explosion. The ship took a port list and settled by the stern as black smoke billowed up from the wreckage.

A convoy of five ships in two columns was sighted on 9 April which resulted in four torpedoes streaking through the water from TAUTOG. Explosion indicated hits on at least two ships, which finally resulted in the sinking of a freighter and one of the escorting destroyers.

In the sixth war patrol TAUTOG sank one of the most varied list of ships ever submitted in a single war patrol. Her "kills" included a destroyer, freighter, schooner, motor sampan and a sailboat. The sub returned to Freemantle on 19 April at the termination of an

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6 June off the entrances to Basalt Strait. Twenty seconds after the first torpedo was fired, a yellowish green flash ripped up the center of the target. The loud noise of one of the ship's pumps established the ship's position after TAUTOG submerged. The pump finally wheezed to a gradual stop and the familiar breaking-up noises of a sinking ship followed. When TAUTOG later surfaced, much debris on the surface with oil drums in the water and the strong smell of fuel told its own story of another Jap ship scratched from the list.

During the patrol there were three gun attacks and seven torpedo attacks, several of which were unsuccessful because of faulty torpedo performance. The aggressive seventh war patrol left the Nips mourning the loss of a 5000-ton freighter, a 9205-ton tanker with a coastal steamer of 1000-tons damaged. TAUTOG returned to San Francisco via Midway and Pearl Harbor for a navy yard overhaul and a well-deserved rest. The overhaul was given by the Hunter's Point Navy Yard, where numerous improvements and alterations brought TAUTOG up-to-date. After training on the West Coast and in the Hawaiian Area, the "Terrible T" departed on 7 October for her eighth war patrol, which took place in the area around Palau.

On 22 October TAUTOG surfaced at sunset near Fais Island to bombard a large phosphate plant. The first five shells hit at a point where radio masts, small buildings and a derrick were located. At least 10 shells were direct hits on large buildings and considerable black smoke ascended over the target.

The torpedoes aboard TAUTOG were expended in thirteen days with the net result not too clear but believed to be one freighter of 3600-tons sunk, another of the same tonnage damaged and two 4000-ton firefighters damaged, along with an 8000-ton tanker. With all torpedoes expended, the sub trailed a convoy against which she had made a damaging attack, and for two days sent contact reports which enabled another submarine to make a successful attack. One of the ships sunk was one which had previously been damaged by TAUTOG.

Arriving at Midway on 18 November, the sub underwent a refit period which started her out on the ninth war patrol on 12 December 1943. In spite of the active anti-submarine patrols in the Empire area, TAUTOG conducted a very successful patrol. On 27 December two spreads of three torpedoes each were fired at a freighter and a passenger ship. Escort vessels immediately went after TAUTOG, forcing her to dive and miss appraising the damage of the torpedo hits. A first class depth charging lasted for four hours, during which 99 "pills" were sent down to destroy TAUTOG.

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On 3 January a 3000-ton freighter was tracked off the mouth of the Kumano Kawa River one-half mile from a seawall. TAUTOG fired a spread of three torpedoes and swung around toward deep water and ran up the periscope to see what would happen. An explosion obscured the ship from sight as debris leaped into the air. The ship blew up in full view of a local town and most honorable Japanese were most embarrassed. It was most regrettable that this excellent show was prematurely interrupted, but the urgency of this interruption was most convincing, as the sound of high speed propellers, the sight of a patrol plane, and aircraft bombs exploding nearby will attest.

A radar contact on the following day started TAUTOG tracking a large Jap Maru. A spread of six torpedoes scored four hits just as an escort vessel headed toward the sub and fired deck guns. A last look at the Maru showed her broken in the middle with her bow and stern in the air. After clearing the scene, a series of explosions from the direction of the target lit up the sky like heat lightning.

During the night of 11 January, contact was made with two freighters with escorts. Three torpedoes streaked toward the first and biggest ship and a fourth stern tube shot went after the smaller ship. TAUTOG was forced down again by the escort vessels but an explosion indicated a hit on the first freighter and the second explosion was timed right for the second freighter. The screws on both ships stopped and considerable breaking-up noises were heard from the target direction. A series of 22 depth charges reached down for TAUTOG in vain.

TAUTOG returned to Pearl Harbor at the end of her ninth patrol and underwent a refit period alongside USS BUSHNELL. During this time Lieutenant Commander T. S. Baskett reported aboard as prospective commanding officer of the sub.

The tenth war patrol was conducted in the Kurile Islands Area and off the Northeast coast of Ilokakido, Japan. The only personnel casualty of TAUTOG history came when the sub was entering the patrol area on 5 March 1944. While doing some emergency work on deck, Laramee, MoMM2c, was lost overboard when a giant wave swept all men on deck off their feet. A heaving line and buoy was thrown to him but he soon disappeared from view. A search light was tagged in sight of being within the range of enemy aircraft, and the sub maneuvered in the vicinity to try to pick him up. A shipmate was lost and the rest of the crew vowed to make the Japs pay dearly for the loss.

All of the northern islands were covered with a white blanket of ice and snow, and in some places floating ice was two to three inches thick. It was the severest weather encountered on any patrol up to that time. The first attack came on 13 March when two torpedoes found their mark in a medium freighter similar to TAGA MARU. The ship stopped and settled by the stern. Subsequent torpedoes exploded prematurely and the third went too deep. TAUTOG opened up with her deck gun until the bridge and after deck house were demolished and about eight holes ventilated her sides.

Another ship was sighted coming over the horizon similar to the first ship and the "Terrible T" made a submerged approach to rip into her sides with a hit from a spread of three torpedoes. The ship sank.

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In short order. Subsequent observations on the first target disclosed her down by the stern, listing heavily with a fire burning merrily. Distant explosions were heard during the next half hour and a glow on the horizon indicated that the Japs would never use the ship again.

Off the coast of Hokkaido a radar contact was made on a convoy in the afternoon of 16 March. As TAUTOG approached there appeared to be about seven ships. She maneuvered to fire a spread of four torpedoes at a ship on the starboard flank with another ship almost in line beyond the first ship. After firing, an escort started to approach the sub and she was forced to dive after observing the first torpedo explode with tremendous force in the first ship. Two more hits were heard on the second ship in the same line of bearing. Considerable breaking-up noises with explosions were heard through the hull and on the sound equipment from the direction of the targets.

Upon surfacing, the ships which had stopped from torpedo hits apparently went under, for they were not in sight. The "Terrible T" wasted no time in pursuing the remaining ships of the convoy and maneuvered again for an attack on the starboard flank. Three torpedoes popped out after a medium-sized freighter and the sub swung around quickly for a spread of four torpedoes from the stern tubes as a violent explosion ripped into the medium-sized freighter. Three explosions resulted from the stern tube spread. Two were on the target ship and the third was undetermined. The medium-sized ship was dead in the water and sinking and the second ship disappeared from the radar screen.

Only four ships were now left in the convoy and a Jap destroyer became very interested in shortening the career of TAUTOG at this time. For the next hour and a half, fourteen heavy explosions sounding like depth charges shocked through the water not too close to the sub. During this evasion of death, contact with the dwindling Jap convoy was lost. TAUTOG ended this very successful patrol as she slipped into port at Midway Island on 25 March.

Commander Sieglaff was relieved as commanding officer of the doughty TAUTOG by Lieutenant Commander T. S. Baskett on 8 April 1944. Apparently the "powers-that-be" had been favorably impressed by the previous patrol in the lee of the Kurile Islands, East Coast of Hokkaido and the Northeast Coast of Honshu. The sub departed Midway on 17 April and set a great circle course to Paramusihiru.

Off the southern tip of Matsuwa on 2 May, TAUTOG spotted a 6000-ton freighter of the RYOYO MARU class in a small harbor between Banjo To and Matsuwa To. Four torpedoes were fired at a range of 2000 yards. One hit completely obscured the ship with spray. An hour later two more torpedoes sizzled into the harbor to score another hit. A light haze was seen around the target which had settled deeper into the water until the decks were almost awash. Numerous angles on the ship showed her in a spot charted at 3-3/4 fathoms. The ship was drawing every inch of that when last seen.

At dawn the following morning, TAUTOG made a radar contact in the fog. An approach and successful track made a sep-up for four torpedoes. Two of them hit! The sub circled around to make follow-up

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shots and had a little difficulty getting a satisfactory set-up. The difficulty was explained when TAUTOG began to sight gasoline drums, debris and life rafts. The ship was on an altogether new course with a 50-degree dive angle, bow under the water up to the bridge and the stern high in the air with the screw still turning over. A number of Japs were eagerly fumbling with a deck gun on the fantail and the smart sub skipper came hard left to get astern of the ship where the gun could not depress.

After considerable shouting at the 20 millimeter gunner, who wanted to shoot at a Jap on a life raft who was shaking his fist at the sub, the 20 millimeter managed to spray the ship's deck with about a dozen rounds of 20 millimeter fire before the gun jammed. The 20 millimeter shells kept the Japs ducking until the sub passed safely astern until the ship was lost in the fog with her propeller still helplessly twirling in the air.

On 8 May a nondescript collection of ships was sighted heading from southward toward Esan Saki. An approach was made and the largest freighter was selected as the recipient of three torpedoes. One of them hit the ship and white clouds of steam rose from the stack. The ship swung around, nearly stopped but showed no other effects of the hit. Two more fish were selected to liven up the show and the one hit scored from the second spread did the trick. When the smoke had cleared, the stern was submerged and the bow was up in the air.

Escorts were after TAUTOG by this time and the sub proceeded out of restricted waters along her only escape route. The escorts kept her company for about seven hours dropping depth charges every hour on the hour -- 1700, 1900, 2000. They were probably having supper at 1800.

A small convoy hove into view on 12 May and the larger of two freighters was honored with the last three bow torpedoes. Two hits obscured the target with smoke and the attention was quickly turned to the smaller freighter. It was not worth a stern tube shot so TAUTOG spun around to see if the big freighter could use another "pickle." She did not, "thank you." Only a thin cloud of smoke marked the spot where she had been.

TAUTOG proceeded to Pearl Harbor via the great circle route to arrive on 21 May for a refit period. By 23 June the sub was on her way to her twelfth war patrol via Midway. The patrol area included the east coasts of Hokkaido and Honshu, including the area south of Tokyo Bay. On 8 July a small freighter took the TAUTOG torpedo treatment under her poop deck. There was little apparent damage other than stopping the ship in the water. The sub circled and administered the second treatment which resulted in the final "cure." A torpedo struck amidships causing the ship to fold up and sink. Only one survivor could be found in the water. He was blue with cold and when questioned identified the ship as MATSU MARU, carrying a load of lumber from Tokyo to Muroran.

A trawler was sighted in the heavy fog of 9 July and the five-inch gun opened up on the vessel. After the first round, the gun had a misfire and the 20 millimeter finished the job. When last seen the trawler's decks were awash and she was sinking fast.

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While patrolling on the surface in the vicinity of Simusu Shima on 19 July, TAUTOG sighted the top of a steamer coming over the horizon. She dove immediately, identified the ship as a coastal vessel of several hundred tons, and made a battle surface. The seas made the deck slippery and unsteady but finally, 21 rounds of 5-inch shells started the vessel burning briskly. A few ineffective bursts of machine gun fire came toward TAUTOG and shortly thereafter an explosion blew off the stern of the ship. Several prisoners were picked up from a swamped lifeboat and the original prisoner had by now become a pretty fair interpreter. Through him it was learned that the vessel was called the HOKORIU MARU, carrying coconut oil from the Bonin Islands to Tokyo.

August 2nd brought several ships into view three miles off the coast of Miki Saki. Three torpedoes raced toward a freighter from 800 yards. The first explosion obscured the target with white smoke and the second hit raised a column of black smoke. When the smoke had cleared, the target was no longer in sight. TAUTOG went deep as the escort vessels headed her way. A few depth charges rattled the sub a bit but TAUTOG soon evaded the Japs.

The patrol ended as the sub arrived at Midway on 10 August 1944. Upon arriving at Midway on 10 August all aboard the "Terrible T" were overjoyed to hear that the sub was on her way to California for an overhaul at the Bethlehem Steel Company's Submarine Repair Basin. An excellent job was done and TAUTOG, after trials in the San Francisco Bay Area, departed for San Diego and Pearl Harbor for training before starting out on her 15th war patrol. Departing Pearl Harbor on 17 December 1944, TAUTOG stopped briefly at Midway and headed for the East China Sea off the West Coast of Kyushu.

On 17 January a ship was sighted heading toward the sub. When it came closer it was duly greeted with a spread of three torpedoes. One hit ripped into the forward part of the ship and blew off the bow from the bridge forward. The ship stopped in the water and was identified as a loaded high speed transport. The transport refused to sink and another torpedo was fired at her from 700 yards. The ship disintegrated into high-flying debris and a column of smoke several hundred feet high. The many thousands of splintered parts would never add up to a transport again.

The bright moonlight of 20-21 January revealed a Jap ship at 10,000 yards. TAUTOG approached from the dark side and fired two torpedoes into the ship. The ship was observed to sink and the submarine came in close to investigate. The moon had set by this time and debris could be vaguely seen and shouting from the water indicated survivors. One well-chilled, but otherwise intact survivor was brought aboard and was found to be a seaman first class whose station was at the depth charge racks. The ship was the SYURI MARU, an armed naval auxiliary of 1857-tons with a navy crew of 120. The ship was bound from Tsingtao to Sasebo.

During the afternoon of 21 January a Jap tanker came straight in toward TAUTOG out of the sun where it was almost impossible to see him. Two torpedoes hit the ship and the target stopped as the Japs aboard ran frantically up and down the catwalk. Smoke started to pour out of the ship and beautiful breaking-up noises were heard through the

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hull. The ship showed no tendency to sink and several more torpedoes were fired at her until another hit was scored. TAUTOG could not stay to see the inevitable end of the tanker because of the angry escort vessels closing in on the scene.

On her way back to Midway, TAUTOG destroyed a wooden trawler with five-inch shells and 20 millimeter fire. The target was left awash and burning. The submarine continued on to Midway to arrive on 1 February 1945. The commanding officer, officers and crew of TAUTOG were congratulated by the Commander Submarine Force, Pacific Fleet for another aggressive patrol added to the long illustrious combat record of the submarine. In her thirteen patrols TAUTOG had sunk thirty-one ships for a total of 128,326 tons.

After completion of a refit period, she was assigned the highly important task of furnishing target and training services for anti-submarine forces. At this time Lieutenant Commander A.H. Higgs became the new skipper of the submarine, having relieved the very successful Commander T.S. Baslett.

Her first training duty came in Pearl Harbor where TAUTOG worked with the aircraft training units for a period of about six weeks. Orders were received to proceed to San Diego for further training duty. Leaving Pearl Harbor on 2 April, the "Terrible T" arrived in San Diego one week later with battle flags flying. Since a state of war existed, few knew of her arrival, but those who were there to witness the scene were mighty proud of our submarine force in general, and the TAUTOG in particular. No one at the time knew that they were looking at the ship which probably sank the largest number of Japanese vessels of any ship in the world.

By Directive dated April 1947, the USS TAUTOG (SS 199), was transferred to the NINTH Naval District to train Naval Reservists.

*****

In view of her outstanding combat record, the USS TAUTOG has been awarded the Navy Unit Commendation, the text of which reads as follows:

"For outstanding heroism in action against Japanese combatant and merchant shipping during the Second, Fifth, Sixth, Eighth, Ninth, Tenth and Eleventh War Patrols in enemy-controlled waters of the Pacific. Searching restricted sectors relentlessly for targets worthy of her fire, the USS TAUTOG boldly defied strong surface and air opposition to develop contacts and launch her deadly torpedoes against heavily escorted hostile convoys. A stouthearted fighter, handled superbly by her skilled and gallant officers and men, she has carried the offensive to the enemy with indomitable aggressiveness since the first difficult and dangerous months of the war when Japanese strength was at its height. She has sunk three submarines, numerous tankers, freighters and transports and has destroyed or severely damaged many other hostile vessels in her valiant efforts to disrupt the flow of supplies to beleaguered forces.

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of the enemy and to shatter his ability to wage war. Although
repeatedly depth-charged and pursued for long periods, the TAUTOG
has achieved an illustrious combat record attesting the valor and
superb seamanship of her ship's company and reflecting the highest
crect upon the United States Naval Service.

USS TAUTOG earned fourteen Battle Stars on the Asiatic-Pacific
Area Service Ribbon for participating in the following operations:

1. Star/Year: Harbor-Midway -- 7 December 1941
1. Star/Anti-submarine Assessment -- 26 April 1942
1. Star/Anti-submarine Assessment -- 17 May 1942
1. Star/Submarine War Patrol - Pacific -- 17 July to 10 September 1942
1. Star/Submarine War Patrol - Pacific -- 8 October to 21 November 1942
1. Star/Submarine War Patrol - Pacific -- 15 December 1942 to 30
   January 1943
1. Star/Submarine War Patrol - Pacific -- 24 February to 19 April 1943
1. Star/Submarine War Patrol - Pacific -- 11 May to 4 July 1943
1. Star/Submarine War Patrol - Pacific -- 7 October to 18 November 1943
1. Star/Submarine War Patrol - Pacific -- 12 December 1943 to 30
   January 1944
1. Star/Submarine War Patrol - Pacific -- 24 February to 23 March 1944
1. Star/Submarine War Patrol - Pacific -- 17 April to 21 May 1944
1. Star/Submarine War Patrol - Pacific -- 23 June to 10 August 1944
1. Star/Submarine War Patrol - Pacific -- 17 December 1944 to 1
   February 1945

STATISTICS

OVERALL LENGTH: 307 feet
BEAM: 27 feet
SPEED: 21 knots
DISPELCEMENT: 1,475 tons

* * * * *

Restencilled October 1950

— page 16 —
55199/A16
Serial 035
DECLASSIFIED
From: Commanding Officer,
To: Commander Submarine Squadron SIX,
Via: (1) Commander Submarine Division SIXTY-ONE,
       (2) Commander Submarine Squadron SIX.

Subject: Patrol Report.

Reference: (a) [Consubscribe] Operation Order 26-41 of 21 October, 1941.
       (b) [Consubscribe] despatch 290540 of October, 1941.
       (c) [Consubscribe] despatch 311226 of October, 1941.
       (d) [Consubscribe] despatch 290045 of November, 1941.

1. In compliance with reference (d), the following information is provided:
   - Date and time of the patrol
   - Type of submarine
   - Number of torpedoes fired
   - Number of depth charges fired
   - Number of hits reported
   - Number of hits on periscope
   - Number of hits on deck
   - Number of hits

— page 17 —
3. Submerged patrol was conducted at deep submergence, normally at 80 feet, the ship was brought to periscope depth at half hourly intervals for observations, and the vertical antenna was exposed for the first five minutes of each hour when weather permitted. This was done, despite presumed control of the air by MIDWAY, to train personnel in changing depth, and to reduce battery consumption by using lower speeds than was possible at periscope depth due to the prevailing long swells. Running at deep submergence was made necessary by sea conditions during the last two weeks of the patrol. The daily gravity drop was frequently less than 45 points and the average for the entire patrol was 52 points. A continuous sound watch was maintained during all submerged periods and during reduced visibility on the surface, however, from this patrol and previous experience in this area the maximum listening range will be less than 3000 yards with average weather conditions. It was originally planned to run two engines on propulsion each night that visibility permitted in order to make water. When the length of the patrol was extended the fuel on hand permitted the use of only one engine on propulsion. During the latter part of the patrol surface speed was reduced to 5 knots because of weather conditions and to determine minimum fuel consumption when not under the necessity of making water. This slower speed permits a much more efficient patrol because of the increased comfort and alertness of the lookouts, the increased effectiveness of the sound equipment and the lessened physical strain on all hands. Diving time at slower speed is naturally increased.

4. Instructions to prepare for departure on this patrol were received while in Tender Uphoop status and considerable machinery was disabled incident to overhaul. As a result of this TAUTOG departed Pearl Harbor with one main engine not finally adjusted, one auxiliary engine partially disassembled and one air conditioning unit out of commission. This resulted in considerable work during passage to MIDWAY and in the early part of the patrol. A casualty put Number Two Auxiliary Engine out of commission on 4 November. With the exception of this engine all derangements were corrected by the ship's force and all machinery was in operation condition on return from the patrol. However, at the present time, due to the interrupted overhaul of Number One Main Engine, the engine hours run during the patrol, and the casualty to Number Two Auxiliary Engine, three engines require overhaul. This has resulted, despite the compliance with the requirement to overhaul one main engine each quarter, because of the strenuous operations during the past calendar year. In this connection it must be realized that the necessity for remaining on twenty-four hours notice during normal "At anchor" periods results in doubling the time and work required for a main engine overhaul.

5. Following is tabulated a summary of some of the data taken during the patrol. More details will be found under comments included under paragraph 7. Data concerning the passage to and from MIDWAY is not included as it is not considered pertinent.

U.S.S. TAUTOG -2- ENCLOSURE (A)

— page 18 —
38
Total time submerged: 460.7 hours
Total miles submerged (does not include 5 miles of depth change): 1103.4
Average speed submerged: 2.39 knots
Total battery water used: -1280 gals.
Average battery water used per day, (for 30 days commencing and ending with normal electrolyte level): 42.7 gals.
Total fresh water made: 6466 gals.
Total fresh water used: 9138 gals.
Used for making battery water: 817 gals.
Used for makeup engine cooling: 435 gals.
Torpedoes: 80 gals.
Used by personnel: 7806 gals.
Average water used per man per day: 3.16 gals.
Average water recovered daily from air conditioning: 83 gals.
Total fuel used: 34450 gals.
Average fuel per day: 907 gals.
Total lubricating oil consumption: 3241 gals.
Average air compressor hours per day: 5.05
Average air temperature: 73°
Average temperature in ship at end of dive: 86°
Average humidity at end of dive: 60%
Total food used (45 days): 11742 lbs.
Average weight of ration: 4.0 lbs.

7. The reduction in battery water consumption to less than forty-five gallons per day, or about half the amount normally used, is considered noteworthy. This was made possible only through constant and meticulous attention, by the engineer officer and the electrical force, to changing and ventilating rates. This conservation made it possible to complete the patrol without damaging the battery by addition of impure water, despite the loss early in the patrol of use of the battery water evaporator, attached to Number Two Auxiliary Engine.

COMMENT BY COMMSURFAC: Low battery water consumption indicates close attention to this important detail of battery water conservation.

7. Following are general comments, suggestions and recommendations concerning various subjects which are considered of interest. Because of the expected interest, every effort has been made to insure the accuracy of the data taken, and the preparation of this part of the report has been continuous throughout the patrol.

(A) "FEATHER AND NAVIGATION

The weather encountered south of MIDWAY during the period October 25 to December 1, 1941, was generally unfavorable and imposed hardships and handicaps in the maintenance of an efficient continuous patrol. Although conditions were not comparable in severity to those of the North Atlantic winter; they were a main factor for not reckoning such a patrol as merely "six times the seven day patrol."

For the most part, the sea was too rough for good depth control at periscope depth. There was often the danger of broaching.

U.S.S. TAUTOG -3- ENCLOSURE (A)

— page 21 —
00-03 1 2 3 4
: 03-06 2 3* 4* 1 1* 2
: 06-08 3* 4 1* 2* 3 3* 4
: 08-10 4* 1 1* 2 2* 3 3* 4
: 10-12 1* 2 3* 4 4* 1 1* 2
: 12-14 1* 2 3* 4 4* 1 1* 2
: 14-16 3* 4 1* 2 2* 3
: 16-18 4 1 2 3 4
: 18-21 1 2 3 4
: 21-24 1 2 3 4

and continue. (*indicates diving officer)

While submerged during the 03-06 or 18-21 watches the commanding officer took over [CONN]; also during the early morning the commanding officer relieved the officer of the deck who inspected the ship and checked the rig and compensation. Although this system involved an average of nine hours watch each day, the watches on each station were short and the system was well liked by all officers. During darkness the commanding officer spent considerable time on the bridge and in the darkened conning tower, when the visibility was good he felt free to go below but remained awake throughout the surface part of the patrol. The commanding officer would also expect to take over navigation while the regularly assigned Navigator was on the watch list.

Four chief petty officers were placed on the Junior Officer of the Deck watch list and during the course of the patrol the Chief Petty Officer responsible was relieved of watches during any major work, such as repairs to Number 1 Main Engine and Number 2 Auxiliary Engine and repairs to the air conditioning equipment. This system proved flexible in use and most satisfactory. Inasmuch as quarters are available in this class ship for four Chief Petty Officers it is considered desirable to carry an additional Chief Machinist Mate.

A straight watch in three was maintained for the crew throughout the patrol. In addition, all hands with the exception of the Chief Petty Officers, radioman, ship's cooks, and the helmsman and lieg helmsman, who alternated as lookouts, were placed on a special lookout list from which necessary lookouts were kept on watch, each man on this list averaged one two-hour watch every 32 days.

While submerged the stern planesman alternated with the trim manifold operator; the lieg helmsman in each section was trained as a bowplane operator, after which he alternated on this watch with the helmsman and under instruction as trim manifold operator; the radioman alternated with a firman or machinist's mate as sound operator in each section. Continuous watch was kept in each torpedo room, weather conditions made it necessary to carry out the torpedo routine during the submerged period. Two mess cooks were used throughout the patrol; a ship's cook or mess cook was on watch in the crew's mess room at all times.

Watches were dogged weekly to afford rotation for training purposes. All dives were made by the section on watch. After the first few days of the patrol the Control Room Watch; the Junior Officer of the Deck, the Auxiliary Electrician's Mate and the Auxiliary Machinist's Mate, with the assistance of the helmsman,

T.S.S. TAUTOG

-6- ENCLOSURE (A)

— page 22 —
1. The following text is transcribed from a U.S. Navy document:
   - "The routine of the patrol, with consequent desire to keep occupied in order to relieve the boredom facilitates training. Too, the officers, relieved of the normal load of paper work were able to devote more of their time to this. Each man was trained thoroughly at whatever diving station to which assigned, and also stood supervised watches at an alternate station."

2. It was found desirable to have lookouts rotate sectors and take their stations on the O.O.D. platform and the cigarette deck. In addition to standing more efficient watches because they were better protected and under closer supervision, during the course of the watch they received considerable instruction from the Officer of the Deck. An added advantage was their being in position to clear the bridge more rapidly.

3. All hands were encouraged to take the training course for the next higher rating and the amount of work completed was gratifying.

All nonqualified men were given instruction and assignment of notebook work were required.

(D) VISIBILITY

The distance at which a darkened submarine can be sighted at night is believed to be generally over estimated. From the experience gained enroute to and from the patrol area and contacts with THRESHER near the mutual boundary it is estimated that under ideal conditions (bright moonlight, calm flat sea, clear hard horizon), when the bearing of the submarine is known within a small sector and experienced officers are acting as lookouts, the submarine will seldom be sighted beyond 4,000 yards. Replace the officers with average alert lookouts, directed to the expected bearing, and the range at sighting will probably average less than 1,000 yards. Under unfavorable conditions, (dark night, horizon blurred, silhouette at times hidden by waves and lookouts partially blinded by spray) any contact made between two submarines

U.S.S. TAUTOG
-7-
ENCLOSURE (A)

— page 26 —
1. Each battery charge was terminated on complying with the minimum requirements of M.I. (one reading of corrected voltage and gravity within 5 volts and 5 points of the last equalizing charge).

2. Ventilation was maintained at the minimum required air flow at all times. (Even with the finishing rate of 400 amperes the prescribed 400 cu. ft./min. usually sufficed).

3. Equalizing charges were omitted.

During the course of the patrol there were two comparatively long periods of practically constant running conditions which were utilized to determine the average daily fuel expenditure. During seventeen days running with one engine on propulsion at a lead to permit maximum water distillation, about eleven knots, and charging with another engine the fuel expenditure averaged 1160 gallons per night (of 11.4 hours). In a second period of 8 days propulsion was shifted to battery-motor as soon as the charging rate had been reduced sufficiently for one main engine to carry the load and the engine continued on zero float when the charge was completed. The average fuel expenditure under these conditions was 500 gallons per night. The total fuel expended on patrol station was 34,450 gallons.

(G) FRESH WATER

On receipt of the despatch extending this patrol it was determined that the fuel on hand would permit the use of only one engine on propulsion during the nights. In an effort to predict the amount of fresh water which could be made, the summaries of the seven day patrol reports of eight submarines, which were available, were broken down and yielded the following information:

Average fresh water used by personnel, gallons per man per day - 6. Average estimated fresh water capacity per engine hour, (600°F exhaust) 35.

— page 27 —
505.0
Average fresh water actually made per day - 505.0
Average fresh water per engine hour actually made (computed using 2 engines, 12 hours daily) - 21.0

This was assumed to be the maximum capacity which could be expected for the following reasons:

The above figures were likely to be inaccurate because of the comparatively short periods over which they were compiled.

From some of the reports it was apparent that evaporators were in use for more than 24 engine hours per day.

The majority of these patrols were conducted in comparatively sheltered waters and it was known that rough weather would greatly reduce the evaporator output. A moderate sea will frequently reduce the output per evaporator hour, to ten gallons; during one 24 hour period while TAUTOG was enroute to INDIAY it was reduced to less than five gallons.

It was estimated that 200 gallons of fresh water could be distilled per day and the decision was made to limit consumption by personnel to the amount distilled, at least during the early part of the patrol. In the "OCEANICS" on several of the seven day patrols it has been stated that fresh water consumption should be reduced by proper indoctrination of personnel, however, there is a point where indoctrination ceases to be effective and more positive steps must be taken to limit consumption. To effect this necessary conservation in TAUTOG it was decided that fresh water would only be used for cooking, drinking, dish washing and tooth brushing. To insure this, all outlets were closed and valve handles removed; pressure was not kept on the system except when water was actually being used. Water for cooking and dish washing was issued as needed under the supervision of the senior ship's cook, iced water for drinking was kept in pitchers, and water was turned on in the wash room twice daily for tooth brushing, also under supervision. These restrictions were somewhat relaxed depending on the available supply of fresh water; however, from a most careful check of water consumption during this patrol, it can be definitely stated that the above uses require close to three gallons per man per day when closely supervised. It has long been the opinion of this Commanding Officer that more water than is generally accredited is used by the galley and scullery. It is believed that the normal operating submarine will use close to five gallons per man per day for this purpose. Since the best indoctrinated crew will not voluntarily reduce its personal consumption below two gallons per day, any reduction below a total of seven gallons per man per day must be made in the galley; according only by physical means.

Water from the ship's tanks was unpalatable for drinking in any but the calmest weather; when the ship had any appreciable motion the water had a light brown color and a dark brown taste from the metallic brown paint used in the tanks. This condition is too well known throughout the service to require comment, the normal explanation being that the paint was not properly dried before the tanks were filled. TAUTOG's tanks were painted in the Portsmouth Navy Yard; on arrival in the yard the tanks were opened and ventilated with blowers for four days before being painted.

U.S.S. TAUTOG

-12- ENCLOSURE (A)

— page 28 —
3.16 gallons per man per day
Condensate 1.27 " " " " "
Total 4.43 " " " " "

This was sufficient to keep on the border line of cleanliness, however there was considerable acne and other skin disorders. While this did not approach the minimum for existence it was below the minimum for reasonable comfort.

The unpleasant taste of the cruising water was the subject of more complaints than the shortage of wash water and probably had a more adverse affect on the health of the crew because it resulted in reducing use of drinking water.

Despite the proposed installation of adequate evaporators, it is recommended that the following alterations be made to enable this class vessel to best utilize the fresh water available and to more readily limit fresh water consumption if necessary:

(a) R e v e r t t o t h e u s e o f c e n t e n t w a s h i n f r e s h w a t e r t a n k s u n t i l a n o t h e r p r e s e r v a t i v e a c c e s s t a b l e t o f o r e s s a f f l o a t i s d e v e l o p e d .

(b) I n s t a l l t o o t h b r u s h f o u n t a i n s , a s r e c o n m e n d e d i n p r e v i o u s s e v e n d a y p a t r o l r e p o r t s , i n c r e w ' s w a s h r o o m . T h i s i s c o n - s i d e r e d e x t r e m e l y d e s i r a b l e a s a s a n i t a r y m a s u r e .

U.S.S. TAUTOG -13- ENCLOSURE (A)

— page 29 —
U.S. SUBMARINE PATROL
:  U.S. TUTOG

(c) Install a separate water line to supply the following:
   - Officer's pantry, galley, scuttlebutt and
   - Tooth brush fountains. This would permit use of water of
   - higher salinity or less purity for washing and, in case of
   - necessity, would permit storage of non-essential water.

(d) Divide auxiliary tank into three sections and pipe the lower
   - section for wash water. This would be comparatively easy
   - to accomplish, could not in any way adversely affect the
   - military characteristics of the ship, would double the pre-
   - sent fresh water capacity resulting in more endurance in case
   - of failure of evaporators, and finally, by providing a place
   - to collect water unfit for drinking purposes, would make
   - available more water which could be used for bathing and
   - clothes washing.

COMMENT BY COMSUBPAC: - It is requested that Commander
   Submarine Squadron SIX comment on the above recommendations.

The general performance of all auxiliary machinery and hull
   equipment throughout the patrol is considered very satisfactory,
   no casualties occurred adversely affecting the military character-
   istics of the ship. Routine tests and inspections were held as far
   as practicable, lubrication routines on machinery and fittings
   within the hull were carried out and any defects to machinery and
   fittings were repaired when occurring.

The individual performance of various units of auxiliary
   machinery under conditions of constant use was particularly
   gratifying and the majority required no work other than routine
   inspection and lubrication.

The high pressure air compressors were used daily with a total
   of 1920 air compressor hours for the period, and required no work
   other than periodic grinding of valves and routine lubrication.

The trimming pump developed a leaky connection to the
   snifter valve which was repaired and the valve itself was ground
   in. The drain pump was disassembled for inspection and both the
   suction and discharge valves were refaced.

The refrigeration machine was run constantly and maintained
   an average temperature of 19° in the cold room and 37° in the cool
   room.

Number two air conditioning unit was run continuously through-
   out the patrol. Number one machine was repaired after getting
   underway, by sweating plugs in the ends of the leaking condenser
   tube, and was in full commission by 26 October. This machine was
   run continuously for the remainder of the patrol without incident.

Ventilation conditions were very satisfactory and the ship
   was comfortable at all times. Both blowers were run at half
   rheostat in parallel, approximately 1500 R.P.M., except during
   the high voltage stage of the battery charge when they were shifted
   to series. This speed gave sufficient change of air without notice-
   ably reducing the air conditioning efficiency. Ventilation was
   normally outboard on the surface, weather permitting, and
   recirculating while submerged. Daily temperature readings were
   taken just prior to surfacing with the following average results:

U.S.S. TAUTOG -14- ENCLOSURE (A)

— page 31 —
1. TORPEDOES
2. When craders were received for the patrol, fourteen Mark XIV-1 torpedoes with warheads attached were on board in condition three and in the process of being routed. Fourteen Mark V-1 exploders were on board, those turned in and twenty-four Mark VI-1 exploders were obtained from the Submarine Base. Preparations were commenced immediately to make fully ready ten torpedoes for loading the tubes; this was completed at 1530. The last reload torpedo was received from the Submarine Base at 1600 and all were completely stowed below by 1630.

Preparations for reload torpedoes for war shots were commenced four for the afternoon prior to getting underway. Heavy weather prevented any further work on reload torpedoes until the fourth day cut when two in the forward room were made fully ready. During the first submarine patrol the following day, all reload torpedoes for the afternoon were made fully ready and the remaining eight were completed during the next two nights. Torpedo No. 15897 developed a leak in the forward bulkhead of the air flask and three attempts at securing the seat of the air flask were made during the next three submerged patrols before this torpedo could be fully charged. The completion of this repair placed all torpedoes on board in a fully ready condition.

While preparing reload torpedo No. 19179 for the afternoon, the gyro locking mechanism would not function and the gyro could not be locked. The gyro housing was removed, the gyro installed, locked and the housing replaced. The failure was found to be in the locking bar of the spinning and locking mechanism.

During the patrol, the torpedoes in tubes six and ten were used for night readings, tubes tubes were flooded each night that the weather was calm enough for probable normal torpedo runs, a total of thirty-one days.

During this period one case of a completely flooded afterbody was completed flooded during the first night. On the inspection following, one exhaust valve sprung was found broken. An afterbody air test was made after the springs were removed and a leak in the delivery check lock off had was located and repaired. The torpedo was properly treated for flooding. Later in the patrol this torpedo was changed exhaust valve spring. The torpedo in tube was partially flooded on the eighteenth night when about a gallon and half of water was found in the afterbody. Inspection revealed the cause to be a ruptured gasket in the top bearing access plate. On further inspection all afterbody gaskets were found to be soggy and deteriorater. All gaskets of torpedoes in flooded tubes were removed weekly after this failure.

U.S.S. TAUTOG
-16-
ENCLOSURE (A)

— page 32 —
1. The torpedoes were initially preserved with a layer of WARTIME SLUSHING COMPOUND along the bottom and a coat of RUST PREVENTATIVE COMPOUND GRAME "A" applied hot over the entire torpedo. This preservative was renewed as required at each inspection. The torpedo's tube six was reported, at last overhaul, to have pits .002" to .01" deep from 5 to 7 o'clock, all along the bottom. No appreciable increase in the pits was noted during the patrol. The most serious pitting was apparent around the afterbody drain plug and measurements of these pits with a depth micrometer gave readings up to .060". Although readings of the depth of these pits was not recorded on the last overhaul sheet; no appreciable increase in pitting is believed to have occurred.

: 2. From the experience obtained it is believed possible to prevent serious flooding with the use of gaskets and retainer plates attached to the adjustable tail buffers, and to prevent corrosion by the method used above.

: 3. The torpedo tubes were operated as much as possible while the torpedoes were out of the tubes and are all considered to be in satisfactory condition to fire torpedoes. The entire fire control system was energized daily and all gyro spindles rotated through the full arc both by slewing and by T.D.C. in automatic control. To check the condition of the gyro setting mechanism of the torpedoes, torques were taken at the end of the fifth week and these averaged 21/2 lbs. for all ten torpedoes.

: 4. During one night of especially heavy weather a severe roll (about 40°) dislodged the afterlocking pin of the cradle carrying the reload torpedo for tube six, permitting movement of the cradle with the forward pin acting as a pivot. This motion forced the warhead up against the forward edge of the pit, and the sharp edge of a locker on the forward end of number one main ballast tank cut a hole about 1/2" long completely through the warhead shell.

: 5. Due to the heavy weather conditions no work on torpedoes was attempted on the surface other than air charging, other work was accomplished submerged. This was considered mandatory for safety of personnel, and it is not believed that submarines of this type will ever operate in an area where torpedo work can be safely done on the surface.

U.S.S. TAUTOC - 17 - ENCLOSURE (A)

— page 33 —
1. That the Task Force Commander include a submarine dispatch number for each addressee, in the body of all dispatches; for example: SUB DIS NUNBERX X MIDWAY FIVE X WAKE SEVEN X:

(2) That dispatches affecting submarines, but addressed with a collective call, such as "MAJESTIC FLEET", be repeated on the Submarine Fox Schedules. In this connection, dispatches that are vital to the submarine on patrol, such as CAPTAIN's 142111 of November, changing the recognition signals in effect at the time, should be assigned a submarine dispatch number. This number could be transmitted in a separate dispatch or included in the body of a subsequent dispatch, dependent upon the precedence. Example: SUB DIS NUNBERX X MIDWAY SIX X WAKE EIGHT X MUSK 142111 X NPM NUMBER SIX NINE FIVE X;

(3) That two Fox Schedules, with an interval of four hours, be designated as Submarine Fox Schedules. This would enable a submarine forced to submerge during the initial schedule, to receive its traffic during the same night on the second schedule;

(4) That all traffic be handled through the Task Force Commander and that all commands, units, and stations concerned be informed of the submarines on patrol, and the proper communication channel. This procedure would have prevented the three day delay that occurred in the aforementioned firing notice from NAS MIDWAY.

The above procedure, or a similar one, would be simple in execution, would demand no complicated instructions, and would require no changes in organization. It would do away with the necessity of acknowledgements, would greatly increase reliability, and would promote the confidence in communications that is needed for the execution of the submarine's mission.

In connection with the reliability of communications within the patrol area, it would be advantageous to establish a schedule for inter patrol plane-submarine communications. In view of the indefinite flying schedules of patrol planes during inclement weather, and the difficulty encountered by the submarine in reliably maintaining the depths required for vertical antenna exposure when using intermediate frequency, it is recommended that the radio shore stations at MIDWAY and YAKI be utilized to broadcast any contacts or messages, on a scheduled broadcast. Since the patrol planes' area extends 300 miles, any contacts made and reported to the shore station to be broadcasted on a morning schedule at 0600 LCT, and an afternoon schedule at 1000 LCT, would forewarn the submarines well in advance of any possible entry of a vessel within their assigned areas.

COMMENT BY COMSUBPAC: - All despatches originated by Commander Task Force Seven to submarines on patrol and answers thereto will be numbered serially by the originator. All submarine traffic including messages of general interest addressed to Pacific Fleet are rerun on NPM Fox schedules at 0900 and 1100 GCT or as soon thereafter as possible. This

— page 35 —
1. In addition to the above a thermometer and an accurate measuring flask for mixing developers are essential.

COMMENT BY CONSULAR: Submarines subsequent to ARGONAUT (less TACKKERL and IARLII) plus vessels of Submarine Division 201 are being supplied cameras and accessories.

(1) CONTINENTAL.

TAUTOG, as a result of the experience gained in the recently completed seven day patrol, decided to feed only two meals a day, supplemented by soup at noon and sandwiches or fruit at midnight, during this patrol; provisions were loaded accordingly. East advantage was not taken of the food stowage space available in the ship, in that all foods carried were not of the type best fitted for patrol use. This was due in part to inexperience and to acceptance of current information and ideas without sufficiently careful checking. To a greater extent it was due to the fact that stowage spaces were very nearly full of provisions at the time the orders to prepare for patrol were received. When the length of patrol was extended the two meal a day routine, commenced by choice, was continued through necessity; the midnight sandwiches and fruit had to be discontinued due to lack of food. While no one suffered from lack of food, larger portions would undoubtedly have been eaten and there was normally very little garbage. An additional two thousands pounds of food, which would have permitted serving sandwiches at midnight and somewhat larger rations at other meals, would have been very welcome. A very considerable amount of canned fruit, fruit juice and tomato juice was carried in various lockers and corners throughout the ship and this was served with practically every meal. The soup, served at noon, was usually excellent and was sufficient for that meal. It would have been more acceptable at midnight but making soup, or even reheating it, while on the surface would have been impossible due to the notion of the ship.

It was realized early in the patrol that, even with the considerable amount of food carried outside normal provision stowage spaces, endurance for forty-five days would require comparatively strict rationing. To insure that on any subsequent patrols best advantage would be taken of the facilities available and, if possible, to determine what the maximum endurance of the ship was, the Commanding Officer instigated a detailed study of all information available on this department. Preliminary investigation indicated that TUTOG was not alone in lack of proper appreciation of the problem involved. An instance is the fact that, while all seven day patrol reports stated or implied that either a standard submarine patrol menu or a war plan menu had been followed, the amount of food consumed per man per day varied from 4.22 to 6.69 pounds. In one case the daily cost of ration indicated considerably more than this latter amount.

It is apparent that any conclusions drawn from these reports, concerning the commissary department, would be misleading because, with two exceptions, the quantity of food consumed exceeded that which would have been available on a long patrol.

To obtain an estimate of the amount of food required the

— page 36 —
1. USS ANA 1. 320-2(a)
: 2. Using fresh provisions
: 3. Using canned vegetables and
: 4. 50% canned or preserved meats
: 5. 4.7 "
: 6. BuS&A Manual Art. 1303 (Standard
: 7. Amount of food to be carried for
: 8. 1,000 men for 30 days)
: 9. Average used on submarine 7-day
: 10. patrols
: 11. Submarine Sample Menu
: 12. Submarine 91-day Menu
: 13. U.S.S. TAUTOG 45-day Patrol
: 14. #This menu is considered below subsistence standard.
: 15. Eliminating obviously high expenditures.

At the start of the patrol TAUTOG carried 13,980 pounds of provisions, of which 11,742 pounds were consumed. The remainder consisted of emergency rations, remnants, and unusable stores. The amount of the latter was greater than would normally be expected because of errors in records of stores on hand over a considerable time. Because the commissary accounts were over-expended the frozen meats on board, which constituted a major part of the cold storage provisions, were of the less expensive type and did not go as far as the boned cuts would have. Some of the dry stores also were of types not best suited for maximum endurance. Had the same amount of food been carried in varieties best suited to patrol needs the situation would have been much improved. However, an adequate ration would have required

T.S.S. TATTOO
-22-
TATTOO 1/1

— page 37 —
30 June 327.00
31 July 185.64
31 August 41.00
30 Sept. (-) 171.00

A comparison of the normal stowage capacity available, together with the known components of a balanced normal ration reveals that thirty days provisions can be carried in these spaces. The distribution between cold storage, chill room and dry stores is such that a six pound ration of healthful foods, including fresh fruits and vegetables, could be fed. If submarines load with this end in view at the beginning of each operating period, and use these provisions during the operating period and the first part of the following period in port, there would be frequent opportunities to inventory the food on hand, the stowage spaces could be kept in a cleaner and more sanitary condition and the possibility of spoilage would be reduced. If, when in this

U.S.S. TAUTOG
-23-
ENCLOSURE (A)

— page 39 —
1. It is considered imperative that suitable protective clothing be provided for the Officer of the Deck and lookouts. At night even in semi-tropical waters, oilskins do furnish sufficient warmth. While the generally poor quality and unsuitability of the issue submarine woolen clothing is well known, the amount of water it will absorb during a watch is not generally realized. This quality precludes its use on the bridge except in calm dry weather since, with the relative humidity existant during a patrol, the average drying time of a submarine coat after a moderately wet watch, is approximately three days. This clothing is too bulky to wear under oilskins and is usefully for the engine room watch.

: While operating off New England last winter the officers of this ship provided themselves with "Parkas" coats with a hood to cover the head, made of water resistant duck and lined with wool flannel. These coats are light in weight and comfortable to wear. Although the duck absorbs some water, they keep the wearer dry and, if the excess water is wiped off before hanging up, they will dry coparatively quickly. This is mentioned in this report because these coats were worn during every night watch of this patrol and proved very satisfactory. It has been the experience of this Commanding Officer over a period of years that satisfactory submarine clothing has been "undergoing tests", "awaiting service recommendation", "on order" or for some other reason almost but not quite procurable. It cannot be too strongly recommended that, before a submarine is sent on war patrol clothing be provided for the O.O.Ds and lookouts which will keep them sufficiently comfortable to maintain an effective watch and allow them sufficient freedom of motion to permit them to clear the bridge expeditiously.

: Oilskins were worn mostly by lookouts, over sweaters, woolen undershirts, or whatever light warm clothing was available. There was considerable wear and tear of oil-skins, particularly when clearing the bridge before diving, therefore more than the normal allowance should be carried on patrol.

: The men were considerably handicapped in regard to personal clothing because of departure on such short notice. Since the ship had just returned from an operating period many officers and men had a relatively large proportion of their working clothing in the laundry. "Llues" and "Whites" were carried in the limited locker space aboard because this vessel had no tender. The work of preparing the ship left the men scant time to attend their personal affairs.

: Practically all hands were agreed on the value of "Shorts". They are more comfortable on dives, occupy less locker space and are much more easily washed.

: Laundry during this patrol was, in the main, limited to underwear, sox, and shorts. It is believed that a bare minimum of laundry will be done on any patrol regardless of the facilities provided, due to the drying problem, inherent because of the limited space. The solution is carrying more clothing, and only work clothing, aboard.

(N) MORALE

U.S.S. TAUTOG -25- ENCLOSURE (A)

— page 40 —
1. During the early part of the patrol there was a gradual relaxation of tension which accompanied an evident general feeling of confidence in whichever section was handling the ship. Officers and men appeared to relax more while off watch and they were more alert while on watch than on the seven day patrol. There, during the first week, there was comparatively little sleeping during the dive, during the remainder of the patrol there were few men up and about during the day except the watch and men actually working.

2. The importance of palatable food on morale is great. An "Open icebox" on patrol would be a decided asset, unfortunately TATTOG did not have sufficient food on hand to permit this. A submarine going on patrol should carry the maximum amount of food in wide variety and highest quality.

3. A large amount of reading matter should be carried, simplified technical books are recommended in addition to novels. Since the men will read in their bunks or in other poorly lighted spaces some attention should be paid to the size print of the books carried.

4. The old reliable gars; cribbage, acey ducey and checkers were popular; thought should be given to other gars, even if their popularity only lasted a week they would have served to some benefit.

No sun lamp was available for this patrol; one would have been very popular. Towards the end of the patrol the subject of seeing the sun railed that or drinking the first beer as a topic of conversation.

For any ship the first patrol will be the best so far as morale is concerned. The knowledge that TATTOG was among the first group of ships to make a forty-five day patrol was beneficial, as was the competitive spirit aroused by the narrow fuel margin. In future patrols these factors would be absent. Forty-five days imposes considerable strain on a group of men cooped up in a submarine and for consecutive patrols of this nature it is considered too long for the temperamental endurance of personnel.

(0) SHOKING.

U.S.S. TATTOG

NINTH STATION (A)

— page 41 —
The commanding officer relieved the "Officer of the Deck and the quartermaster relieved the lookouts, in turn, to permit them to go to the conning tower for a smoke before the morning dive.

Smoking was not permitted during the first few days; after the officers and crew became accustomed to it and realized how much fresher the air in the ship was and how much better they felt at the end of the days dive the majority were strongly in favor of it. An incidental benefit was the conservation of cigarettes, of which only a limited supply was on board.

Inasmuch as there is no adequate storage space on board a submarine, and funds are not usually available to purchase a supply of cigarettes for a long patrol, it is recommended that provision be made for the tender or base tending submarines to carry a supply of "sea store" cigarettes for issue. Experience on this patrol indicates that where the normal consumption of cigarettes is approximately one carton per man per week, the consumption on patrol was approximately one half of that.

(P) HEALTH

The health of the crew was, considering the circumstances, good throughout the patrol. Minor complaints such as constipation, colds, headaches, etc., were naturally more numerous than under normal conditions. There was by the end of the period a noticeable debility or lack of "physical tone" manifested in part by headaches and constipation, felt by most of the officers and men. This condition was due to the combination of unnatural living conditions imposed for so long a time, lack of exercise, lack of sunshine, reduction in food variety, probably vitamin deficiency, and the reduced consumption of liquids. The few of the crew who lost a little weight, were those who could probably afford it.

Although use of fresh water was curtailed, sanitary conditions were maintained throughout. The usual applications of croosol to heads and wash room, and the scrubbing of decks in mess room and sleeping compartments were continued. Cool weather throughout the patrol was a distinct advantage to both sanitary conditions and the comfort of the crew.

The pharmacist's mate gave treatment to the following cases:

| Condition | 60 cases |
|||
| Cold      | 17       |
| Eye irritation | 2        |
| Ear aches  | 2        |
| Catarrhal fever (mild) | 1 |
| Dental abscess | 1 |
| Horatio (Sstry) | 1 |
| Trichophyrosis | 2 |
| Hemorrhoids | 2 |
| Several minor cuts and abrasions. | 1 |
| Numerous headaches. | 1 |

The equipment and drugs supplied to this vessel's medical stores is considered satisfactory for long patrol periods except for the following:

U.S.S. TAUTOG -27- ENCLOSURE (A)

— page 42 —
1. There is a great need of vitamin tablets containing principally vitamins B and D. Every patrolling submarine should be provided in sufficient quantity to permit their being served daily to all hands to insure no deficiency in the ration.

(b) It is believed that an ear speculum complete with head mirror or a Sigel's Otoscope would be a desirable addition to the medical equipment.

(c) Several selected dental forceps should be carried. (In the case of C.E.F. Floyd, R.M.E., U.S.N., who was finally treated on MIDWAY for an abscessed tooth, no equipment existed on board to handle his case, and developments might have been very serious had it been impossible to remove him from the ship for treatment.

/s/ J.H. WILLINGHAM.

U.S.S. TAUTOG -28- ENCLOSURE (A)

— page 43 —
SS199/A16
Serial (01)
Pearl Harbor, T.H.
February 4, 1942.

DECLASSIFIED
From: Commanding Officer.
To: The Commander Submarines, Scouting Force.
Via: The Commander Submarine Squadron SIX.

Subject: Patrol Report - 26 December 1941 - 4 February 1942.

Reference:
(a) CSSF Operation Order 36-41
(b) CSSF Serial 300300 of December.
(c) CSSF Serial 230322 of January.
(d) CSSF Serial 260502 of January.

Enclosure:
(A) Tabulated Logistic Data.
(B) General Document.

1. In accordance with reference (a) as modified by references (b), (c) and (d) observations were made of the following Atolls and Islands:

BIKAR ATOLL (4 January 1942)

Although not included in the area assigned, since it lay along the route, this atoll was observed primarily to determine general appearance and the distance from which those atolls were visible. The islands conformed to charts, were heavily wooded and showed no indication of being inhabited.

BIKINI ATOLL (6 January 1942)

Observed from the south and west. BIKINI and ENYU Islands are connected by an unbroken strand of sand several feet above water. There is a wooden tower near the southwest corner of BIKINI Island. A low conical tower is located on the southern tip of ENYU Is. There appeared to be several houses and one much larger building (50' x 150') on the lagoon side of the island. A comparatively high tower is located on ARIUKIIJI Is. All islands in general conform to charted contours as indicated by tangents, are well covered with palm trees. No ships or aircraft were seen.

RONGELAP ATOLL (7 January and 17 January 1942)

Observed from South Pass to Eastward then North and Northeastward to McIlul Is. A windmill is located near the center of the western reach of RONGELAP Is., a high observation tower is located just east of the reference point,

42 302
40069

- 1 -
ENCLOSURE (A)

— page 44 —
5427. With the exception of a break just north of RONGELAP Is., there is a continuous strand extending south from ENLAIDOKU Island which is mostly barren, but with scattered clumps of trees, which appears to extend to one half mile in width in places. There were indications of houses on the North, lagoons, shore of RONGELAP. No ships nor aircraft were seen. The islands were in general well covered with palm trees.

VOTHIO ATOLL (8 January)
Well wooded - no structures of any kind seen - No ships nor aircraft seen.

KWAJALEIN ATOLL
ROI Island and Northeastern Part. (9 January - 16 January).
Observed from north of ROI Island to northwest of MELLU Island. Few and scattered palm trees on western end of ROI Island, considerable number of buildings and one very high tower, other islands normally wooded and conformed to chart contours.

Three freighters were anchored in the lagoon south-west of ROI Island, two were estimated to be of 5,000 tons; single stack amidships, single cargo masts forward and aft, narrow bridge forward of stack; one estimated to be of 8,000 tons, modern, single stack amidships, low wide bridge forward of stack, two "goal post" type masts forward and two aft, cruiser stern, mair stern.

Nine bombers or petrol planes were seen in the air on easterly courses between 0750 and 1000. A formation of 3 light planes, and a single light plane were seen during the day.

At 1100 a diesel trawler, square stern, high "whale-boat" bow, with single stack and bridge amidships, about 100 ft. long with about 75 ft. foremast carrying crow's nest, stood out MELLU Island pass and commenced anti-submarine patrol. This vessel stood towards our position and forced us to retire several times during the afternoon and once after dark. From her actions it is believed that she was controlled by shore listening stations or sound buoys.

- 2 -

ENCLOSURE (A)

— page 45 —
1600 a larger vessel approached from the other side of the lagoon and anchored in the vicinity of those already present, she was very similar to the larger vessel described with somewhat more extensive superstructure which was painted white.

On 16 January one of the freighter's had departed and at least one destroyer was present.

KWJALONG Island and Southeastern Part (12-13 January)

Observed from south of KWJALONG, to East of EBEEYE Island on 12 January and to south of ENNYLABEGAN Island on 13 January.

There is evidence of considerable shore activity and building on KWJALONG and adjacent islands. Two very high radio towers are located on ENUBUJ Island. A single high lookout tower is located on the strand north of KWJALONG Island.

Five large ships were anchored in the southeastern corner of the lagoon. From the appearance of the tops, one of these was almost certainly the TOICWA, another had a bridge structure similar to CONGEI and a third, from the size of the booms, was judged to be an aircraft tender. Identification was difficult because of the low lying haze and the ships could only be seen almost stern on.

At 0930 a vessel was seen to stand out GEA Island Pass and was lost against the background of ENNYLABEGAN Island. It is probable that this was an anti-submarine vessel.

Some source of sound disturbance was located in position Lat. 8°-40'-15" Long. 167°-34'-40". Bearings were obtained on this on two successive days, from different positions and by different operators. This is probably a sound buoy since the noise is very similar to that heard off ROI Island.

No aircraft were seen in the air although it is believed that the depth charge attack on the afternoon of 13 January was made by aircraft.

UJAE ATOLL (14 January)

Observed from south and east of UJAE Island. Islands were well wooded, tangents conformed to charts, no ships in lagoon, no evidence of any activity seen.

- 3 -

ENCLOSURE (A)

— page 46 —
1. U.S.S. TAUTOG War Patrol

UTIRIK ATOLL (25 January)

Observed from 2 miles south of Southern Reef. There were several small thatched houses on the northwest side of UTIRIK Island, but no other evidence of activity. No ships or aircraft were sighted.

TACNGI ATOLL (29 January)

Observed from 2-1/2 miles east of SYBIIIA Island and from a position west of the reef. The islands were very low, heavily wooded, with low, bushy type trees. No evidence of habitation was seen. No ships nor aircraft were sighted.

2. On 11 January while attempting to locate KWAJALONG Island in very low visibility, and in position later determined to be 15 miles bearing 0700 from the island, high speed propeller noises were heard astern, bearing 1550T. At 0835 three Japanese submarines were sighted distant about 5,000 yards on westerly course at about 15 knots (300 RPM by sound). These vessels were in sight for less than one minute before being obscured by a rain squall. The nearer ship had three periscopes fully raised, was painted either black or very dark war color, and flew what appeared to be a very large ensign. Only one gun was seen which was mounted forward. Normal approach course was taken at high speed and the bow tubes were prepared for long range shots but when visibility again cleared only one submarine could be seen and the range was in excess of 10,000 yards. It is presumed that these submarines were standing towards KWAJALONG ATOLL.

On 13 January at 1115 after completing observations and while standing north to take patrol station to the westward of GEA Island Pass, KWAJALONG ATOLL, sighted masts of a vessel bearing 3480T standing towards the pass. From the height of, and the distance between masts, the vessel was judged to be a medium sized freighter. Immediately commenced approach to attack position at 6 knots on course 0300T. At 11-36-30, at an estimated range of 1800 yards, fired three torpedoes on 1100 track, spread .2-1/20, estimated target course was 1100T, estimated speed 7 knots. The setup tracked well on the data computer; on the final bearing check the generated bearing was within 2 degrees of the periscope bearing. Due to the proximity of the beach, about 2 miles and probable presence of anti-submarine craft echo ranges were not taken. Immediately after firing the first torpedo, speed was increased to 8 knots, depth increased to 150 feet and course changed, with full rudder to 2700T. Approximately one minute after firing the third torpedo the sound operator reported a hit; the torpedo officer and personnel stationed in the forward

— page 47 —
1. U.S.S. TAUTOG War Patrol

torpedo room reported a distinct detonation. This was described by the torpedo officer as "like a heavy muffled weight dropped into the bilges". Incident to the increase of speed and change of depth a very loud vibration was set up in the forward part of the conning tower fairwater, later discovered to be from the steering gear change valve rod, the noise from this prevented conning tower personnel hearing anything else. No explosion "Rumble" such as follows a depth charge detonation, was heard. After running four minutes at 8 knots slowed to 4 knots to listen for propellers; none were heard. At 11-46-10 a depth charge detonation was heard at 8 knots. Speed was immediately increased to 8 knots and maintained, except for short listening periods until 12:10. Subsequent depth charges were heard at 11-48-10, 11-51-40, 11-52-45, 11-55-15, 12-01-10, 12-03-20, 12-08-05 and 12-09-25. From timing the interval between the detonation "click" and the sound of the explosion a very good estimate of the distance could be made. While these intervals were not recorded the distance estimated varied from over 3,000 yards for numbers 4 and 5 to less than 1,000 yards for number 9. It is possible that a ship previously sighted in GHA Island Pass made the attack but from the absence of propeller noises and the comparatively long and irregular intervals and distances between charges it was considered at the time that the charges were being dropped by aircraft. On hearing the first charge, depth was increased to 200 feet, where a temperature differential of 4° was found. Wasterly courses were continued at quiet running speeds with all non-vital auxiliary machinery stopped until well clear. Propeller noises, assumed to be a destroyer, were heard to westward about 1225 and passed an estimated 1,000 yards to the northwest about 1235; obviously no sound contact was by this ship. The ship fired at two masses were comparatively high for the size ship and located well forward and aft, a comparatively large crowd's nest was on the foremast. A single, low stack was located near the bridge; at least two guns were mounted, the forward one protected by a shield. She was painted light war color, flew the Japanese naval ensign and had what appeared to be numbers "91" painted in white just below the bridge. It was not considered advisable to verify the hit.

On 18 January at 1215, when about 6 miles west of BEADON Island echo ranging "ping" were heard bearing 2200T, course was changed to 180° and considerable periscope was exposed but no vessels could be sighted. The strength of the signals gradually became less, and after about 1240 they were no longer audible; they were last heard on approximately 1900 True. The signals were never very loud but were definitely from either echo ranging or fathometer equipment; they could only be heard with the receiver turned to 24 kilocycles.

- 5 -

ENCLOSURE (A)

— page 48 —
1. The exception of anti-submarine patrol craft and vessels anchored inside KWAJALJELIN REEF the above wore the only contacts with enemy vessels during the patrol.

4. Patrol endurance was limited by potable water capacity. Increased consumption due to higher temperatures and long submerged periods, shorter time on the surface for distilling, necessity for running engines at reduced power to reduce exhaust noise and sparking, and the inadvisability of using high surface speeds due to sea and visibility conditions generally prevalent throughout the area all contributed to this reduced endurance. The main engine exhaust noise and sparking constitute a military hazard which will be overcome with the installation of wet type mufflers. It is considered equally important to silence vital auxiliary machinery. Effectiveness was considerably reduced during the latter part of the patrol by both periscopes becoming fogged. The reason for this condition is not known; both periscopes were dried out the day before departure.

5. The necessity for making land falls on low-lying islands adjacent to unmarked reefs with minimum periscope exposure presents a most exciting navigation problem which was made difficult by strong and uncertain currents and generally poor visibility conditions. The hazards, if not greater than from enemy action, were at least more consistently present. The commanding officer considers that the Navigator, Lieutenant E. S. Carrick, U.S.N., is deserving of commendation for the pertinacity and skill with which he accomplished his task.

J. H. WILLINGHAM; Jr.

— page 49 —
26 27 28 29 30 31 2f

Hours Surface: 23.1 23.6 23.5 23.1 24.3 23.7 11.5
Miles Surface: 185.6 252.5 260.1 252.4 270.0 261.8 124.4
Hours Submerged: 9 9 9 9 9 7 3 12.5
Miles Submerged: 4.9 6.0 3.0 3.0 2.8 1.0 33.3
Fuel Used: 2790 2130 1925 2015 2225 2005 1275
Potable Water Made: 380 445 565 620 612 705 220
Potable Water Used: 730 445 565 470 710 605 420
Battery Water Made: 0 0 0 0 0 0 28
Battery Water Used: 0 0 0 0 0 0 200

*Departed Pearl on: 26 December
*First all day submerged patrol.

| Date | Hours Surface | Miles Surface | Hours Submerged | Miles Submerged | Fuel Used | Potable Water Made | Potable Water Used | Battery Water Made | Battery Water Used |
|------| 26   | 13.3          | 154.8          | 11.7           | 3.3            | 1770       | 320              | 320              | 950              | 0              |
| 27   | 10.9          | 126.8          | 13.1           | 4.3            | 1375       | 320              | 320              | 950              | 0              |
| 28   | 10.8          | 113.6          | 13.2           | 4.3            | 1375       | 320              | 320              | 950              | 0              |
| 29   | 9.8           | 111.3          | 13.2           | 3.4            | 1375       | 320              | 320              | 950              | 0              |
| 30   | 10.4          | 116.0          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 31   | 10.9          | 110.0          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 1    | 9.5           | 105.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 2    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 3    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 4    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 5    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 6    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 7    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 8    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 9    | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 10   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 11   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 12   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 13   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 14   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 15   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 16   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 17   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 18   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 19   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 20   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 21   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 22   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 23   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 24   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 25   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 26   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 27   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 28   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 29   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 30   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 31   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 32   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 33   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 34   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 35   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 36   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 37   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 38   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 39   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 40   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 41   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 42   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 43   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 44   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 45   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 46   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 47   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 48   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 49   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 50   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 51   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 52   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 53   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 54   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 55   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 56   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 57   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 58   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 59   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 60   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 61   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 62   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 63   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 64   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 65   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 66   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 67   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 68   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 69   | 7.8           | 100.7          | 13.6           | 4.6            | 1375       | 320              | 320              | 950              | 0              |
| 70   | 7.8           | 100.7          | 13.6           |

— page 50 —
17 : 18 : 19 : 20 : 21 : 22 : 23 :
Hours Surface ...... 10.1: 10.0: 9.6: 9.7: 9.4: 9.8: 9.6:
Hours Submerged ...... 13.9: 14.0: 14.4: 14.3: 14.6: 14.2: 14.4:
Miles Submerged ...... 47.7: 47.7: 40.6: 39.6: 41.6: 39.5: 39.2:
Fuel Used ...... 1005: 1125: 1230: 1275: 1255: 920: 1030:
Potable Water Made ...... 205: 180: 280: 250: 180: 245: 120:
Potable Water Used ...... 305: 417: 380: 450: 280: 345: 320:
Battery Water Made ...... 25: 25: 12.5: 30: 30: 12.5: 30:
Battery Water Used ...... 0: 0: 0: 275: 0: 0: 0:

January

: 24 : 25 : 26 : 27 : 28 : 29 : 30 :
Hours Surface ...... 10.1: 10.1: 10.1: 10.5: 10.2: 10.1: 11.1:
Hours Submerged ...... 117.6:118.2: 123.6:132.6:123.0:119.4:146.5:
Miles Submerged ...... 13.9: 13.9: 13.9: 13.5: 13.8: 13.9: 12.9:
Fuel Used ...... 45.4: 40.9: 36.3: 35.3: 38.0: 43.0: 40.8:
Potable Water Made ...... 1615: 1725: 1685: 1670: 1400: 1560: 2085:
Potable Water Used ...... 300: 330: 340: 260: 210: 240: 445:
Battery Water Made ...... 300: 330: 340: 360: 310: 240: 245:
Battery Water Used ...... 27.5: 30: 27.5: 27.5: 27.5: 25: 42.5:
Battery Water Used ...... 0: 308: 0: 0: 0: 0: 0:

January

: 31 : 31 : 1 : 2 : 3 : 4 :
Hours Surface ...... 24.0: 21.1: 22.4: 23.0: 23.5: 12.0:
Hours Submerged ...... 347.5: 297.5: 318.9: 347.0: 346.0: 85.0:
Miles Submerged ...... 0.0: 1.9: 1.6: 0.0: 0: 0:
Fuel Used ...... 4.7: 4.5: 5.6: 0.0: 0: 0:
Potable Water Made ...... 1165: 4736: 4340: 4550: 4600: 1105:
Potable Water Used ...... 328: 670: 1134: 1130: 1100: 300:
Battery Water Made ...... 0: 0: 0: 0: 0: 0:
Battery Water Used ...... 0: 0: 0: 0: 0: 0:

- 8 -

ENCLOSURE (A)

— page 51 —
1945
: 730
: 14023
: 1480
: 300
: 12223
: 4.9
: 85830
: 2125
: $0.85
: 6.4
: 97
: 83.3
: 92.7

ENCLOSURE (a)

- 9 -

— page 52 —
10

ENCLOSURE (A)

---

**U.S.S. TAUTOG, WAR PATROL**

**ENCLOSURE (B)**

**GENERAL COMMITTEE**

**LATITUDE FAILURES.**

On 11 January after blowing negative tank on the morning dive, a leak between this tank and No. 2 Main Ballast tank was discovered. It is believed that this is the result of a gasket failure in the negative tank blow line since a gasket in this line, inside the ship, had failed previously. This leak resulted in negative gradually filling with water and air leaking out of No. 2 M.B.T. vent until the pressure had equalized with about 14,000 lbs. of water in negative.

Two leaks developed in the hydraulic system, in the supply line to the starboard safety flocculent operating piston and in the return line from number one Main Ballast Tank vent operating piston. Both leaks were in silver scaldered joints, near the operating gear, where the size tubing is reduced. The first leak was repaired by silver soldering, the second, because it was inaccessible, was temporarily repaired by binding with copper wire and applying soft solder.

Commencing on 12 January, both periscopes became forged. At first a very slight fogging was noticed in high power when the periscope was first raised, particularly when looking away from the wind. By 18 January both periscopes forged so badly that they were unusable in high power. Repeated attempts were made to improve the condition of the attack periscope by circulating nitrogen without success. Later, when operating to the northward, the condition of the periscopes improved, however, they were completely unsatisfactory for use in the wash condition, requiring considerable time completely cut of the water to clear.

On 23 January the J.K. sound receiver went dead. Investigation showed that the leads to the head had opened due to internal wear incident to the practically continuous training of the head over a long period. This cable was repaired by splicing. Both cables to the J.K. head were found to be in - - practically the same condition and were renewed.

On 26 January the power supply transformer for the RAK radio receiver failed. No spare was on board so that in order to maintain guard on the SAIL schedule it was necessary to use the RAK power supply for the RAK receiver.

- 10 -

— page 54 —
29 December Commander Task Force's Serial 300300 of December was received. Several attempts were made to acknowledge this despatch over the submarine circuit (4155 KG band) without success. Prior to departure on patrol the communication officer had been instructed not to use a preliminary call preceeding a transmission but instead to send the call and dispatch as one transmission. This procedure is considered essential to minimize chances for obtaining RDF bearings since the preliminary call up, with the usual accompanying "Z" signals, constitutes an invitation to the enemy RDF station to "tune in" for the transmission which is to follow. Acknowledgment of the above despatch and two subsequent despatches were transmitted over the Island Area Circuit (Shore Station Circuit 6-4265 Kcs series) to NPM Honolulu with no preliminary call and a consequent very short transmission time. Subsequent transmissions by this method were not accepted; but the procedure of calling both Radic Honolulu and Radio Midway (NQM), repeating each call twice - resulted in a call back on 7 dispatches within a period of under 10 seconds. During no transmission was this vessel required to wait to transmit and only during two dispatches were operator's procedure signals used - in spite of low signal strength and enemy interference. The operators guarding this circuit are highly competent and stand a commendable alert watch, which greatly adds to the safety of a transmitting vessel when within enemy waters. Since the frequencies used on this circuit and the submarine circuit are within the same frequency band it would appear the results obtained were due largely to the competent and alert receiver watch maintained by NPM.

- 12 -

ENCLOSURE (A)

— page 55 —
1/2/1942
A16-3
Serial 040
UNITED STATES PACIFIC FLEET,
SUBMARINES, PACIFIC FLEET,
U.S.S. TAUTOG, Flagship
U.S.S. PELIAS (AS14),
February 5, 1942.

SECOND ENDORSEMENT to
TAUTOG's Patrol Report
SS199/A16 Ser (01) of 2/4/42.

From: The Commander Submarine Squadron Six.
To: The Commander Submarines, Pacific Fleet.

Subject: Patrol Report - U.S.S. TAUTOG (SS199).

1. Forwarded, concurring in the comments contained in the first endorsement.

2. It is probable that the TAUTOG scored at least one hit on a freighter in addition to the accomplishment of her primary reconnaissance mission.

3. The material defects mentioned in the report will be corrected either by the repair facilities of the PELIAS during the forthcoming week or by Navy Yard Mare Island at the scheduled overhaul commencing February 18, 1942. It is anticipated that number 2 and 3 main engines will be given the routine 1500 hour overhaul prior to departure of TAUTOG from this area.

4. It is noted that allowance lists do not provide for spare transformers for either the radio receivers or the sound equipment. It is recommended that a spare transformer for both the radio receivers and the echo ranging equipment be carried on board during patrols. Recommendations for revisions in allowance lists involving the aforementioned parts are being made the subject of supplementary correspondence.

5. Commander Submarine Squadron Six considers that the Commanding Officer and Navigator are deserving of commendation for the admirable ship control involved in reconnaissance operations while approaching reefs and treacherous waters in the afore-mentioned patrol area.

A. R. McCAIN.

Copy to:
Comsubdiv 61,
CO TAUTOG.

-1- ENCLOSURE (B)

— page 56 —
1. The Commander Submarine Division SIXTY-ONE, The Commander Submarines, Pacific Fleet. The Commander Submarine Squadron SIX.

2. The following comments are considered pertinent in connection with the subject report:

(A) INTELLIGENCE.

It is noted that observations of eight atolls revealed only one to be of appreciable military importance, namely the islands of the IWAJALEN Group. It is considered that the observations conducted on the aforementioned objectives, in spite of air and sea patrols and lack of reliable navigational land marks demonstrated unusual ability on the part of the Commanding Officer and Navigator.

(B) TORPEDOES.

The Division Commander views with considerable apprehension the persistent vulnerability of torpedo afterbodies to flooding in the tubes in spite of recent innovations and procedures.

The Division Commander although acknowledging that some hazards exist in conducting routines on torpedoes while on the surface does not concur in the Commanding Officer's assertion that this procedure is too hazardous to accept. It is considered the greatest hazard to a submarine exists when an attack fails because of erratic torpedo performance, and the most effective measure to prevent casualties of this nature is a thorough and comprehensive routine intelligently followed.

- 1 -

ENCLOSURE (C)

— page 59 —
12-10/AL6-3(5)  SUBMARINE, PACIFIC ISLET
Serial 0172
CONSULPTED PATROL REPORT NO. 10
TAUTOG FIRST MAN RATOL
DECLASSIFIED

From: The Commander's submarines, Pacific Fleet.
To: Submarines, Pacific Fleet.

Subject: U.S.S. TAUTOG (SS-199) war patrol - report of.

1. The TAUTOG patrol was of forty-one days duration, from base to base, twenty-six days of which were spent on station in the Marshall Islands on reconnaissance patrol. TAUTOG patrolled the Northeastern Marshall Islands and furnished very intelligent and important reports of the atolls observed. This was done under almost continuous air threat and was fraught with many navigational difficulties. The TAUTOG did an excellent job.

2. It is regretted that visibility conditions frustrated an attack on three enemy submarines near Iwo Jima. The attack on an enemy medium-sized freighter on 13 January is credited as a possible hit, but in view of the lack of any positive evidence, TAUTOG is not credited with inflicting loss on the enemy. The use of three torpedoes on a target of this size and speed is excessive.

3. The Commander Submarines, Pacific Fleet, concurs in the remarks of the Squadron and Division Commander regarding material.

DISTRIBUTION:
Pacific List 7Cla-4L:
List I, Case 2: Pl(5); SSM.
Atlantic List 11Cla-4L: SO(2).
Asiatic List: Consubar (2)
Special: 3N3(5); 3N10(1); 3N28(5);
MD14(2); NYI(1); NY9(1);
NY10(2); Subschool, NL (8).

E. M. SWINBURNE,
Flag Secretary.

— page 62 —
0721(L)
Sihted small freighter at anchor inside the reef. Stood south then west, paralleling the reef two to three miles distant.

1250(L) Sihted Japanese type 96 petrol bombes south of AIRK II. Continued northwest and established periscope patrol off MINUM CRUISER.

1925(L) Surfaced, stood from reef then patrolled across MINUM CRUISER. All islands were completely blocked out during darkness.

1. Key, 1942
   - Sighted smoke of a vessel to northward, ran at 6 knots to intercept but vessel entered lagoon before range could be closed.

1616(L) Sihted two massed schoolers inside lagoon standing to northward.

6 May, 1942 Received orders to proceed to MINUM, increased speed and stood to westward. |

— page 63 —
2 May, 1942

0055(1) Island boats, 2350 tons, completely blocked out, and passed to northward. Received several despatches concerning the OCEAN station but could not identify the result, however, in view of possible reinforcements expected, the CO-cidied that our report arrived on station, and accepted the report as correct. The surface through the day at 15 knots. Our air run, in this case, carried down the sea very uncomfortable due to visibility caused by generally unfavorable cloud formations and numerous rain squalls.

10 May, 1942

0400(1) Made landfall on SOUTH IS., at 12:00 A.M. and had a good forward view.

0524(1) Submerged and continued northward, struck a deep depth. Identified the islands of OCEAN, TOR, and, and.

0900(1) Sighted patrol vessel 5.52 miles south of, apparently stationary but still showing OWL, and

— page 64 —
16 May, 1942

0700 (J) Sifted two leadish shiploads of a column of 4 destroyers, increased speed and came to course to intercept it, once they were screening heavy craft. The destroyers at a speed so that the last ship in column passed almost over us, forced us to decoy submarine once. To other vessels were in company. Continued periscope patrol.

1303 (J) Si htd lar c firehter to conduct, made periscope attack and fired two torpedoes. The first torpedo ran circular forci to decoy submarine, the second hit the tar at, which backed on ROT. LIST Rear. After observing the torpedoes, the torpedo was fired. The submarine at full speed was overcast. It was quickly realized that the sound operator had actually heard the sound of our own torpedoes, and immediately sent us the information that the submarine had been torpedoed. The submarine was at a depth of 15 feet, and the torpedoes were fired at a speed of 150 ft. Immediately after the torpedoes were fired, the submarine was at a depth of 150 feet, and the torpedoes were fired at a speed of 150 ft. The submarine was at a depth of 150 feet, and the torpedoes were fired

— page 66 —
23 May, 1942

0104(J) The surface search was discontinued and the steamer withdrew. Surfaced ran south at 15 knots in an attempt to intercept at daylit. It remained on the surface until one hour after daylit, then, in view of the probable air search as result of last night's attack, submerged and continued periscope patrol. Since the "were over 100 miles from TRU. and considering that our area would probably be deadened for several days because of our activity, decided to continue research. A despatched was sent informant. QMSubPac of this and our damage done to date. Man at 15 knots through hour the night to close this area of this reconnaissance.

24 May, 1942

0643(J) Si had unidentified plane to patrol or northerly course. The quick dive in the side to continue submerging the remainder of the day to avoid the possibility of reversals over the area.

25 May, 1942

1631(J) Continued search for enemy aircraft. The air patrol was not active.

— page 67 —
30-31 May, 1942
Continued between SAVAGE ISLAND and CRITICAL BATTLE through the night. IDIOLO PASSAGE. Ran submerged in the TAILOR SEA during daylight. Entered CERRAN SEA passing to eastward of TORALIA IS., ran submerged there during daylight and then through MAITAP STRAIT into the TAILOR SEA. Both in TAILOR SEA and CERRAN SEA the surface of the water was smooth and unrippled. At night the moonlit was brilliant and surface runnina was done well trimmed down.

1 June, 1942
Ran submerged during daylight and on surface at night. At 2034, with the eastern sky very light from the rising moon, we were directly illuminated by an air craft. Cloaked close aboard to starboard. Submerged to 150 feet; returned to portage. Cape depth and could see no further light but in view of the proximity of the air base at 2000 feet. Remained submerged for two hours. On surfacing continued south without further incident.

2 June, 1942
Although the sea cycled to patrol in the TAILOR SEA for two or possibly three days. Depths of 150 feet. On surface not too near the coast. On surface not

— page 69 —
16 May 0700 J
16 May 1308 J
17 May 0534 J
17 May 1050 J
22 May 0723 J
22 May 0742 J
22 May 0307 J
22 May 0307 J
22 May 1750 J
22 May 1305 J
22 May 1631 J

Type: Ditto
Course: 0100
Sq. d: 3300
Sp. d: 13
Position: South of TRU.

10.

— page 70 —
25 April 0825
: 25 April 1340
: 25 April 1132
: 25 April 1330
: 3 May 0910
: 3 May 1250
: 14 May 1320
: 24 May 0644
: 1 June 2034

7. PARTS OF THE REPORT:
   - Title: "PARITIOUS OF AYOLAB"
   - Date: "Trial: 25 April 0825"
   - Location: "South of TRUK"
   - Personnel: "Japanese 96"
   - Type of Report: "Attack No. 1"
   - Notes:
     - "Japanese 96"
     - "Lendalano"
     - "Japanese 97"
     - "Seapine"
     - "Japanese 1 L-25 N"
     - "Unidentified"
     - "B-24D"
     - "SEA Destroyer Flare"
     - "Attached No. 1."

At 1025 (?) 26 April, 1942 while proceeding on the surface, a patrol torpedo attack (TANSTAR) was reported. The submarine was torpedoed by the enemy's torpedo boat, which was torpedoed by the enemy's torpedo boat. The torpedo boat was torpedoed by the enemy's

— page 72 —
5-12-1942
At 1800, 22 May, 1942 while at periscope depth about 3 miles south of OLLAN IS., TRUK and patrolling the water approaches to ULITAURO and OTTA PASSIS sighted two fire!-ters which had departed TRUK to the southward. The lar.er fire!-titer had four tubular masts and resembled the German LUMN class, she was very deeply laden as indicated by low freeboard. The smaller fire!-titer looked modern with comparatively light hulls fire!-board, ranle staccat, and two coal post masts. The vessels stood south, in column, the smaller leaclin; we also ran south at six knots in order to open TRUK as much as possible. . . . At 1244, -with only the tops of the after vessel in sight, surfaced and trailed to determine course and speed then increased speed and ran on various courses to gain position ahead. Visual contact was maintained most of the time but this was difficult due to darkness and very visibility in the moonlit. At 2340 submerged to make periscope attack from westward into the moon. Shortly afterwards the moon was completely blacked out by clouds but since we were fairly close ahead decided to continue the approach by sound. Course was changed to west in order to strike the stern tubes to bear and to view the sound operators at better bearing for listening. Be- cause of the greatly uncertain weather and the thick, thick rain, by the time the first sound range was obtained it was too late to close. Since this sound range was becoming too close to the surface, the sound range was closed and the torpedo at the lar.er vessel on the assumption that it missed it would almost certainly be unobserved and a later surface attack could be made. Through boat the run of the torpedo continuous bearings were obtained on the torpedo and crashed ship's propellars, the quartermaster called out a second stop watch time, and exactly at the predicted time the hit was heard. This shock and noise!-thick was stopped on the hit and about 10 seconds later there was a second, more violent explosion. Four brilliant orange flashes were seen through the periscope but neither ship could be made out. Five minutes after the hit water and air noises and the sound of the ship's quartermaster's callousness as she sent were heard. The ship in company continued to surface search at 15 knots (by KPI) which lasted until 0040 but she did not maintain any course sufficiently long to permit an attack.

-12-

— page 74 —
6. Attach file.

While cruising on the surface, on 10th July, 1942, the O.O.D. (Lt. Conde., CAPT. K.) sighted smoke on the horizon to the south and changed course to 190° to investigate, increasing speed to 17 knots. Made out the upper works of a freighter on north-westerly course and commenced steering various vessels. During the course of the day, the ship was in a position ahead. During the squalls and the steamer was frequently obscured for considerable periods but she usually assisted by making smoke. At 1433, in order to complete the attack before darkness, came to course north-west to the track and continued the approach submarine. At 1930 and fired second torpedo which hit just forward of the bridge, lifting the contents of the forward hold and the forward hatch into the air. Six minutes later the stern stood straight up and the ship sank. The ship was a three inches length, straight bow, counter stern, single rather high stack, two masts, about 400-425 feet long and similar in general appearance to the U.S. A.U.

8. Enter ATTSU-SUBSHIP LIST OF ASSAULTS.

An anti-submarine patrol was maintained south of TUNIS westward. The vessel normally maintaining this patrol was about 100 feet long and had two comparatively high masts each with a large lookout platform. The general appearance of the hull was very similar to our net tending vessels. The numbers 582 were painted in white on her bridge. A second vessel, sighted only once, was estimated to be 800 to 1000 tons displacement. She had very scarce lines, one fairly tall stack and a typical masts with large crow's nests. Both vessels used echo ranging on approximately 24 k.c.s. In addition there were a great many small diesel sampans in the area which it was necessary to evade. While no attacks were made by these vessels they imposed considerable hardship by forcing us to operate for considerable periods with all artillery machinery including ventilation and air conditioning, stopped.

9. MAJOR DETECTORS REPORTED.

(a) Due to the hum of the main motors and excessive noise made by bow and stern plane chaffing this vessel is unable to run quietly. The entire bow and stern plane chaffing systems were completely overhauled and cleaned by MIT before the start of this patrol and operated quietly for about two weeks. It appears that misalignment caused by hull distortion at various depths resulted in rapid wear of coupling and bearings and increasingly noisy operation.

(b) The coming tower attack was postponed (Fig. 2) continued to be considerably, this tended to increase the time of per-

-13-

— page 75 —
11. SOUND CONDITIONS AND DENSITY LAYERS.

No density layers were encountered and no appreciable temperature gradients were discovered between periscope depth and 150 feet. Echo ranging was attempted only twice, (Lt 07-00 H, Long 159-28 E and Lat 4-07 N, Long 143-32 E) ranges were obtained. It appeared that the sound was in a rough case. Listening conditions were good to poor in the TRUCK area, varying with the distance from the boat. The air was listening conditions were uniformly very good to excellent. The sound was considerably annoyed by fish noises throughout the patrol and particularly by a whale which followed us through HALLHEAD and CHAIN SEAS.

12. HEALTH AND EMERGENCIES.

The health of officers and crew was generally good. Minor ailments showed a decrease below the last patrol. Conspiration, in particular, was well below the usual rate. A case of bronchitis resulting in three men-deg was the only loss of time due to sickness. There was, however, much serious discomfort and loss of sleep caused by prickly heat which affected over ninety percent of the crew. The other serious variety of condition of health is attributed mainly to a well balanced diet and a regular meal routine. However, the ship's officers, privates, and seamen were all in good health. The temperature in the ship during the day was 92°F, with a relative humidity of about 70%. Particularly bad were the ear infections and the battery problems. The ship's battery was in good condition, and the batteries were in good condition. The ship's batteries

— page 76 —
14. At the time of departure from the RUK area personnel were worn down from the strenuous patrol and the enervating effect of high temperature and humidity during submerged periods, more rigorous because of the frequent necessity for silent running. After the tranquil passage to the westward, patrol could have been continued for ten days readily.

15. CRITERIA CONCERNING:
   (a) With minor exceptions the entire submerged portion of this patrol was run at periscope depth with not more than 10 minutes' sleeping between consecutive observations. As a possible result officers, who at the start of the patrol averaged zero to minus one for correct binocular focus, ended the patrol using minus two to minus four.

   (b) While surface patrol will undoubtedly be more productive of results; because of varying visibility conditions due to clouds, rain squalls and sun glare there is a definite hazard involved and the resultant strain on officers and lookouts and the general tension among the crew will at least make this unpopular. With a RAR which could be relied on to give warning of every plane approaching even when only five miles distant, surface patrol would be feasible up to visual range of enemy bases.

   (c) During this and the previous patrol every Japanese vessel observed entering or leaving a channel has invariably skirted the reef for several miles adjacent to the channel entrance instead of following a direct course. Consequently a submarine patroling directly in line with the entrance, if sufficiently distant to permit reasonable freedom in periscope use, will be unable to close a considerable number of ships sighted to an advantageous firing range. Other disadvantages of this apparent obvious position for patrol are frequent appearance of the anti-submarine vessels, possible underwater listening devices, interference with or sound equipment by surf noises and excessive use of power made necessary by the strong currents encountered. A patrol station across a traffic lane is believed to be preferable in most cases; if the line is definitely established there are many advantages of not patrolling too close in.

   (d) Traffic lanes approaching southern entrances to RUK are:
   From South: From SOUTH ISLAND, close along southwest reef of ROYALIST TOLL.
   From 'west: South of OLLAI IS, then close along the southern reef of TRUK.

-16-

— page 77 —
2. The successful destruction of the enemy submarine on April 26 resulted from the exercise of initiative and instinct. A critical torpedo room crew, under the direction of the hospital ship, was able to destroy the Japanese torpedo boat. The hospital ship was not equipped with a torpedo boat, but it was equipped with a torpedo boat. The

— page 78 —
35199/16
Serial (01)
DECLASSIFIED

From: The Commander, Officer.
To: The Commander in Chief, U.S. Fleet.
Via: Critical Channel.

Subject: War Diary (3rd War Patrol Report).

MELOSURE: (1) War Diary, Period July 17, 1942 to September 10, 1942.

1. The contents of the report are as follows:
   - [Text of report content here]
   - [

— page 80 —
1. USS, 1942

1.1200 Lat. 20-20 S. Long. 115-32 N.
1.123 At point changed course to 005°N.
1.137 Ceased at -2°N, 1°E, slowed to 111 knots on one
    course.
2.2000 Lat. 19-05 S. Long. 114-13 E.
    Distance run - 270.5 miles.
    Fuel used - 3120 Gals.

21 July 1942

Continuing on base course 005° at 11 knots.

0702 Lade quick dive to air subkurs and during depth, hit
    depth within 200 miles of enemy base.
    Lat. 12-07 S. Long. 115-12 E.
1130 Head noises over sound of our light wounded like
    propellers (30 r.p.m.) and doubled in in bear-
    ing 100°C. Ran silent; could see nothing with
    periscope. At 1135 noises no low Cm. head.
1200 Lat. 11-57 S. Long. 115-12 E.
1135 Depth. Ran clear. Head sounded (14 knots)
    on 2 peal engines on course 005°.
2000 Lat. 11-30 S. Long. 115-15 E.
2100 Clear at course to 011°N.
    Distance run - 212.0 miles.
    Fuel used - 2505 Gals.

22 July 1942

Continuing on base course 011° at 11 knots ap-
    proximately on the entrance to the Gulf Stream.

-3-

— page 82 —
21.24 Surfaced. Set course to follow established lane at standard speed, 12 knots.
Distance run - 50.3 miles.
Fuel used - 96.5 gallons.

18 July 1942

Lat: 29-55 S. Long: 113-43 T.
Lat: 29-56 S. Long: 113-16 T.
Lat: 29-58 S. Long: 112-57 T.
The exhaust valve of a unit of the auxiliary engine dropped into the cylinder, creating a spark. Spares were not on board because they were unavailable on this station.
Distance run - 301.7 miles.
Fuel used - 2300 gallons.

19 July 1942

Continuing along bombarding lane as before and continued giving and training exercises.

0730 Cleared northern limit of lane and set course 000°T.
0830 Lat: 25-25 S. Long: 112-28 T.
1200 Lat: 24-45 S. Long: 112-25 T.
Cleared base course to 015°T.
1641 Changed speed to 11 knots and shifted to one engine.
2000 Lat: 23-13 S. Long: 112-54 T.
Distance run - 310.5 miles.
Fuel used - 3050 gallons.

20 July 1942

Continuing on base course 015°T at 11 knots.
Continued training exercises at exercises.

0612 Commenced zig-zag run, increased speed to 13 knots at 2 circles.
0300 Lat: 21-03 S. Long: 112-27 T.

— page 83 —
1200 1st. 20-20 S. Lon. 113-32 d.
: 1523 At point changed course to 003°01.
: 1637 Ceased at 2°00' S., cleared to 11 knots on one
: 2000 Lat. 19-05 S. Lon. 114-13 E.
: Distance run - 279. Miles.
: Fuel used - 3120 Cals.

21. July 1942

Continuing on base course 003°01 at 11 knots.
: 0300 Lat. 14-09 S. Lon. 114-31 E.
: 1200 Lat. 14-09 S. Lon. 114-43 E.
: 1850 Ceased at 2°00' S., 115-06 E.
: 2000 Lat. 15-30 S. Lon. 115-06 E.
: Distance run - 302. Miles.
: Fuel used - 3055 Cals.

22. July 1942

Continuing on base course 003°01 at 11 knots.
: 0702 1st. 20-20 S. Lon. 113-12 d.
: 0800 Lat. 12-07 S. Lon. 113-12 E.
: 1130 1st. 12-07 S. Lon. 113-12 E.
: 1200 Lat. 11-57 S. Lon. 113-12 E.
: 1355 1st. 11-57 S. Lon. 113-12 E.
: 2000 Lat. 11-30 S. Lon. 113-12 E.
: 2100 1st. 11-30 S. Lon. 113-12 E.
: Distance run - 213.0 Miles.
: Fuel used - 2555 Cals.

23. July 1942

Continuing on base course 011°01 at 11 knots approximately southwest of the island.

-3-

— page 84 —
0515 Made quiet dive, ran rather out through the day on northerly courses at 5 knots maintaining position south of the attack position. The round-tails of 10.00. 12.15 and 13.15 were visible until mid-afternoon when they were obscured by mist.
416.30.

— page 86 —
0000
Sighted submarine bearing 0.00°D distant about 5,000 yards on opposite parallel course. Made quick dive.
: 0053
Surfaced and continued on to report course and speed.
: 0527
Made quick dive and returned to periscope depth.
: 0651
Sighted two-tossed schooner near 24°F. Slight
4-5 miles.
: 0800
Lat. 05-35N 6. Long. 114-03W 7.
: 0940
Sighted course to 065°.
: 1200
Lat. 04-25N 7. Long. 114-23W 8.
: 1358
Surfaced, went ahead. Towed course towards Ailsa Channel.
: 2000
Set course 340°.
: 2250
Sighted what appeared to be a small submarine.
: 2350
Lat. 20°N distant about 4 miles on a southerly course. The bearing was 174°.
: 2450
Distance run - 1740.7 miles.
: 2550
Fuel used - 1490 gallons.

27 July 1942

: 0000
Sighted submarine bearing 0.00°D distant about 5,000 yards on opposite parallel course. Made quick dive.
: 0053
Surfaced and continued on to report course and speed.
: 0527
Made quick dive and returned to periscope depth.
: 0651
Sighted two-tossed schooner near 24°F. Slight
4-5 miles.
: 0800
Lat. 05-35N 6. Long. 114-03W 7.
: 0940
Sighted course to 065°.
: 1200
Lat. 04-25N 7. Long. 114-23W 8.
: 1358
Surfaced, went ahead. Towed course towards Ailsa Channel.
: 2000
Set course 340°.
: 2250
Sighted what appeared to be a small submarine.
: 2350
Lat. 20°N distant about 4 miles on a southerly course. The bearing was 174°.
: 2450
Distance run - 1740.7 miles.
: 2550
Fuel used - 1490 gallons.

27 July 1942

: 0000
Sighted submarine bearing 0.00°D distant about 5,000 yards on opposite parallel course. Made quick dive.
: 0053
Surfaced and continued on to report course and speed.
: 0527
Made quick dive and returned to periscope depth.
: 0651
Sighted two-tossed schooner near 24°F. Slight
4-5 miles.
: 0800
Lat. 05-35N 6. Long. 114-03W 7.
: 0940
Sighted course to 065°.
: 1200
Lat. 04-25N 7. Long. 114-23W 8.
: 1358
Surfaced, went ahead. Towed course towards Ailsa Channel.
: 2000
Set course 340°.
: 2250
Sighted what appeared to be a small submarine.
: 2350
Lat. 20°N distant about 4 miles on a southerly course. The bearing was 174°.
: 2450
Distance run - 1740.7 miles.
: 2550
Fuel used - 1490 gallons.

-6-

— page 87 —
2345
    Sunked. Vessel attacked near mid-ocean at 15 knots.
    Born on. Continued on course 345°T.
    Distance run - 156.9 miles.
    Fuel used - 1700 tons.

20 July 1942

Standard through 1st quarter of course 2450
at 15 knots.

0521
    Taked after dive. Clamped course to 0150T.
    Lat. 00-48°T. Long. 119-19T.
    Lat. 00-53T. Long. 119-22T.
    Surface. Sat course 0150 at 12 knots. Intercepted
    OWL 55°T.
    Lat. 01-16T. Long. 116-27T.
    Distance run - 175.5 miles.
    Fuel used - 144.5 tons.

20 July 1942

Passing through 1st quarter of course 0150 at
12 knots.

0520
    Taked after dive, continued submerged at 0 on course
    0000T.
    Lat. 03-12T. Long. 119-52T.
    Lat. 03-24T. Long. 119-52T.
    Surface and stood course 1°T.
    Lat. 03-55T. Long. 119-52T.
    Distance run - 153.5 miles.
    Fuel used - 975 tons.

20 July 1942

Stern: torpedoes 3.5 miles at 5.5T on vertical
course at 12 knots.

0134
    Sunked speed to 15 knots.
0215
    Intercepted BUDDY FUSELAGE. Intercepted speed to 17
    knots. Reported a southeast at 2 knots
    while in position.

0330
    Sunked position, sat course 0150T.
0514
    Taked after dive. Commander personnel report
    east of 2nd U.S.S.R.

-7-

— page 88 —
0800 Lat. 05-30 N. Lon. 119-45 W.
: 1350 Burrowed and went cleared at 15 knots on course 024°T
: 2000 Lat. 06-05 N. Lon. 119-54 W.
: 2100 Tied increased rapidly to scale velocity with heavy rain and zero visibility. Sloared and turned sound gear.
: 2105 Tied and ran radio operated, sky cleared. Resumed speed.
: 2150 Distances run - 104.7 miles.
: 2200 Fuel used - 1500 lbs.

21 July 1942

Standing north through 35°N 50°W on course 024°T at 15 knots.

0515 Tied quick dive and collected periscope signal.
0800 Lat. 06-09 N. Lon. 120-51 W.
1200 Lat. 06-19 N. Lon. 120-55 W.
1350 Succeeded and stood to range 150 R. on course 024°T at 15 knots.
2000 Lat. 06-54 N. Lon. 121-12 W.
Distances run - 1370 miles.
Fuel used - 1700 cals.

1 August 1942

Standing to ranges 350°W. Tied, on course 024°T at 15 knots.

0005 Slipped 0.3°N 120°W. Slipped 5°N 50°W.
0400 Sighted 1.5°N 50°W.
0452 Slipped 1.5°N 50°W. Course 000°W and coll. dead.
0600 Lat. 10-35 N. Lon. 121-43 W.
1200 Lat. 10-40 N. Lon. 121-43 W.
1340 Succeeded and stood north at 15 knots.
2000 Lat. 11-17 N. Lon. 121-51 W.
2030 Sighted 1.5°N 50°W. Sighted 0.3°N 50°W.
7 miles. Changed course to 330°W.
2320 Sighted 5°N 151°W. Slipped 0.7°N 50°W.
2340 Sighted 5°N 151°W. Slipped 0.4°N 50°W.
7 miles.
Distances run - 125.7 miles.
Fuel used - 1620 cals.

— page 89 —
2 August 1942

Standing towards NO. 1st TAS on various courses at 15 knots.

0155 Sighted HIBOU: ISLAND bearing 24°D distant 13 miles.
0159 Fade quick dive and commenced periscope patrol at north entrance to NO. 1st TAS.
0800 Lat. 12-43°N. Long. 120-36°W.
1200 Lat. 12-50°N. Long. 120-36°W.
1852 Surface course to 25°N, 25°W, and south eastward to 15°N.
1922 Channel course to 25°N, 25°W, and south eastward to 15°N.
2000 Lat. 12-50°N. Long. 117-32°W.
1855 Surface, south abeam at 15°N.
2000 Lat. 12-50°N. Long. 117-32°W.
1855 Surface run - 1490 miles.
Guel used - 1435 miles.

4 August 1942

Proceeding towards the TAS on course 25°N.

0543 Made quick dive and continued periscope patrol.
0800 Lat. 12-43°N. Long. 115-00°W.
1200 Lat. 12-40°N. Long. 115-32°W.
1350 Surface, channel course to 25°N, 25°W, and 15 knots.
2000 Lat. 12-42°N. Long. 115-29°W.
Set all clocks back one hour to confirm to zone
mines seven time (all time in patrol report
will continue to be same eight).

2106 Channel course to 26°N.
Distance run - 1414 miles.
Fuel used - 1415 miles.

— page 92 —
1200
Surfaced, front checked at 15 knots on 2 engines.
Lat. 14-00 T. Long. 112-20 W.
2000
Lat. 14-07 T. Long. 112-15 W.
2058
Changed course to 2-15N.
Distance run - 156.2 miles.
Fuel load - 1500 Cts.

-12-

— page 93 —
7 August 1942

Standing orders handed down on course 240° at 13 knots.

0549
0530
1200
1619
2000
0545
0534
1931
0539
1515
0539
-13-

— page 94 —
1943

U.S.S. TAUROG

She was armed with 4 guns, about 3 inch, two depth charges, and had a 4 inch gun. It is believed depth charge throwers and depth charges. She was making 10 knots (90 knots) on course. She cleared the distance of 1500 yards but in view of her character, particularly the shallow draft and the desire not to disclose our presence we did not fire. She continued on her course until about 4:00 PM. Then she changed to 3500. During the 10 minutes of the coast she made three different zig-zag, zig

— page 98 —
15 August 1942

Standing north of various courses at 15 knots in pursuit of Laru sighted the previous afternoon.

CL30
Reached 10 not position circled off Laru. At this point, if we had passed the Laru at 10 knots it was the close in coastline route the would reach Laru. But before day it, and would almost certainly pass inside of OTL 10 miles. If there is water to follow, the other land, if the were bound for the Philippines it was assured that she would have taken departure the coast at 10 knots. Since her speed had been generally about at 10 knots it was decided to act on the latter assumption and accept night at a relatively steady course was run to the eastward.

0700
Serving covered the area to the line between VENUS and the eastern limit of the Panama Strait. It was apparent that the passage of the Panamanian coast was not a matter of the moment, as the position of the enemy was not changed. The Panamanian coast was not a matter of the moment, as the position of the enemy was not

— page 99 —
0630
Took several pictures of the beach.
During the foray sighted numerous small sailing vessels standing south. As may as 20 were in sight at one time.
Surface and patrols on the surface on various courses at 5 knots.
Distance run -177.4 miles.
Fuel used - 820 Calts.

-19-

— page 100 —
17 August 1942
Patrolling off coast of CAFF VARDINA on various courses at 5 knots.

0540 Submerged and commenced patrol off the coast. Distanced run -1175 miles. Fuel used - 335 tons.

18 August 1942
Patrolling off coast of CAFF VARDINA on various courses at 5 knots.

0540 Submerged and commenced submerged patrol. On obtaining the first air after sunrise it was found that we had been out on the coast about 15 miles. Approximatey 15 more sailboats were sighted during the day. Surfaced. Set course 095°T and went ahead at 10 knots searching away from coast to attempt to discover traffic routes. Distance run - 92.5 miles. Fuel used - 520 tons.

19 August 1942
Standing away from WIDO CITY coast on course 095°T at 10 knots.

0732 Submerged and commenced periscope patrol on course 020°T. 0800 Let. 12-26-00 T. 1200 Let. 12-38-00 T. 1504 Surfaced and continued on course 020°T at 10 knots. 2000 Slowed to 5 knots and set sound watch. Let. 13-33-00 T. 1200 Let. 12-52-00 T. Distance run - 122.3 miles. Fuel used - 980 tons.

-20-

— page 101 —
0530 Increased speed to 8 knots and commenced patrol on line neutral to probable traffic lane.
: 0800 Lat. 14-55-30 N. Lon. 112-51-00 W.
: 1200 Lat. 15-00-00 W. Lon. 112-44-00 W.
: 1715 Sighted smoke on a seamer bearing 247° W. Intercepted speed to 15 knots and stood on various targets.
: 1837 Sighted smoke of second steamer bearing 015° W. Submerged and commenced submerged approach.
: 1901 The second steamer sighted approached at 15 knots on course 225° and was seen to be a large, close-range target. On closer approach the sea was seen to be a large, close-range target, and it was too dark to make out details, it is believed, of the submarine. She had a large, lightened area under each mast and a large, illuminated area between.
: 1941 The steamer was hard beaten by gunfire and was seen to be hit and had a large, illuminated area under her bow and a large, illuminated area under her stern. She appeared to be on a calm, medium sized, coal burning, passenger-firing, torpedo-torpedo boat.
: 1952 Reluctantly both ships were allowed to pass at a slow speed, although either could have avoided the torpedo.
: 2000 Lat. 15-20-00 W. Lon. 112-42-00 W. (Instability by fire after surfacing)
: 2022 Surface, but course 210° speed 6 knots. Received desperate fire from 053° to continue patrol until 26 August 1942. Distances run - 1594 miles. Fuel used - 835 Gals.

: 21 August 1942

: 0530 Intercepted close range line on course 210° W. at 5 knots. Sighted smoke from the stern and empty boxes during morning.
: 0800 Lat. 14-35-00 W. Lon. 112-10-00 W.

-21-

— page 102 —
1200 Lat. 14-15-00 N., Long. 112-05 E.
    Commenced patrolling courses 120°-300°T, normal
    to trawls lanes.
2000 Lat. 14-11-00 N., Long. 111-55-00.
2012 Changed course to 040°T, slowed to 5 knots.
    Distance run - 100.8 miles.
    Fuel used - 560 gallons.

22 August 1942

Patrolling along ocean lanes on course 040°T at
5 knots.

0500 Tied trimming dive.
0550 Surflaced. Commenced patrolling 12 miles offshore
    side on course on course 115°-295°T at 6 knots.
0800 Lat. 15-12-00 N., Long. 112-37-30 E.
1200 Lat. 15-05 N., Long. 112-55 N.
1915 Changed course to 205°T, speed 5 knots.
2000 Lat. 15-12 N., Long. 112-35 N.
    Distance run - 173.8 miles.
    Fuel used - 625 gallons.

23 August 1942

Patrolling along steamer lanes on course 015°T
at 5 knots.

0551 Tied trim and training dive.
0611 Surfaced, commenced surface patrol across steamer
    lanes on courses 115° and reverse at 7 knots.
0800 Lat. 15-01 N., Long. 112-42 N.
1200 Lat. 15-35 N., Long. 112-45 N.
1900 Set course 215°T at 5 knots.
2000 Lat. 15-25 N., Long. 112-54 N.
    Distance run - 159.8 miles.
    Fuel used - 640 gallons.

24 August 1942

Patrolling on course 215°T at 5 knots.
0545 Tied trim and training dive.
0616 Surfaced, commenced surface patrol across steamer
    lanes on courses 215° and reverse at 7 knots.

-22-

— page 103 —
0800 Lat. 14-38 N. Long. 112-36 E.
: 1200 Lat. 14-43 N. Long. 112-20-30 E.
: 2000 Lat. 14-58 N. Long. 112-41 E.
: 2100 Chat. ed course to 1000 at 5 knots.
    Distance run - 160.5 miles.
    Fuel used - 705 gal.

25 Aug 1942

Patrolling on course 100° at 5 knots.

0705 | 10 miles. Commenced surface patrol on courses 120° and reverse at 7 knots.
: 0300 | Lat. 15-57 N. Long. 112-44 E.
: 1200 | Lat. 15-47 N. Long. 112-49-30 N.
: 1530 | Chat. ed course to 140° at 5 knots.
: 2000 | Lat. 15-43 N. Long. 112-53 E.
    Distance run - 170.7 miles.
    Fuel Used - 590 gal.

26 Aug 1942

Patrolling on course 140° at 5 knots.

0350 | 5 miles. Transcribed as 15-00 E.
: 0612 | Surface, sat course 150° at 5 knots.
    Dist. to fire course and visibility generally
    poor due to fire.
: 0300 | Lat. 13-10 N. Long. 113-10 E.
: 1200 | Lat. 14-33 N. Long. 113-10 E.
: 1900 | Chat. ed course to 150°; increased speed to
   14 knots, standard.
: 2000 | Lat. 13-30 N. Long. 113-27-30 E.
    Distance run - 227.1 miles.
    Fuel used - 1500 gal.

--25--

— page 106 —
27 August 1942

Standing towards TIDDRO clearing patrol area on course 094°T at 14 knots.

0300  Let. 13-19 T.  Long. 115-57.
1200  Let. 13-16 T.  Long. 116-53-30 T.
1825  Slowed to 10 knots.
2000  Let. 13-05 T.  Long. 116-38 T.
2100  Clear ed to -8 zones rate: (Diary times have been -8 throughout)
2300  Slowed to 7 knots due to poor visibility and uncertainty as to position.
Distance run - 27.5 miles.
Fuel used - 2625 gallons.

28 August 1942

Standing towards TIDDRO on course 094°T at 7 knots.

0504  Direct and continued submarine.
0553  Take landfall on west coast of JAPAN and continued towards POSS RASS at 3 knots.
0600  Let. 13-00 T.  Long. 120-11-30 T.
1200  Let. 13-01 T.  Long. 120-20 T.
1830  Surprised, set course 152° and went ahead at 14 knots.
2000  Let. 12-37 T.  Long. 120-47 T.
Stood through POSS RASS on various courses and continued to southerly.
Distance run - 156.7 miles.
Fuel used - 1245 gallons.

29 August 1942

Standing towards POSS RASS, PLEW IS. on various courses at 14 knots.

C300  Sighted PLEW IS. distant 25 miles.
C505  Submerged off West Coast of PLEW IS. and continued to southerly.
0300  Let. 10-53 T.  Long. 120-51 T.
1200  Let. 10-45 T.  Long. 120-51 T.

-25-

— page 107 —
1835: Sunked, took departure from USS PT. and set course 200° at 12 knots.
: 2000: Lat. 10-10 N. Long. 121-42-30 E. Distances run - 176.5 miles.
: Fuel used - 1790 gallons.

1272

— page 108 —
1. Submarine patrol report 1942
2. Submarine patrol report 1942

---

**DECLASSIFIED**

---

**U.S.S. TAMU-6**

---

**1. Submarine patrol report 1942**

---

**Standard format for submarine patrol reports on course 180°T at 14 knots.**

0525 Subj: 0-4-00 S. 10L. 113-20 M.
0300 Lt. 01-00 T. 10L. 113-30 M.
1200 Lt. 01-00 T. 10L. 113-40 M.
1715 Tare laid off on 0-4-00 S. 10L. 113-50 M.
1305 Subj: 0-4-00 S. 10L. 113-60 M.
2000 Lt. 00-24T. 10L. 113-70 M.
2030 Chg: 0-4-00 S. 10L. 113-80 M.
Dis: 0-4-00 S. 10L. 113-90 M.
Trial used - 1850 Cal.

---

**2. Submarine patrol report 1942**

---

**Submarine patrol report 1942**

---

— page 111 —
0800
Lat. 23-43 S. Long. 112-09 W.
1200
Lat. 24-35 S. Long. 112-12-30 W.
2000
Lat. 25-27 S. Long. 112-19-30 W.
2100
Chance course to 172°.
Distance run - 304.9 miles.
Fuel used - 3635 Cals.

2 September 1942

Entrusted to Captain J. H. Smith, T. L. O. course
172° and 13 knots.

Take tri and train. Dive.
Sunscaled, compassed, zig-zag, etc.
1300
Lat. 28-57 S. Long. 112-15-45 W.
0320
Sighted and changed course at 45° S. ST. THIS on opposite
parallel course.
0830
Chance course to 114°.
1200
Lat. 20-35-30 S. Long. 113-12-30 W.
2000
Lat. 30-13 S. Long. 112-10 W.
Distance run - 289.7 miles.
Fuel used - 3610 Cals.

10 September 1942

- Proceed with... ... on various courses and
speeds.

0512
Floated scout at dead reckoning to berth.
Distance run - 74.5 miles.
Fuel used - 930 Cals.

--30-

— page 113 —
5. 1/24/42
Time & Date: 1/24/42
Range & bearing: 5000 290°
Mast No.: 0
Course: 25°
Speed: 0
Position: 12-40° 10°

— page 114 —
7. 0052 3,000 - 070° 0-433 10 135.110-10
9/2/42 230° 10 135.110-20

8 1610 12,000 - Various
7/7/42 350° 10 135.110-20

1261

— page 118 —
F5-61/A16-3
Serial (00-6)
DECLASSIFIER:
FIRST INVOICEMENT to
U.S.S. TAUTOG Var Diary
(3rd Var Patrol report)
Ser. 01 of 9-10-42.

From: The Commander submarine Division SIXTY-ONE.
To: The Commander Submarine Squadron SIX.
Via: (1) The Commander Submarine Squadron, SOUTH ATLANTIC.
(2) The Commander Submarines, SOUTH ATLANTIC.

Subject: Var Diary (3rd Var Patrol report) - Comments on.

1. The following comments are considered pertinent and worthy of special mention.

(A) MATERIAL

The material performance of the TAUTOG generally was excellent. Preliminary investigation by divers indicate that the QC side of the sound head had been sheared, to an extent not definitely determined. Since no spares are available in this area every attempt will be made to repair the outer diaphragm providing the crystals remain intact. One main engine will be given a 1500 hour overhaul during the refit period. The port propeller, which was repaired just prior to this patrol is being removed for visual inspection and an inner work. A replacement propeller will be installed by the repair facilities of the tender.

(B) HEALTH AND MOBILITY

Health appeared to be excellent considering the cycle of climatic conditions which submarines are subjected to in operations from this area and which caused colds and minor respiratory ailments. The Division Commander concurs in the Commanding Officer's comments in connection with the limited capacity and unequal air distribution in the air conditioning installation, but is also of the opinion that results will not be unsatisfactory if the plant is operated in accordance with our instructions under constant vigilance. The GRUPS reported that in operations on the equator, the highest temperature reached was 84° F in the forward battery with the crews space and after torpedo room progressively lower in temperature. This unusual performance was attributed to the expert care and adjustment made by a machinist's mate who was assigned no other duties than the maintenance of the air conditioning plant. Horale appeared to be excellent.

— page 120 —
11 095
From: The Commander Submarine Squadron SIX.
To: The Commander-in-Chief, U.S. Fleet.
Via: (1) The Commander Submarines, SOUTHWEST PACIFIC.
(2) The Commander Task Group 51.1.
(3) The Commander U.S. Naval Forces, WESTERN AUSTRALIA.
(4) The Commander Task Force 51.

Subject: War Diary (3rd War Patrol Report).

1. This patrol conducted in the South China Sea extended for a period of fifty-five days out of which forty-three days were spent north of the Malay Barrier.

2. The Squadron Commander concurred in the remarks contained in paragraphs 1(A) and 1(B) of the first endorsement with regard to material performance and the effect of poor air conditioning on personnel. That the poor ventilation air distribution exists is a matter of record since completion of the Tautog and further study of possible corrective expedients will be made.

3. The few contacts made with possible targets were aggressively handled and the successful attack on the Naval Auxiliary on 6 August resulted from pursuit for approximately nine hours. While there may be some question as to the soundness of the practice of making a submerged approach at night the facts that by trailing for a protracted period the course and speed of the target were well established, and sound conditions were such that good bearings and ranges could be obtained were in favor of the sound approach in this instance.

4. It is considered certain that the following damage was inflicted on the enemy by the TAUTOG.

Sunk - One 7,000 ton Naval Auxiliary.

A. R. McCANN.

— page 121 —
1. The Commander Submarines, SOUTHWEST PACIFIC.
To: The Commander in Chief, U.S. FLEET.
Via: The Commander U.S. Naval Forces, SOUTHWEST PACIFIC.

Subject: U.S.S. TAUTOG - War Diary (Third War Patrol Report).

1. It appears that the TAUTOG might profitably have attacked the destroyer sighted on the night of 24 July. Submarines must retain the initiative as long as possible. Unless this is done many valuable targets will escape and the submarine will be exposed to depth charge attack. Anti-submarine vessels large enough to be a torpedo target must be taught that they cannot attack submarines with impunity.

2. More contacts might have been developed if earlier in the patrol the TAUTOG had operated closer inshore at focal points and on the surface when in the open sea.

3. The TAUTOG is credited with the following damage:
   - SUNK
   - 1 - 7,000 ton Naval Auxiliary.

C. A. LOCKWOOD, Jr.

DISTRIBUTION:
COMINCH (2) DIVICOMS, RON-2 (1)
VICE OPNAV (1) DIVICOMS, RON-6 (1)
CINCLANTFIT (1) EACH S/M, W.A. (1)
CINCACFLIT (1)
CONSOUVESPACFOR (1)
CONSOUPACFLT (1)
CONSUBPLAN (5)
CONSUBSLANT (2)
CONTASKFOR-51 (1)
CONSURON-2 (1)
CONSURON-5 (1)
CONSURON-6 (1)

CLASSIFICATION THIS CORRESPONDENCE CHANGED TO: Confidentia/ AUTHORITY: 25.

— page 122 —
3/199/16
Serial (02)
CONDENSIFIED

From: The Commander, Officer.
To: The Commander in Chief, U.S. Fleet.
Via: Official Channels.

Subject: Air Diary (July 1942)

Inclosure: (A) Air Diary, Period October 8, 1942 to November 21, 1942.

1. Inclosure (A) is forwarded herewith.

[Signature]
J. F. H. H. Jr.

44575 FILMED

— page 123 —
199/416
DECLASSIFIED
U.S.S. TAUTOG

1. PLAN:
   - 11 - 13 September - at 15:00hrs, 14 - 16 September - 18:00hrs, 17 Sept. to 3 Oct. - 18:00hrs, 4 - 6 October - 18:00hrs, 7 October - 18:00hrs, 18:00hrs and 19:00hrs

2. ACTION:
   - Report Plan
1245

— page 124 —
11 Oct 1942
Standing northward along bombing restriction lane.
Continued surprise dive and training exercises.
24-50S, 112-37W.
24-00S, 112-37W.
12-18S, 112-53W.
Distance run - 333 miles.
Fuel used - 342 gallons.

11 Oct 1942
Standing northward along bombing restriction lane.
Entered 2nd ULT. CUT, torpedo off with 327 gallons of diesel oil then continued towards barrier.
12-36S, 113-19W.
Distance run - 245 miles.
Fuel used - 2160 gallons.
Fuel received - 9271 gallons.

12 Oct 1942
Standing towards LCT 2nd P-50, continued training dive and exercise.
Distance run - 310 miles.
Fuel used - 3000 gallons.

13 Oct 1942
Standing towards LCT 2nd P-50, continued training dive and exercise.
Distance run - 326 miles.
Fuel used - 3590 gallons.
Distance run - 114-46W.
Distance run - 114-56W.
Distance run - 115-19W.
Distance run - 325 miles.
Fuel used - 3590 gallons.

-2-

— page 125 —
3199/16
DECLASSIFIED

U.S.S. TAUROG

14 October, 1942

Standing towards LORAN, PA.
Sighted S. DARCOI.
Submerged. At morning, slight sighted LORAN.
Island and U.S. Island Island. Maintained position
south of LORAN. Crossed through the day.
Surfaced. Commenced battery charge and stood
through LORAN, PA. 05 on 4 engines.

9-013, 115-44E.
9-003, 115-45E.
8-57, 115-40E.
Distance run - 240 miles.
Fuel used - 2230 gallons.

15 October, 1942

Cleared LORAN and and stood toward PHILIPPI.
ATLANTIC, slowed to 2 engines.
Sighted S. ISLAND. Submerged and continued
north at periscope depth.
Surface and went ahead on course 025°T at 14 knots.
Sighted LORAN, and navigable sea plane approaching
from direct at line with sun. Submerged to
100 ft.

After careful periscope search, surfaced and resumed
course and agreed.

7-035, 116-18E.
6-57, 116-22E.
6-12, 116-45E.
Distance run - 172 miles.
Fuel used - 2060 gallons.

16 October, 1942

Standing north through PHILIPPI STRAIT on course
040°T at 14 knots.
Submerged and continued at periscope depth.
Surface, changed course to 045°.
Sighted C. ISLAND and cleared, passed between two
small sail boats about 2000 yards apart on east-
west line. Made various course changes to round
C. ISLAND and continued north. Visibility was
obscured by frequent heavy rain squalls and bril-
lient lightning. Flashes which blinded the lookouts.

-3-

— page 126 —
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0800 4-26, 118-05J.
1200 4-19, 118-04J.
2000 3-47, 118-04J.
Distance run - 207 Miles.
Fuel used - 2000 Gallons.

17 October, 1942

Standing through the night, the submarine cut through the frequent rain squalls with zero visibility when speed was reduced to the sound of the engine.

0300 Changed course to 015°.
0546 Submerged and continued at periscope depth, piloting along the coast.

1745 Surfaced, continued at 14 knots on course 020°T.
0500 1-50, 118-36J.
1200 1-45, 118-25J.
2000 1-00, 118-40J.
Distance run - 201 Miles.
Fuel used - 1920 Gallons.

18 October, 1942

Standing through the night, the submarine at 14 knots.
0504 Sighted ORD, LORDS Island bearing 067°T distant 5 miles.
0538 Submerged on course 005°T.
1300 Surfaced, changed course to 359°T and stood into the wind. During the afternoon sighted numerous large floatplanes, logs and trees. Held machine gun practice, sighted to distant seas to the westward.
0800 00-47T, 119-37J.
1200 1-00T, 119-41J.
2000 2-46T, 119-43J.
Distance run - 206 Miles.
Fuel used - 1660 Gallons.

19 October, 1942

Standing towards ISLANT on course 10°T at 14 knots.
0508 Made landfall on ISLANT Island to port and sighted Island to starboard.

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U.S.S. TAUTOG

0520
Suspended and maintained periscopes patrol at en-
trance to USS UTAH... through the day.
Surfaced, stood through the passage and continued
northward towards passage between 3000 and
1420. Islands.
0800
4-33N, 119-37W.
1200
4-20N, 119-38W.
2000
4-35N, 119-39W.
Distance run - 256 miles.
Fuel used - 2850 Gallons.

20. October, 1942

0125
Standing north from USS UTAH at 14 knots.
Commenced passage between 3000 and 1420.
Islands. On clearing passage set course 32°N and
entered USS LASTA standing towards 3000. Island.
Shifted outline of vessel ahead in the rain; rode
quickly into and continued submerged approach.
On closing made out vessel to be a diesel fishing
schooner of about 75 tons displaced. Went to
stations for battle surface but remained submerged
to permit schooner to continue eastward into an
area of better visibility.
Had battle surface, closed range and brought
schooner to within two rounds across bow. The
schooner broke Japanese color and hoisted a signal;
the lower was a smaller red ball enclosed by a
red circle on a field of white. On closing the
schooner she was discovered to be USS USS II
of 2000 tons, manned by a Japanese crew with
four Filipinos aboard. The Filipinos: Tonico
MORI, tetronito AUG, Jose PL. D. R. GARD and
Amoriso PL. D. D. D., after some encouragement,
saw over and came aboard. The Japanese were
ordered in English, Tagalog and Japanese to take
to the boats, or which there were three on the
lode stars, but they were considered reluctance
to expose their persons. Three rounds of 3'-50
were fired into the stern, disabling the rudder
and propeller. One boat was launched and, with
12 Japanese, came alongside; they were level water,
directed to the nearest land and operated. They
sited that no one else was aboard; however when
we opened fire to sink the schooner several
others left. Tan rounds were fired into the hull
and it was left burning with only the bow and pilot
house above water.

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Resumed course, 325°T and speed, 14 knots. Then about 5 miles distant from the schooner she was observed to sink.

Made landfall on 31st January 247°T. Made landfall on 31st January 250°T. Changed course to 27°T stand in to arcs 3-4-

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U.S.S. TAUTOG

1310
Sighted periscope bearing 215°T. Changed course to 030°T and went to full speed. Opened range to 5000 yards and resumed course and speed.

0800
0-53T, 111-31W.
1200
9-14T, 111-08T.
2000
9-52T, 110-04T.
Distance run - 254 Miles.
Fuel used - 1860 Gallons.

23 October, 1942

STANDING TO: TORPEDO COIL. ALL IN COURSE
301°T at 12 knots.
0515
Made landfall.
0557
Submerged and ran north at periscope depth along a line about 5 miles east of 0°T. On 24 Oct to look over the island. In the afternoon continued periscope patrol about 2 miles east of the island.
1430
Sighted three fish. Seemed a generally moored vessel.
1450
Sighted several motor storks, marked by red flags, to westward in position lat. 10-30, long. 109-02.
1705
Sighted naval auxiliary about 045°T. Came to approach course to close and ran at 5 knots, however the closest range attained was 4,500 yards.
Steamer course: 200°T
Speed: 12 knots
Track: 7 I.I. east of D. I.I.
1730
Sighted small S.C. similar to class 51, but zigzagging out to miles east of steamer along a course.
1745
Secured from atl. station and resumed northerly course. From the minesweeper of the more stables it would appear that traffic to the eastward passes well clear of the island.
1900
Suffered and stood to area 7 knots.
2033
Sighted small ship craft port beam, turned into moon to present small silhouette, opened range then turned around and closed. No were discovered and the ship turned to the right, her silhouette was of the small destroyer type very similar to the I.I. She gave chase and we retired to the southward at flank speed, opening and gradually working to the eastward.

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2324
Sighted second anti-submarine vessel standing out from south of U.S.S. LULU. At 12:00, changed course to 090° and continued at flank speed. Distance run - 150 Miles. Fuel used - 1020 Gallons.

24 October, 1942

Entering on course 090° at full speed with anti-submarine vessels on either quarter, dropping rapidly.

0330
With both ships out of sight, slowed, trimmed down and resumed course to track.

0245
Bighted either sub chaser or small destroyer, ship on port bow. Turned to present stern but were detected and the vessel gave chase. At this time the weather had commenced rising up and the eastern horizon was obscured by heavy black clouds. It is not until 2:00 that the vessel was able to clear the weather and the ship was able to sight the enemy. The visibility was reduced to 100 yards. The weather continued to deteriorate and the ship was able to run at periscope depth only at standard speed, and with frequent use of the active tank to prevent flooding.

1816
Surfaced into a tropical trough, wind about 40 knots from north and to the south. The weather was worsening. The ship was able to clear of the coast to ride out the storm. During the night the wind eased and the ship was able to clear the weather and the ship was able to ride out the storm. During the night the wind eased and the ship was able to clear the weather and the ship was able to ride out the storm. During the night the wind eased and the ship was able to ride out the storm. During the

— page 131 —
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DECLASSIFIED

25 October, 1942

Riding out through on a relatively course. Ind increased to approximately 50 knots towards dawn; seas running as high as 40 to 50 feet; ship completely overcast.

Submerged, ran at 120 feet on course 030°T through out the day. At this depth the ship rolled 5 to 10 degrees on either side.

Distance run - 34 miles.
Fuel used - 890 gallons.

26 October, 1942

Riding out through. Torpedoes drawn the ind had backed slightly to the westward and decreased to about 40 knots. The seas moderated very slightly and less water was being taken into the ship.

Submerged and ran on course 045° at 120 ft.

During the latter part of the afternoon the seas had moderated sufficiently to permit short periods of observation, however at 6 feet we rolled 15° on either side.

Surfaced. The wind had backed to W.S.W. and decreased to 20-25 knots. A long heavy swell from the north continued with a nasty cross chop from the west. Stood toward the coast on westerly course.

Distance run - 30 miles.
Fuel used - 640 gallons.

27 October, 1942

Watching towards the coast on westerly course navigating on the farther meter. Obtained several star sights through rifle in the clouds which gave a position south of our last fix on 24 October, despite the fact that we had made good north and north easterly courses throughout the period.

Face landfall on POULO COLI to westward confirming our star fix.

Submerged and commenced periscope patrol.

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DECLASSIFIED

1630
Sighted smoke of a steamer on southerly course on track about 15 miles east of ROUND CRISP. U.S.A.
commenced approximately 2,000 miles east of the ship's second course to the west. Later, apparently sighting the island, changed course to the northeast to close, by using high speed V. curve able to keep him in sight until evening twilight.
1911
Surfaced and continued trawling to the southeast. When it became apparent that the enemy was going to take a south-westerly course to the north, he changed course to 23° 15' speed 15 knots directly ahead of an along track of enemy. Opened on course 200°, submerged and commenced periscope approach in the moonlight. Due to a 5° mistake in estimate of target course before opening track, and limited visibility, the minimum range reached was 3500 yards.
2211
Fired two torpedoes, both of which were seen and heard to hit 2 minutes - 15 seconds later. A small fire was started in the after part of the ship, the bow was seen to rise into air and 7 minutes - 12 seconds after the second hit the ship sank.
2243
Surfaced and stood forward deep water. Distance run - 115 miles.
Fuel used - 790 gallons.

28 October, 1942

South east of ROUND CRISP, U.S.A. standing on course 090° at 15 knots to main deep water. It appeared that the ship sunk and was seen to go off the desolate scene no patrol craft were sighted.
0215
Charged course to 000°T.
0553
Submerged and connected periscope patrol.
0945
Sighted aerial auxiliary bearing 165°T on course 055° distant about 14,000 yards. Commander.
Approached.
The target had the general appearance of a small tender, approximately 3,000 tons, raised for coastal, or generally living quarters in the anchorage's structure, flush deck aft; cruiser bow and stern, two fairly heavy masts, single stack. Two guns, about 5" were mounted on raised platforms forward.

-10-

— page 133 —
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DECLASSIFIED

and aft. She was a coal bunker but looked new and modern and flow the naval design. She was escorted by two patrol craft one about to port and one on the port quarter.

First two torpedoes at 1200 yards, spread two thirds of the ship's length and then went to 250 feet since, at the time there were two SCU's within 1000 yards. One astern came about to starboard. Port-fives second aft firing the first torpedo, one of the torpedoes was heard to strike the ship but no explosion was heard. After the first few seconds the torpedoes could not be traced due to the noise of our second and blowing negative. Three minutes, twenty seconds after firing, one torpedo was heard to explode as it struck bottom.

The first depth charge exploded at an close; ten charges were dropped in this attack at 30 seconds intervals. Very deep depth setting were indicated by the slip-tight varying intervals; those which exploded a few seconds later shook up more.

Second attack, 5 charges.
Third attack, 9 charges.
Fourth attack, six charges.

The first and second attacks shook us up more violently; the third and fourth seemed to drive us deeper. There were several small leaks at packing, leaks and grease filtration, several light glows, one shattered and some paint flaked off in the afterburner. Some deck locker tops were loosened and the sheet metal over the escape buoy well was mushroomed. The insulation on the leaks to the master gyro oscillators was broken. There was a full ground on the follow-up system. There are minor grounds in the lighting circuits. Conduct of personnel during the attacks was admirable. The two patrol craft, together with at least two small lights, were on the surface and continued the search throughout the afternoon. Echo ranging on 10 k.c.s., using hand kevlar, was heard after the search vessel were lost sight of. The vessel fired at was not seen afterwards, due to the rally water from the depth charge attacks the vessels were could not be heard by manouvers.

-11-

— page 135 —
0517
0530
1546
1915
2300
2310
2311

U.S.S. TAUTOC

1. November, 1942

Standing towards Cdr. D. D. D. D. Visibility had cleared considerably and there were only occasional rain squalls.

Made landfall on Cdr. D. D. D. D. Visibility was good. Round it necessary to use 6 knots to control the ship due to strong currents off the cape. Established position by cuts and determined the current to be over 5 knots. The afternoon rain again commenced with attendant low visibility. Stopped on northerly courses throughout the day being set slow to the south.

Surfaced and continued north, rain frequently reduced visibility to zero. Distance run - 131 miles.

Fuel used - 370 Gallons.

2. November, 1942

Standing north at various speeds to search for the enemy. Request rain squalls reduced visibility, wind and seas building to northeast.

Submerged ran periscope patrol between 40 and 50 fathoms curve. Torps mid-morning, wind and seas moderated considerably and weather showed indications of breaking. In view of the exceedingly unfavorable weather the first station cleared since our arrival on station decided to take advantage of the break to make the line plant. Stopped on southerly courses at various speeds in order to arrive south of Cdr. D

— page 136 —
33199/A16
: SECRET
: SSIFIED

The mines, although over a mile distant, gave the ship a considerable roll and raised a column of water estimated at better than 200 feet high. Distance run - 124 miles.

Fuel used - 750 gallons.

2. January, 1942

Making mine plant in accordance with operation order.

0002 Completed planting all mines aboard. The plan specified as follow: all vessels except that no effort was made to correct for a 2 knot current system to carry 240T; this current will very likely move the mines from their planned positions so water continued to the minefield must be considered dangerous. Mines were planted in depths of water varying 5 to 12 fathoms. Neither during the plant nor during the hour each of the ships was required to return to the 30 fathom over water. The minefield was not designed to become a danger to the ships. The mines were placed in the water at a depth of 12 fathoms. The mines were

— page 138 —
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DECLASSIFIED

The torpedo tubes passed under the stern of the target but there was no explosion until the end of the run six minutes later. Immediately on firing turned into a rain squall at full speed; the target turned towards us but we were out of sight before she could act.

Decided that search in the existing visibility would be useless since the enemy could undertake it before we could, accordingly, get course for his own position at 15 knots.

0800 10-29A, 105-03B
1200 10-25B, 109-13A
2000 10-41A, 110-31B.
Distances run - 121 miles.
Fuel used - 790 Gallons.

6 November, 1942

Standard: on course 076° at 15 knots.
Reached enemy's position position 6 miles and commenced search.
Sighted enemy bearing 355°D distant 14000 yards.
During the night he changed course to 046°T.
Increased speed to full at 3 minutes and set course to gain position ahead.
Submerged ahead of enemy and commenced pursuit.
First one torpedo at 1400 yards (only one torpedo in action to this time). Decoded of two previous misses at 5 miles and 5 miles.
The first two misses at 5 miles and 5 miles.
The third two misses at 5 miles and 5 miles.
The fourth two misses at 5 miles and 5 miles.
The fifth two misses at 5 miles and 5 miles.
The sixth two misses at 5 miles and 5 miles.
The seventh two misses at 5 miles and 5 miles.
The eighth two misses at 5 miles and 5 miles.
The ninth two misses at 5 miles and 5 miles.
The tenth two misses at 5 miles and 5 miles.
The eleventh two misses at 5 miles and 5 miles.
The twelfth two misses at 5 miles and 5 miles.
The thirteenth two misses at 5 miles and 5 miles.
The fourteenth two misses at 5 miles and 5 miles.
The fifteenth two misses at 5 miles and 5 miles.
The sixteenth two misses at 5 miles and 5 miles.
The seventeenth two misses at 5 miles and 5 miles.
The eighteenth two misses at 5 miles and 5 miles.
The nineteenth two misses at 5 miles and 5 miles.
The twentieth two misses at 5 miles and 5 miles.
The twenty-first two misses at 5 miles and 5 miles.
The twenty-second two misses at 5 miles and 5 miles.
The twenty-third two misses at 5 miles and 5 miles.
The twenty-fourth two misses at 5 miles and 5 miles.
The twenty-fifth two misses at 5 miles and 5 miles.
The twenty-sixth two misses at 5 miles and 5 miles.
The twenty-seventh two misses at 5 miles and 5 miles.
The twenty-eighth two misses at 5 miles and 5 miles.
The twenty-ninth two misses at 5 miles and 5 miles.
The thirtieth two misses at 5 miles and 5 miles.
The thirty-first two misses at 5 miles and 5 miles.
The thirty-second two misses at 5 miles and 5 miles.
The thirty-third two misses at 5 miles and 5 miles.
The thirty-fourth two misses at 5 miles and 5 miles.
The thirty-fifth two misses at 5 miles and 5 miles.
The thirty-sixth two misses at 5 miles and 5 miles.
The thirty-seventh two misses at 5 miles and 5 miles.
The thirty-eighth two misses at 5 miles and 5 miles.
The thirty-ninth two misses at 5 miles and 5 miles.
The fortieth two misses at 5 miles and 5 miles.
The forty-first two misses at 5 miles and 5 miles.
The forty-second two misses at 5 miles and 5 miles.
The forty-third two misses at 5 miles and 5 miles.
The forty-fourth two misses at 5 miles and 5 miles.
The forty-fifth two misses at 5 miles and 5 miles.
The forty-sixth two misses at 5 miles and 5 miles.
The forty-seventh two misses at 5 miles and 5 miles.
The forty-eighth two misses at 5 miles and 5 miles.
The forty-ninth two misses at 5 miles and 5 miles.
The fiftieth two misses at 5 miles and 5 miles.
The fifty-first two misses at 5 miles and 5 miles.
The fifty-second two misses at 5 miles and 5 miles.
The fifty-third two misses at 5 miles and 5 miles.
The fifty-fourth two misses at 5 miles and 5 miles.
The fifty-fifth two misses at 5 miles and 5 miles.
The fifty-sixth two misses at 5 miles and 5 miles.
The fifty-seventh two misses at 5 miles and 5 miles.
The fifty-eighth two misses at 5 miles and 5 miles.
The fifty-ninth two misses at 5 miles and 5 miles.
The sixtieth two misses at 5 miles and 5 miles.
The sixty-first two misses at 5 miles and 5 miles.
The sixty-second two misses at 5 miles and 5 miles.
The sixty-third two misses at 5 miles and 5 miles.
The sixty-fourth two misses at 5 miles and 5 miles.
The sixty-fifth two misses at 5 miles and 5 miles.
The sixty-sixth two misses at 5 miles and 5 miles.
The sixty-seventh two misses at 5 miles and 5 miles.
The sixty-eighth two misses at 5 miles and 5 miles.
The sixty-ninth two misses at 5 miles and 5 miles.
The seventieth two misses at 5 miles and 5 miles.
The seventy-first two misses at 5 miles and 5 miles.
The seventy-second two misses at 5 miles and 5 miles.
The seventy-third two misses at 5 miles and 5 miles.
The seventy-fourth two misses at 5 miles and 5 miles.
The seventy-fifth two misses at 5 miles and 5 miles.
The seventy-sixth two misses at 5 miles and 5 miles.
The seventy-seventh two misses at 5 miles and 5 miles.
The seventy-eighth two misses at 5 miles and 5 miles.
The seventy-ninth two misses at 5 miles and 5 miles.
The eightieth two misses at 5 miles and 5 miles.
The eighty-first two misses at 5 miles and 5 miles.
The eighty-second two misses at 5 miles and 5 miles.
The eighty-third two misses at 5 miles and 5 miles.
The eighty-fourth two misses at 5 miles and 5 miles.
The eighty-fifth two misses at 5 miles and 5 miles.
The eighty-sixth two misses at 5 miles and 5 miles.
The eighty-seventh two misses at 5 miles and 5 miles.
The eighty-eighth two misses at 5 miles and 5 miles.
The eighty-ninth two misses at 5 miles and 5 miles.
The ninetieth two misses at 5 miles and 5 miles.
The ninety-first two misses at 5 miles and 5 miles.
The ninety-second two misses at 5 miles and 5 miles.
The ninety-third two misses at 5 miles and 5 miles.
The ninety-fourth two misses at 5 miles and 5 miles.
The ninety-fifth two misses at 5 miles and 5 miles.
The ninety-sixth two misses at 5 miles and 5 miles.
The ninety-seventh two misses at 5 miles and 5 miles.
The ninety-eighth two misses at 5 miles and 5 miles.
The ninety-ninth two misses at 5 miles and 5 miles.
The hundredth two misses at 5 miles and 5 miles.
The hundred-first two misses at 5 miles and 5 miles.
The hundred-second two misses at 5 miles and 5 miles.
The hundred-third two misses at 5 miles and 5 miles.
The hundred-fourth two misses at 5 miles and 5 miles.
The hundred-fifth two misses at 5 miles and 5 miles.
The hundred-sixth two misses at 5 miles and 5 miles.
The hundred-seventh two misses at 5 miles and 5 miles.
The hundred-eighth two misses at 5 miles and 5 miles.
The hundred-ninth two misses at 5 miles and 5 miles.
The hundred-tenth two misses at 5 miles and 5 miles.
The hundred-eleventh two misses at 5 miles and 5 miles.
The hundred-twelfth two misses at 5 miles and 5 miles.
The hundred-thirteenth two misses at 5 miles and 5 miles.
The hundred-fourteenth two misses at 5 miles and 5 miles.
The hundred-fifteenth two misses at 5 miles and 5 miles.
The hundred-sixteenth two misses at 5 miles and 5 miles.
The hundred-seventeenth two misses at 5 miles and 5 miles.
The hundred-eig

— page 139 —
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1535
Innerm turned and headed directly for us; went deep. At 135 feet the water temperature dropped from 82° to 74°F. Sound reception faded complete - 1', depth charges could be felt but not heard. Currents encountered made holding a course impossible.

1530
Returned to periscope depth, nothing in sight. "After returning to periscope depth it was twenty minutes before own groyllers could be heard over the sound gear. Only five depth charges had been sufficiently close to strike us. Since we had only one torpedo and the targets course and speed were not known we up the pursuit and remained submerged. We were less than an hour flying time from Charleston and presence of aircraft was probable.

1850
Surface, reported by radio and set course to return to area.

0800
11-15T, 112-49S.
1200
11-51N, 112-00E.
2000
12-37T, 112-46E.
Distance run - 190 Miles.
Fuel used - 390 Gallons.

7 November, 1942

0625
1028
Standing to arcs area on course 270°T at 8 knots. Changed course to 10°.

Standing plane to the northwest; 11-46N - 11-50E, type 95 seaplane distant about 3 miles turning towards us. Made crash dive. Just over one minute after sighting plane two explosions were heard which sounded like depth charges at shallow depth setting. We were just below 100 feet at the time. Ten minutes after diving a third explosion was heard which was not so loud, however we were at 200 feet and the water temperature was 6° below that at periscope depth. Course was changed to 27° on diving. Transmuted as our position was known decided to continue submerged. Surface, continued towards coast on various courses at 5 knots.

1830
Received despatched to return to FLAT. H, set course 150°T for ARMY Island and increased speed to 13 knots.

-17-

— page 140 —
35199/416
: 12-00, 110-50T.
: 11-46, 110-45.
: 11-43, 110-12.
: Distance run - 170 Miles.
: Fuel used - 1670 Gallons.

: 8/November, 1942

: Starting to cards SPARTAN Island on course 150°.
: 14:37
: 13-00, 111-31.
: 7-51, 112-41.
: Distance run - 233 Miles.
: Fuel used - 2530 Gallons.

: 9/November, 1942

: Standing towards DIALO STRAIT on course 088°T.
: 12-00
:

— page 141 —
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DECLASSIFIED

10. October, 1942

Strictly into SUB Gals from Baltimore STRAIT on course 090° at 14 knots.
Sighted sub Gals Island bearing 051° distant about 3 miles. Changed course to 120°.
With sub Gals Island bearing 330° changed course to 153°.
Sighted submarine Island of Pearl Harbor group bearing 135°.
Sighted submarine with enemy submarines approaching.
Charged submarine with enemy submarines.
Sighted submarine with enemy

— page 142 —
35199/16
DISTASSIFIED
U.S.S. TAUROC

1049

Propellers were heard through the hull and before
any action could be taken the first depth charge
exploded with such violence as to have the effect
of a physical blow; this was followed by four
other explosions. It was estimated that they
were along the line of the ship's axis and very
slightly to port. The first was approximately
over the after torpedo room, the second over the
compartment and the remaining three in line for-
ward. The first three probably exploded within
100 feet of the hull. The second was about
lights broke and there were flashes from electric
ball arcs. The conclusion was such that all hands
actually "saw red". The first charge blew out
a cast iron plug from the auxiliary engine cir-
culating water supply valve body, which had been
installed by the navy yard when the sea chest
blow was removed. We took two feet of water into
the engine room bilges before getting control
with the drain pump. This plug was located on
the after side of the valve body which cleared
the after engine room bulkhead by less than two
inches, very difficult for access. The opening
was closed by a wood plug, wedged in which held
until surfacing. During this, FLOYD, C.A., C.M.,
USN, despite being physically bounced about, con-
tinued his efforts to place the sound equipment in
the sensitivity to the point that propellers
could be heard within 1000 yards. Deliberate
attacks on which one or two charges were dropped
continued until 1235, a total of 11 charges. By
using evasive tactics we were able to keep away from
these charges so that they did no more than shake
us up. Eventually by utilizing the temperature
gradient we were able to loose the attacking
vessels; his piping was lost hard receding north
at 1325.

Damage sustained was:
Engine room leak.
Ventilation supply blower out of alignment.
Storm planes and rudder excessively noisy in-
dicating probable damage.
Bow plate tilting and rigging motors grounded.
A sound deck mechanical holding down device
broken.

-20-

— page 143 —
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DECLASSIFIED

Coming tower gyro repeater load short circuit. Numerous cables pushed through packing glands into the ship writing from a fraction of an inch to over a foot.

Numerous shorts of grounds in electrical circuits.

Light tubes broke through, about the ship. Heavy machine screw head holding cable clips snapped off.

Accessories of the unrollability of our sounder for a moment at 600 submersible until 1500 when we came to periscope depth and found all clear.

Charged course to 1800.

Surfaced, at course 203°T and stood into ILLINOIS AIR AT 14 knots.

0800 1-33T, 119-34T.
1200 1-11T, 119-31T.
2000 0-29T, 119-21T.

Distances run - 285 Miles
Fuel used - 2910 Gallons.

12 February, 1942

Standing through H.M.S. ST. LIT on course 203°T at 14 knots.

0500 Line quick dive and continued at periscope depth.

1620 Surfaced and went ahead at 13 knots.

0800 1-403, 119-303.
1200 1-443, 118-35T.
2000 2-135, 118-24T.

Distance run - 167 Miles.
Fuel used - 2280 Gallons.

13 February, 1942

Standing south through ILLINOIS ST. LIT on course 140°T at 12.5 knots. H.M.S. VIRGINIA OBTAINED from the coast of 100 fathoms. The ship was on the surface at 12.5 knots.

0538 Submerged and stood south through the day.

1500 Various sail boats off HAMILTON.

1806 Surfaced and stood towards HAMILTON ISLAND at 17 knots in order to make landfall before darkness.

-21-

— page 144 —
15 JULY 1942
SS119/16
DECLASSIFIED
SECRET

1900
2052
0800
1230
2000

Sailing into Java Sea, 205°T at 13 knots.
Change course to 43° standing towards Java Sea.
Island.
Sighted London lookout bearing 195°T.
Submerged and continued at periscope depth on
course 260°T.
Surface and went ahead at 14 knots.
Made landfall on South Island, obscured position
and changed course to 200°T standing towards
London Road.
Fire launched on London lookout.
6-493, 115-51J.
6-483, 116-43J.
7-353, 116-20J.
Distance run - 195 miles.
Fuel used - 1880 gallons.

15 November, 1942

Standing into London Roads on course 200°T. Increased speed to 16 knots on three engines. Made
passage with no unusual course and continued south.
Changed course to 19°T, slowed to 14 knots on
two engines.
Submerged and ran at periscope depth.
Surface, went ahead at 12 knots on course 192°T
9-323, 115-33J.
9-403, 115-30J.
11-043, 115-10J.
Distance run - 213 miles.
Fuel used - 2430 gallons.

-22-

— page 146 —
33199/416
DECLASSIFIED

19 November, 1942

Standing towards bombing restriction lane on course 220°T meeting 6 to 10 knots on 2 engines depending on weather.
Cheap course to 157°T.
Towards noon seas abated. Somewhat and speed increased to 12 knots. Adjusted course to conform to lane.
22-50, 112-50.
23-32, 112-40.
25-28, 112-10.
Distance run - 242 Miles.
Fuel used - 370 Gallons.

20 November, 1942

Standing south along bombing restriction lane towards FRANKFURT, ...
27-25, 112-26.
20-19, 112-37.

Distance run - 1 Miles.
Fuel used - 1 Gallons.

21 November, 1942

Standing south along bombing restriction lane towards FRANKFURT, ...
Joined escort and stood into harbor.

-24-

— page 147 —
1. 10/13/42 2150
2. 10/20/42 0704. 0750
3. 10/23/42 1430
4. 10/23/42 1705
5. 10/23/42 2038
341. 10/23/42 2150

— page 148 —
10/24/42 0245 Various 12 lts - 1st of 6th day 1st
7 10/27/42 1630 200 3 lts - 1st of 2nd day 1st
(attack no. 2) Three telegram pass-
sensor firefighter, east-
stomach, start, chest bow,
counter stern, to decks
of cabins entrance aboard
steak, tries as far as
bridge extended forward.
Conservative estimate
500 tons.
8 10/28/42 0945 005 9 lts - S. of 2nd day 1st
(attack no. 3) Are vessel as contact
no. 4 escorted by two
type 51 patrol craft.

9 11/5/42 0812 0750 10.3 lts - South of 2nd day 1st
(attack no. 4) 5 and 6) A vessel auxiliary,
passenger firefighter (believes
tender) mast-stack-mast,
armor, 2-5" guns and depth
charges, echo range, equip-
ment on 16 l.c.s.

10 11/11/42 0952 11 lts - 11/3-31st
(attack no. 7) Passenger firefighter,
mast-stack-mast- and post,
bridge and superstructure
well forward, cruiser bow
and stern, guns for and
aft, (missile), about 6000
tons, escorted by one type
51 patrol craft.

6. ATTACHED DOCUMENTS:
10/11/42 1304 11/15/42 1304 11/23/42 1108 11/7/42 1028 11/20/42 0735 27-20, 112-26th 11/20/42

— page 149 —
7. ATTACKS OF A TACO:
| Attack No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
||----|----|----|----|----|----|----|
| Attitude | 07-00 | 10-20 | 10-32 | 10-43 | 10-56 | 12-12 | 1-22 |
| Constituted | 119-16 | 106-43 | 109-15 | 110-25 | 111-00 | 112-50 | 119-31 |
| Torpedo | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Depth | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Torpedo | 3507 | 1250 | 1650 | 300 | 1400 | 2000 | 2000 |
| Depth | 0 | 357 | 170 | 359 | 130 | 014 | 014 |
| Depth | 110 | 95-103 | 35 | 35 | 35 | 35 | 35 |
| Depth | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Depth | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Depth | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Depth | 2-16 | 2-16 | 2-16 | 2-16 | 2-16 | 2-16 | 2-16 |
| Depth | 2-17 | 3-20 | 3-20 | 3-20 | 3-20 | 3-20 | 3-20 |

Attack No. 1 (Gun attack) described in narrative.
Attack No. 2. Sighted freighter on surface at 1630, 27 October, 1942; trailed submarine for course and speed. Onboard position ahead and after monorails, submarine, and air operations approach and at 2211 fired two torpedoes. Both torpedoes were seen and marked to hit the ship. 7 minutes later.

Attack No. 3. Sighted escort and armed auxiliary at 0945, 28 October, 1942, made submarine approach and at 1036 fired two torpedoes. Port of one torpedo striking the hull of the target was clearly heard over the sound gear, but the torpedo did not explode; the second torpedo exploded 3 minutes 20 seconds after being fired. Two escorts were on the port (shore) side of the target, one almost abreast and one on the quarter. Since both were within 1000 yards we did not wait at periscope depth to clear results.

Attack No. 4, 5 & 6. Sighted armed naval auxiliary at 0342, 5 November 1942, was unable to gain attack position submarine, so stood clear of U.S. ONCO 1, 1, surface, trailed, and finally at 1759 gained position ahead. Submerged and made periscope approach during evening twilight.

-27-

— page 153 —
10. RADIO:
(a) No difficulty was experienced with radio reception. Transmission on messages is expedited by the alert receiving watch stood by VLR0.
(b) Density layers were encountered in all areas in which we operated as a result of large temperature gradients.
(c) Because of bottom noises in shoal water conditions temperature gradients in deep water sound conditions were generally poor.
(d) From observations made on this patrol traffic loops well eastward of GGRD 12N.

-31-

— page 154 —
15-6/416-3/SS199
Serial # 00-35

SUBMARINE SQUADRON SIX
USS TAUTOG (SS199) Flagship

Care of Fleet Post Office;
San Francisco, California,
November 23, 1942.

From: The Commander Submarine Squadron SIX.
To: The Commander TASK FORCE FIFTY-ONE.

Subject: U.S.S. TAUTOG - Fourth War Patrol - Comments on.

1. Forwarded, The TAUTOG'S fourth war patrol was a combination mining and torpedo patrol. It covered a period of forty-five days, of which thirty-two were spent north of the Malay Barrier. This patrol was terminated early by orders of the Task Group Commander.

2. MATERIAL: The TAUTOG has a past history of noisy rudder operation and every effort will be made to ascertain and remedy this defect during the current refit. The vessel will be docked if necessary. The condition of the mufflers as reported by the Commanding Officer confirms the experience in other submarines having wet type mufflers. The two mufflers in the worst condition will be renewed with two units manufactured locally. It is considered that the manner in which the material withstood the severe depth charging during this patrol without serious derangement is highly satisfactory and should breed a feeling of confidence in operating personnel. The installation of the cast iron plug in the valve body was exceedingly poor engineering practice and a thorough search is being made for similar plugs throughout each submarine during refits. Steps are being taken to augment the equipment placed in each compartment to close leaks developing during depth charging. The number of cables passing through the pressure hull is being radically reduced by the removal of all but essential wiring topside to eliminate the pushing in of cables during depth charge attack as described in basic report.

3. Health and personnel endurance were excellent on this patrol; no sickness was reported and officers and crew returned in good physical condition.

4. Although three mines exploded prematurely, the mining mission is considered to have been successfully carried out. Hostile aircraft were sighted on three different occasions and ten contacts with enemy surface craft were reported. One gun attack and six torpedo attacks

— page 155 —
12 01466(a)
FC5-6/A16-3/SS199
Serial # 00-35
SUBARUES SQUADRON SIX
USS TAUTOG (SS199) Flagship
DECLASSIFIED
FIRST EDITOR: TATTOO
CO TATTOO 4th TAR
Petrol Report dated
November 22, 1942.

Subject:
U.S.S. TAUTOG - Fourth Tar Patrol - Comments on.
Continued.

were made; the TAUTOG was subjected to an especially severe depth charging
after the last attack and was depth charged on two other occasions. Of
the six torpedo attacks made, one was successful; the failure of the others
is attributed to a combination of control errors and doubtful exploder per-
formance. The commanding officer reports that the first torpedo fired on
the third attack was distinctly heard to hit the hull of the target, but
failed to explode; he reports also that the torpedo fired on the fifth attack
at a range of 800 yards was definitely seen to pass under the target without
exploding. There have been numerous reports of torpedoes failing to explode
when passing under the target, but this is the first report of a failure to
function on actual impact. Every effort is being exerted to insure the proper
functioning of exploders.

5. The TAUTOG is credited by the Squadron Commander with the
following:

1 - 5,000 ton passenger-freighter - Sunk.
1 - 80 ton fishing vessel - Sunk.

A. R. McCANN.

-2-

— page 156 —
16-3
Serial OC142
DECLASSIFIED
CUNIANDER ALLIED NAVAL FORCES
WESTERN AUSTRALIA
November 29, 1942.

SECOND ENDORSEMENT to
Fourth War Patrol SS199/A16
Serial (C2) of 11-21-42.

From: The Commander TASK FORCE FIFTY ONE.
To: The Commander in Chief, U.S. FLEET.
Via: The Commander Southwest Pacific Force.

Subject: U.S.S. TAUTOG - Fourth War Patrol - Comments on.

1. Forwarded, concurring in the first endorsement.

2. It is noted that the Commanding Officer considered that more than one torpedo should have been fired in the first attack on the naval tender, November 5th. It is also noted that but one torpedo was fired on the second attack from a very favorable firing position. With the scarcity of targets, particularly such valuable targets as tenders, a spread should invariably be used to provide for errors in course and speed estimates as well as to allow for erratic torpedo performance.

3. The four Filipinos removed from the Japanese fishing schooner October 20th, have been enlisted as Icss Attendants.

C.A. LOCKWOOD, Jr.

DISTRIBUTION
CONTACT:
VICEPORT
CINCLEANFLT
CINCAPACFLT
COISOUTESPAC
COISOUPACFLT
COISUSPAC
COISUSBLANT
COISUBRON-2
COISUBRON-5
COISUBRON-6
DIVCOIS, RON-2
DIVCOIS, RON-6
EACH S/M W.A.
(1) (Via Consuvespacfor)
(1) (1

— page 157 —
12 01466 (a)
A16-8 SOUTHWEST PATROL FORCE
Serial 00638
December 9, 1943.

DETAILED REPORT:
The Commander Southwest Pacific Force.
To: The Commander in Chief, U.S. Fleet.
Subject: U.S.S. TAUTOG - Report of Fourth War Patrol - October 8, 1943 to November 31, 1943.
1. Forwarded.

DECLASSIFIED
CLASSIFICATION THIS CORRESPONDENCE
CHANGED TO
AUTHORITY
DATE: 12-22-42

CONFIDENTIAL
36

— page 158 —
5199/A16-3
Serial 01

DECLASSIFIED

From: The Commanding Officer.
To: The Commander in Chief, U. S. Fleet.
Via: Official Channels.

Subject: War Patrol Report, (5th War Patrol).

Enclosure: (A) War Patrol Report. Period December 15, 1942, to January 30, 1943.

1. Enclosure (A) is forwarded herewith.

W.B. Sargent
W. B. Sargent

— page 160 —
2000 Set clocks to zone (-) 8.
2039 Took station on port quarter of U.S.S. TAMBOOR.

December 16, 1942

Standing northward along bombing restriction lane in company with U.S.S. TAMBOOR. Made test dive. Discovered minor leaks and corrected same. Made a battle surface for practice. TAMBOOR took departure for FRENCH FLEET, W.A. Made training dive. Surfaced. Made training dive. Surfaced. Made training dive. Surfaced. Made training dive. Made a battle surface. Posit: 29-27 S. 113-10 E. Distance run - 252.1 miles. Fuel used - 2070 gallons.

December 17, 1942

Standing northward along bombing restriction lane. Conducted training dives and exercised crew at drill and battle stations. Field drill for conning tower control party. Posit: 24-16.5 S. 112-36.5 E. Distance run - 321.1 miles. Fuel used - 3400 gallons.

December 18, 1942

Standing northward along bombing restriction lane. Conducted surprise dives, exercised crew at battle stations submerged and battle stations surface. Held drill for conning tower control party. Took departure from bombing restriction lane. and set course for CAPE KAROSSO, SOMBRA ISLAND C/S from 14 kts. to 16 kts. to be able to submerge in vicinity SOMBRA ISLAND at dawn of December 20th.

Page 2

— page 161 —
1200 Posit: 19-37 S. 113-20 E.
Distance run - 316.6 miles.
Fuel used - 3105 gallons.

December 19, 1942

Standing northward headed for SOMBA ISLAND at speed 16 kts.
Made trim dive.
Surfaced.
Posit: 14-32 S. 116-05 E.
Distance run - 363.9 miles.
Fuel used - 4575 gallons.

December 20, 1942

Standing toward CAPE RAINBOW, SOMBA ISLAND on course 030°T, speed 16 kts. Numerous rain squalls. No evening star fix December 19 or morning stars this date.
Submerged. SOMBA ISLAND obscured by rain squalls. By D.R. CAPE INSULIR 15 miles dead ahead.
Sighted SOMBA ISLAND dead ahead distant 10 miles.
C/C to 330°T.
Surfaced.
C/C to 060°T.
C/C to 085°T. Patrolling north coast of SOMBA ISLAND keeping about 5 miles off shore planning to submerge at dawn off WAINGAPU.
Posit: 10-07 S. 118-42 E.
Distance run - 333.3 miles.
Fuel used - 4340 gallons.

December 21, 1942

Proceeding along north coast SOMBA ISLAND on course 085°T.
C/C to 120°T.
Submerged off NANGAMUSSI BAY. C/C to 187°T to enter BAY and reconnoiter WAINGAPU.
Sighted JAP fighter plane. (Aircraft contact No. 1). Apparently plane had just taken off over land on eastern edge of NANGAMUSSI BAY and north of WAINGAPU.
C/C to 270°T. Three miles from WAINGAPU just outside 100 fathom curve. Could see no shipping in port. Sighted conspicuous red roof and black shades.

Page 3

— page 162 —
1054
with zinc-roof of ROYAL DUTCH PACIFIC CO., mentioned in H.O. No. 163, but could not see either of the two radio towers which were supposed to be situated on high land east of inlet behind town.
c/c to 000°T and proceeded along west coast of bay paralell to 100 fathom curve two miles off beach.
c/c to 180°T and retraced track.
c/c to 000°T having sighted no shipping in harbor and no small craft in bay.
c/c to 045°T to clear bay.
Surfaced in brilliant moonlight with SOEMBA clearly visible.
c/c to 138°T to patrol northeast coast of ISLAND.
KOLPANG distant 190 miles to far for an overnight run so decided to conduct a submarine patrol off SAWU ISLAND on December 22nd and arrive off KOLPANG at dawn on December 23rd.
c/c to 121°T departing from eastern coast of SOEMBA and heading for SIDA, SAWU ISLAND.
Posit: 9-36.5 S. 120-16 E.
Distance run - 175 miles.
Fuel used - 1380 gallons.

December 22, 1942

Enroute to SAWU ISLAND on course 121°T, speed 10 kts.
Sighted SAWU ISLAND dead ahead.
Submerged, Reconnoitered SIDA ROADS. No evidence of shipping, air activity or even small craft of any kind. Inter patrol rolled to northward and eastward of the ISLAND.
Surfaced.
Set course 045°T to attain suitable approach position for submerged patrol off northern entrance to KOLPANG BAY.
Posit: 10-19 S. 121-57 E.
Distance run - 149.3 miles.
Fuel used - 74.5 gallons.

December 23, 1942

Proceeding on surface toward entrance KOLPANG BAY on course 045°T, speed 10 kts.

Page 4

— page 163 —
0240 Sighted land dead ahead on course 132°T. TAUTOG in path of bright moonlight.
: 0452 Submerged five miles west of TG. KURONG LIGHT. Proceeded northward and patrolled opposite entrance to bay between CAPTAIN PAULAK and KURA ISLAND about two miles off 100 fathom curve. The white pyramidal tower of KURANG could be seen at times during day. No shipping, air craft, or other activity seen. Weather overcast with occasional showers.
: 1445 Surfaced. Proceeded northward keeping about five miles off coast towards BATTLE ISLAND in hopes of intercepting shipping enroute either to or from KORPANG - DILLI. Shot after surfacing both KORPANG LIGHT and TG. KURONG LIGHT were turned on for about ten minutes and what appeared to be several aircraft beacons were flashed. No planes could be sighted in twilight.
: 2226 Sighted BATTLE ISLAND in bright moonlight.
: 1200 Posit: 10-00 S. 123-30.5 E. Distance run - 140.7 miles. Fuel used - 610 gallons.

December 24, 1942

Patrolling northwest coast of TIMOR on course 040°T. During night sighted lights on beach and in mountains at various times.
: 0001 C/C to 220°T to return to KORANG BAY for daylight patrol.
: 0450 Submerged to repeat previous day's patrol off CAPE PAULAK on courses 045°T and 225°T.
: 1109 Sighted smoke in direction of KORANG LIGHT bearing 175°T.
: 1126 C/C to 180°T to investigate smoke.
: 1225 Sighted medium JAP bomber over bay. (Aircraft contact No. 2.)
: 1233 C/C to 225°T.
: 1255 Sighted ship bearing 132°T apparently headed northward in bay. Weather hazy with rain squalls in various sectors. Went to full speed and C/C to 010°T.
: 1207 Sighted tops of masts behind IRA ISLAND bearing 078°T angle on bow 90° port. Continued at full speed only to see ship disappear in heavy shower off CAPE PAULAK. Target appeared similar to SAIPAH MARU (page 62 O.H.I. 208-J), with stick.

Page 5

— page 164 —
1740
: 2005
: 1200
: 0107
: 0140
: 0225
: 0229

U.S.S. TAUTOG
NARRATIVE CONT'D

mast fore and aft, of composite superstructure, single stack, painted gray, estimated tonnage 5000. Closest range attained 4500 yds. Visibility remained poor to northward. Continued north to clear [DIPANG] area at speed of 6 kts. Reasoned that ship left at noon to arrive at [DILI] at dawn or earlier. TAUTOG could overtake her if enemy made 12 kts. or less and TAUTOG surfaced at sunset.

Surfaced early to increase chance of success although clearly visible from deck. Speed 16 kts. (3 engines) charging battery on 4th engine).

After passing [BATIK ISLAND] to starboard, decided ship would hug coast and might possibly elude us against the black roundabout background. C/C to maintain position about three miles off beach. Sky was overcast with occasional brilliant moonlight. Sighted [DIPANG] gunwale on shore at various times.

Posit: 10-01 S. 123-31.5 W.
Distance run - 139.3 miles.
Fuel used - 710 gallons.

December 25, 1942

In pursuit of enemy passenger cargo vessel, proceeding along north coast of [TITAN] enroute to [DILI] speed 16 kts.

Sighted plane over [DIPANG] passage and made quick dive. (Aircraft contact No. 3).

Surfaced and continued search.

Sighted ship on port beam, TAUTOG on course 030°T off [DIPANG] [DIPANG]. C/C to 060°T to gain position ahead and track enemy.

Sighted ship about six miles off [DIPANG] coast torpedo boat broad on port bow proceeding at high speed toward target. TAUTOG in bright moonlight and should have been plainly visible to both vessels.

A surface attack impossible so C/C to 350°T for a 90° track and submerged. Shortly thereafter picked up target as a black mass in periscope and saw her exchange signals with escort or rendezvous ship previously sighted. Had planned to fire bow tubes but bearings indicated collision course due to probably change of enemy speed. Went to full speed and crossed track of target for stern tube attack. Sound bearings started at a range of 3000 yards.

Page 6

— page 165 —
0306: Fired last torpedo.
0306-11: Fired 2nd torpedo.
0306-32: Fired 3rd torpedo. One minute and three seconds after each of first two torpedoes fired heard loud explosions. Third shot missed. Target screws stopped immediately and ship became enveloped in black smoke. Made periscope sweep for torpedo boat but could not pick her up.
0312: Heard explosion of third torpedo, at end of run. Target still enveloped in black smoke and not distinguishable. Heard definite noises of target breaking up. Heard fast propellers on stbd bow. Still could not see torpedo boat. C/C to 250°T and went to 150 feet. Small explosions were heard and felt seemingly from all directions. These may have been gunfire or small aircraft bombs. A search for a submarine in as restricted an area as OMBAI PASSAGE from a known position is simple mathematics so decided to test for surface position. Secured from silent running. Now tubes had been made ready for firing so torpedo from both rooms spent a pleasant 2-mrs cloching fish and reloading. At 150 feet working on torpedoes, heard ping-ing by two vessels astern. Pinging vessels now on stbd beam. Lost them soon thereafter. Surfaced. Considered a surface passage thru OMBAI STRAIT impossible in moonlight so decided to pass thru ALOR STRAIT to approach DILLI from north or east. 2100 C/C to 270°T. 2246 C/C to 330°T. 2250 Sighted ship bearing 250°T and put stern to ship. 2255 C/C to point bow at enemy. She appeared to

— page 166 —
2304
2305
2309
2311
2315
2359
1200
2335
2359
1200
0127
0130
0210
0455
0500
1847
2130
1200

U. S. S. TAUTOG
MARRATIVE CONT'D

be size of small freighter and as high in stern as in bow. Visibility hazy with moon obscured by clouds. Estimated range to be 5000 to 7000 yds and determined that ship was heading west. Sighted small vessel size of a P.C. boat ahead of target.

Saw P.C. craft turn and pass astern of target. Both ship and P.C. boat turned quickly and headed for us. Sound reported pinning dead ahead. We were spotted.

Submerged and C/C to 5000 ft run out for a 900 ft track.

Inemy dropped 8 depth charges. Inemy had under- estimated range. Realized that larger ship was on A/S vessel. Close to shore. Charges were so close together that they were probably dropped from 7 guns. Inemy continued to fire. TAUTOG relaxed below a 5 degree temperature gradient at 200 feet.

A/S vessels passed astern. Began C/C slowly to 9000 ft to keep enemy astern.

Christmas comes out once a year. Posit: 3-37 S. 124-40.5 H. Distance run - 194 miles. Fuel used - 1770 gallons.

December 26, 1942

Submerged on course 090°F evading enemy A/S vessels.

Surfaced. Visibility reduced to 2000 to 3000 yds in all directions with intermittent showers. Due to A/S vessels abandoned plan to pass thru ALOR STRAIT. Decided to patrol off KOEPANG.

C/C to 1800 ft. Ran flooded down at speed 15 kts to clear enemy A/S vessels.

C/C to 2500 ft.

Submerged.

C/C to 1300 ft.

Surfaced.

Decided to pass ALOR STRAIT. Went to three engine speed 16 kts. and set course for STRAIT.

Posit: 9-20 S. 123-09 E. Distance run - 168.2 miles. Fuel used - 1560 gallons.

Page 8

— page 167 —
15.12.42
In SAW SSA on various courses, speed 16 kts.
proceeding towards ALOR STRAIT.
On course 030°T entering ALOR STRAIT. C/3 to
Flank speed (4 engines), 17.5 kts.
Completed passage thru STRAIT. It STRAIT was
watched from shore, were seen. Sighted
lights or fires of natives in mountains at
various times. C/0 to 073°T.
C/0 to 090°T and submerged for daylight patrol
along north coast of ALOR ISLAND.
C/0 to 000°T.
Surfaced proceeding away from coast to charged
battery.
C/0 to 090°T.
Sighted patrol craft apparently ORILL class
broad on port bow. Put stern to her C/5 to
full speed and quickly lost sight of her.
On various courses to pass to northward of
patrol vessel.
On course 090°T sighted same patrol vessel
bearing 057°T.
C/0 to 260°T and went to full speed. Patrol
vessel was 65 miles bearing 533°T from HILL T.
Her presence in this position may have been
because our presence was suspected, or because
cause JAPS patrol well out to sea prior to departure or to make a rendezvous.
Posit: 0-02.5 S. 12-4-37.2 E.
Distance run - 200.6 miles.
Fuel used - 2040 gallons.

December 28, 1942

Patrolling in FLORIS SEA north of ALOR ISLAND attempting to proceed to northern approach to
DILLI undetected prior to dawn on various
courses at various speeds.
Submerged on course 120°T for patrol of passage between ALOR and KAMBING ISLANDS.
Surfaced on course 000°T. Sky overcast with
local showers. Planned to proceed northeastward charging battery and then approach DILLI
taking advantage of weather to obscure the moon.
Steering various courses heading for passage
between LIRAN and KAMBING ISLANDS.

Page 9

— page 168 —
1200 Pos: 8-06.5 S. 125-16.6 M.
: 1200 Distance run - 160.4 miles.
: 1200 Fuel used - 1140 gallons.

December 29, 1942

Approaching DILL, TIMOR on various courses at various speeds via passage ITALY and TAIWAN.
ISLANDS. Brilliant moonlight would break through clouds at times, giving us unpleasant feeling of being on a cargo under high lights.
One lookout on top of a hill in ITALY with binoculars could effectively patrol all DILL area on a bright moonlit night.
Submerged about 9 miles north of DILL.
Heard periodic ringing bearings 1800 apparently sonic and probably from a shore ship called sonic buoy. Nothing in sight. Noise sounded like a series of clicks and continued for about 10 minutes.
Approached to within 5 miles of ITALY LIGHT.
Could see no ships. Our airforce had probably scattered same.
Proceeding eastward along north coast of TIMOR.
4.5 miles off ITALY. Sighted old church and residence, no ships.
Surfaced. Low visibility, heavy showers.
Proceeded eastward in ITALY STRAIT on course 0700.
Sighted lights similar to aircraft beacons in vicinity of ITALY.
North of CAPE LATVIAN. C/C to north to patrol ITALY STRAIT on north and south course.
Posit: 8-25.0 S. 125-40.3 M.
Distance run - 155.1 miles.
Fuel used - 865 gallons.

December 30, 1942

Patrolling ITALY STRAIT on north and south course due north of CAPE LATVIAN, TIMOR.
Submerged 6 miles north of LATVIAN.
Sighted smoke bearing 190°T and C/C to 190° to investigate.
C/C to 270°T. 2 miles off shore. Smoke was from a small wood fire on beach. Sighted buildings but could see no evidence of damage.

Page 10

— page 169 —
1817
Sighted smoke off WMAASS. C/C to 130FT and ran toward beach at standard speed (6 kts.)
1835 Smoke seen to be from wood fire on shore C/C to 0000T.
1849 Surfaced. Commenced patrol of WETAR STRAIT.
1200 Posit: B-23,5 S. 126-30 M.
Distance run - 137.2 miles.
Fuel used - 670 gallons.

Dec 31, 1942

Conducting surface patrol of WETAR STRAIT on various courses at slow speeds.
0431 Submerged on course 155FT proceeding to investigate anchorage at LAUTAU, TIIOR.
0641 Two miles off shore with excellent visibility.
LAUTAU appeared to be largest of coast villages. Sav about 15 good sized buildings. No signs of small boats or shipping. C/C to proceed along coast repeating previous day's patrol.
1143 North of LAUA. Sighted ship bearing 033FT.
C/C to approach ship.
1230 Identified ship as small fishing trawler of about 30 ton. She was making slow speed, 3 to 4 kts. Canouflaged black and gray. Had a clear forecastle with stick mast forward, flying a DA ensign, and deck house aft of amidship.
1242 C/C to parallel fishing vessel proceeding westward keeping about 2000 yds to seaward and 1/4ft her beam.
1625 Visibility reduced for periods due to local showers. Planned to surface about sunset and blast trawler with 5" gun.
1714 Fishing vessel proceeding to anchorage at BAUAU. Little to be gained from an attack. TAUTOG close to shore exposed to gun fire or bombs. Noted a range at BAUAU consisting of a white pyramidal beacon in water and two white flags on mountain side.
1833 Surfaced. Speed 14 kts. (two engines), on various courses to clear WETAR STRAIT. TIMOR area seemed very quiet. Decided to proceed to AMBON. Had seen no activity on beach. Reports of troop

— page 170 —
2345
Northwestward of ISAR ISLAND. Sent TAUTOC
Serial 1 to CTP-51 reporting x-mas attack
and A/S vessels.
Post: 8-24 S. 126-39.5 E.
Distance run - 137 miles.
Fuel used - 375 gallons.

January 1, 1943

Enroute TIMOR area to AMBON on course 340°T
speed 14 kts.
C/C to 005°T.
Submerged. Had received SHARAVEN's report of
attack at AMBON. Suspected a fairly thorough
air patrol this date; also, TAUTOC may have
been cut in by enemy R.D.P. during radio tran-
smission of last evening.
Surfaced early with nothing in sight. Speed
14 kts.
Made landfall on LUCTARA ISLAND.
Post: 6-20 S. 127-14 E.
Distance run - 200 miles.
Fuel used - 200 gallons.

January 2, 1943

Enroute AMBON on course 020°T.
Made landfall on AMBON ISLAND.
Submerged.
Sighted JAP torpedo boat (OTORI class), bear-
ing 015°T on southerly course at slow speed
and pinging constantly. C/C to 270°T.
Sighted a second OTORI class torpedo boat
bearing 347°T on course 235°T. She was also
pinging constantly and proceeding at slow
speed.
First torpedo boat went out of visible range
on port quarter. Reasoned vessels were: 1.
Searching area for revenge on SHARAVEN. 2.
Preliminary survey prior to departure of ship
from port.

Page 12

— page 171 —
0854 C/C to 2250 TAUROC about 8 miles south of TG ALANG.
0932 2nd torpedo boat turned to north after approach-ing to within 3000 yds of TAUROC.
0928 C/C to 2700T.
1052 Sighted masts of ship on stbd quarter. Pinging also heard from same bearing, assumed we had picked up first torpedo boat again. Shortly thereafter determined ship was a freighter, went to battle stations. Early bearings confirmed, (reason explained later). Ten minutes after first sighting, saw king posts of a large freighter similar to U.S.S. RINALDS. She had heavy goal posts for and aft with pig sticks on cross members. Smaller goal posts for and aft of composite superstructure and large stack aft of superstructure. She was extremely well camouflaged and escorted by an OTORI torpedo boat. Ship was zig zagging. A small angle on bow for about eight minutes placed us in an excellent position. Subsequent rips opened track and TAUROC erred in expecting a zig toward us. Sighted a single float bi-plane circling over target, (Aircraft contact No. 4).
1150 Gave up hope of attaining an attack range.
1201 Enemy on course 2550T bearing 2180T. TAUROC on course 2400T.
1204 Sighted another freighter on stbd beam range 5000 yds angle on the bow 900 port. She was about 3000 to 4000 ton, single stack, good post masts for and aft, and composite superstructure, also escorted by an OTORI. Now realized that had originally sighted both freighters and during last ten minutes had sighted both. Targets had passed TAUROC one to right and one left. Speed of both targets about 12 kts.
1222 Sighted same plane previously seen over 2nd MARU.
1300 Lost all hope of a firing range. Continued to follow on course 2400T. Assumed ships were headed for SURABAYA or MAHABAR and resolved to pursue on that basis.
1540 Entered rain squall.

Page 13

— page 173 —
1515 Entered rain squall. Last bearing of enemy 087°T. Felt sure MARU was headed for SALIENT STRAIT and had been endeavoring to confuse us. 1536 Submerged as squall began to clear. C/C to 087°T and commenced approach. 1545 Sighted target range 25000 yds on course 270°. (15 foot periscope exposure). Continued approach for about one and half hours during which time target made 12 zips. TAUROG ran a distance of over eight miles, about a maximum, allowing for periscope exosurveys. At 1652 had target on course 250°T 50° angle on bow, range 4500 yds, 90° track, escort ahead. The situation appeared excellent but 2 minutes later target zigged 60° away. Surfaced but found enemy still in sight and submerged at once. 1827 Surfaced. Decided to run for SALIENT STRAIT to intercept MARU after dawn. 2038 Made landfall on BAUU ATA ISLAND. 2115 Sent TAUROG Serial 2 to CTF-51 reporting chase of MARU, her position and probably destination as MACISAR in hopes that another squadron submarine might be able to intercept. 2214 Noted 3 white lights on BAUU ATA ISLAND. One on each tangent and one on center peak. Probable navigational lights rather than just a coincidental one. 1200 Posit: 6-21.5 S. 123-55 W. Distance run - 318 miles. Fuel used - 4120 gallons.

January 4, 1943

In FLORISSAA in pursuit of JAPANESE cargo vessel on course 280°T, speed 15.5 kts. Sighted target ahead, estimated distance to 8000 yds. She had been making better than 13 kts. and TAUROG's maximum had been reduced due to an overheated motor. 0425 TAUROG on starboard quarter of enemy and unable to gain an attack position prior to dawn. C/C to get astern, visibility poor. Decided to shoot a last hope, "up the kilts" shot. 0430 Sighted escort on port side of MARU. 0444 Escort and target began making black smoke. Perhaps we had been sighted although escort

Page 15

— page 174 —
0450
U.S. SUBMARINE
CONTINGENCY
LARATIVE CONT'D

would certainly have opened up.
Estimated track 170 to 180° range 3000 yds
or less. Fired one torpedo zero gyro angle.
Torpedo zigged right and left several times
before settling down on a course apparently
to right of target. TAURO on course 268°T
with steady bearing of target.
Fired a second torpedo which appeared to be
right down track of target when wake was last
seen. Heard explosions 6 minutes after the
firing of each torpedo. (And of the run). Dis-
gusted. Could not beat enemy thru BATTLE
STRAIT. The HAUU outwitted us for the third
time. Cave up chase as dawn rises away.
Reversed course, enemy soon disappeared in
morning twilight.
Submarined to sixft torpedoes in for and room.
Surfaced on course 1000T, 25 miles southwest
of BATTLE ISLAND, speed 11 knots. ULTROCH had
been on surface in sight of enemy and so
often to date that such procedure caused us
little worry as we had probably already been
reported in this area.
C/CTO 035°T to proceed thru BATTLE ISLAND.
An exceptionally dark light for this patrol.
Passed a sail boat close aboard to starboard.
Posit: 5-22 S. 122-00 M.
Distance run - 296.1 miles.
Fuel used - 3350 gallons.

January 5, 1942

Standing thru BATTLE ISLAND enroute to AMBON
speed 11 kts. on various courses.
Completed transit of BATTLE ISLAND, C/CTO 085° to
proceed to AMBON via trade route.
Sighted sailboat broad on port bow and C/CTO
head for it.
Approached boat with all machine guns manned.
Ordered sail lowered by hand signal and had boat
come alongside. Counted about 12 nervous male
MOONBEDS on board. They broke out a JAP
flag and hoisted ensign. Had fire lighted and
delivered to TAURO along with boat's papers.
Boat was BATTLE ISLAND, single mast, registered
as 8 or 16 ton. Ordered all hands aboard in-
tending to sink boat and desist nets in
nearest land. Discovered about four women in

Page 16

— page 175 —
0715
Left company of BLUEBIRD and continued on surface enroute to ABROAD.
Made landfall on BURU ISLAND.

1533
C/C to 0600T.
C/C to 0800T.
Fos: 4-44 3. 125-36 N.
Distance run - 265.7 miles.
Fuel used - 2110 gallons.

January 6, 1943

Patrolling enemy route across to westward on course 0800T. Speed 8 kts. Visibility poor to fair, hazy.
0335
Submerged for patrol off entrance ABROAD.
Visibility poor all day.
1831
Surface. Patrolling on course 2400T, speed 8 kts.
2345
C/C to 0600T.
1200
Fos: 3-57 5. 127-52.5 E.
Distance run - 177 miles.
Fuel used - 740 gallons.

January 7, 1943

Conducting surface patrol standing toward AMBON on course 0600T, speed 8 kts. Sky overcast weather squally with moderate to heavy swells from west.

Page 17

— page 176 —
0511
Submerged for daylight patrol on courses 330°T and 150°T, about 4 to 6 miles southwest of TG ALAC. Visibility poor to fair throughout day with swells making periscope exposures increasingly difficult.
1827 Surfaced on course 240°T, speed 8 kts. 1200 Pass: 3-50 S. 127-51 E. Distance run - 140.1 miles. Fuel used - 620 gallons.

January 8, 1943

Conducting surface patrol along an enemy route to ADDI on course 240°T, speed 8 kts. 0000 C/C to 060°T. Passing rain squalls, wind force 5, moderate to heavy swells from west. 0508 Submerged and repeated previous day's patrol. 1825 Surfaced on course 240°T. 1346 C/C to 210°T, speed 8 kts. 2130 C/C to 090°T. Desired to be east of TG 1200 Pass: 3-50 S. Distance run - 127.4 miles. Fuel used - 615 gallons.

January 9, 1943

Patrolling off ADDI on course 090°T, speed 8 kts. Overcast sky, occasional rain, wind force 5 - 6, swells from west. 0502 Submerged, estimated position 28 miles southeast ADDI BAY. Swell 8 to 10 feet 1 h. 0938 Sighted LUCKI class cruiser bearing 044°T, angle on bow about 30° port and range of 3000 yds. With existing sea conditions our range of visibility was extremely limited. At 58 feet depth, exposing 9 feet of periscope, swells came over periscope. TAUROC was on course 270°T. Went to full speed, C/C with full right rudder to course 010°T and carried battles stations. 0941-45 Fired only tube ready. 0943 C/C to 320°T. Two minutes and fifteen seconds after firing of torpedo, heard loud explosion. Cruiser's screws stopped immediately. 0945 Cruiser was seen swinging left presenting a 90° port angle on the bow and had lost way; speed now estimated to be 5 to 8 kts, previous speed 21 kts. 0948 Fired two torpedoes spread 25 seconds apart.

Page 18

— page 177 —
951
2 minutes and 5 seconds after second torpedo was fired heard a muffled explosion proceeded by a very definite detonation wave.
Enemy opened up with all seven 5"5 guns and C.O. witnessed four full salvoes in quick succession fired in direction of TAUTOG. At this time sound heard screens, but what told she had four, sound reported only half previous number were in operation. Heard too four loud explosions similar to depth charges or torpedoes in quick succession.
Cruiser C/C to 3200T and hauled away at about 10 kts. continuing to fire all guns. Began to hear a long series of various small explosions reported by scene to be similar to aircraft bombs. Probably were shells hitting or exploding in water.
C/C to 1900T to clear area of gunfire or bombs. Cruiser had a plane on catapult, (Aircraft contact No. 6), but it had not taken off. It was almost impossible to see cruiser without danger of breaking and in view of furious gunfire, broaching was not to be desired.
Had continued to hear explosions previously mentioned, for fifty five minutes. Assumed enemy had continued to fire intermittently for this length of time. Periscope observations failed to locate enemy. Seas practically perfect. Aborted to 80 feet to reload and check torpedoes. This cruiser was very defective damaged, and whether or not she made 1900T is problematical. The TAUTOG's first hit was pure luck.
1500 Low visibility, heavy seas.
1325 Surfaced. Got course 2700T, speed 10 kts. Wind force 6 - 7. Heavy swells and rain squalls. Further patrol south of ATSON deemed useless. Planned to proceed north of STRIKE BAY via probable route to and from NUTTLE to that area.
1200 Posit: 4-14 S. 126-25 E.
Distance run - 137.3 miles.
Fuel used - 725 gallons.

— page 178 —
0703 Made trim dive.
0729 Surfaced. Sky overcast fair visibility. Decided to run on surface for the day, speed 10 kts.
0305 C/C to 320°T.
1030 C/C to 315°T.
1254 C/C to 270°T. Clouds over BURU ISLAND had lifted and beach looked too close. Except for doubtful bearings had been on D.R. for several days.
1528 C/C to 000°T.
2007 C/C to 090°T.
2130 Made landfall on SULA ISLANDA ISLAND. TAUTOG in center of passage between this ISLAND and BURU.
1200 Posit: 3-44 S. 127-57 E. Distance run - 1300. miles. Fuel used - 1430 gallons.

January 11, 1943

Underway on course 090°T, speed 10 kts. north of BURU ISLAND planning daylight submerged patrol north of LITTLE STRAIT.
0514 Submerged.
0610 Suddenly lost control. Ship swung 40° to right with full left rudder and depth changed quickly from 60 to 150 feet. With 10° up angle and flank speed, TAUTOG barely held her depth. Rudder control useless.
0625 Regained periscope depth. Surface water about 1000°ds on starboard beam indicated distinctly a strong tide rip with an appearance of a whirlpool. C/C to 270°.
1025 C/C to 180°T.
1330 C/C to 270°T.
1630 Sighted smoke bearing 015°T. C/C to head for smoke.
1636 Sighted masts of a ship and commenced approach. Target was a naval auxiliary of about 5000 tons, stick masts fore and aft, split superstructure, slender single stack, raised forecastle, plumb bow, counter stern. One gun forward and one

— page 180 —
1855
Sighted two vessels bearing 166°T, both signal-ing with restricted searchlights. Concluded escorts, or rendezvous vessels had arrived on scene, visibility too clear for undetected approach. C/C to 346°T to clear area.

1932
C/C to 315°T.

1943
C/S to 14 lts.

1950
C/C to 270°T.

2350
Sent dispatch to CTP-51, (Serial No. 3), reporting cruiser attack and today's debacle.

2359
C/C to 245° to proceed to STRAIT BAY.

1200
Posit: 2-37 S. 127-25 W.
Distance run - 215.7 miles.
Fuel used - 1305 gallons.

January 13, 1943

Underway on course 245°T, speed 9 kts. enroute STRAIT BAY.

0245
Made landfall on WOVONI ISLAND.

0300
C/C to 000°T.

0400
C/C to 160°T.

0415
C/C to 270°T.

0515
Submerged patroling north of WOVONI ISLAND.

1846
Surfaced on course 070°T, speed 10 kts.

1927
C/C to 000°T. Conducted patrol on north and south courses between WOVONI and MANU ISLANDS.

1200
Posit: 3-48.2 S. 123-10.8°E.
Distance run - 140.5 miles.
Fuel used - 580 gallons.

Page 22

— page 182 —
1114  North of MIDDLE SAVONIA ISLAND. Noted 10 or 15 huts or houses on this little island.
1258  Sighted several small sailboats in STARING BAY.
1335  Sighted single engine fighter plane over LONDON on westerly course (Aircraft contact No. 9).
1845  Surfaced proceeding eastward on various courses, speed 10 kts.
1200  Posit: 3-56. S. 122-45.6 W.
    Distance run - 141.5 miles.
    Fuel used - 565 gallons.

January 17, 1943

Patrolling north of WOWOI ISLAND on various courses, speed 8 kts.
Set course 270°T.
Submerged.
Fuel used - 690 gallons.

January 18, 1943

Patrolling north of WOWOI ISLAND, speed 7 kts. on various courses.
Set course 270°T.
Submerged.
C/C to 24.5°T.
C/C to 030°T.
C/C to 090°T.
Visibility poor for about one hour due to passing showers.
Surfaced. Speed 8 kts.
Sighted small vessel bearing 118°T. Pointed bow at vessel to approach same. Bearings draw to left slowly. Visibility hazy. Vessel had appearance of metal boat at slow speed on northwesterly course.
Had approached to within 3 to 5000 yds of vessel when brilliant moon broke through clouds. Decided to approach vessel submerged to avoid detection. Submerged on course 065°T.

Page 24

— page 183 —
2035 Visibility clear but unable to sight or hear. Any target. Vessel may have been a sailboat.
: 2128 Surfaced on course 210°T. Nothing in sight.
: 2130 C/C to 180°T to charge battery, northeast of MONON ISLAND.
: 1200 Posit: 3-54.3 S. 122-55 S. Distance run - 127.9 miles.
: 1400 Fuel used - 540 gallons.

: 1845 Underway on course 180°T, speed 10 kts., patrolling northeast of MONON ISLAND.
: 0000 C/C to 000°T, C/S to 8 kts.
: 0314 C/C to 270°T.
: 0501 Submerged.
: 1123 C/C to 080°T.
: 1400 Sighted two small sailboats broad on port and starboard bows respectively.
: 1845 Surfaced. Speed 11 kts. Fad spent one week in this area and seen little activity. It is impossible to see into KIDDART BAY from sea. Felt sure no worthwhile target or enemy ship had arrived or departed since TAUROG had been in this area. Decided to proceed to SALTERT STRAIT in hopes of better luck.
: 1925 C/C to 130°T.
: 1200 Posit: 3-55.4 S. 122-59.3 N. Distance run - 123.6 miles.
: 1200 Fuel used - 600 gallons.

: 2021 Underway headed for BURTON PASSAGE on course 130°T, speed 11 kts. Brilliant moonlight, glassy sea.
: 021 Sighted sailboat bearing 189°T. When first sighted thought to be a ship. Sail may be very deceptive at night. So called patrol boat of night of the 16th might have been a sailboat.
: 0220 C/C to 14 kts.
: 0226 C/C to 220°T to proceed thru BURTON PASSAGE.
: 0504 Submerged in BURTON PASSAGE opposite WAIRO BAY.
: 1416 Completed transit of passage, C/O to 270°T.

Page 25

— page 184 —
14:38 Sighted small sailboat bearing 205°T headed for BURTON PASSAGE.
: 14:42 Surfaced. Speed 11 kts.
: 14:50 C/C to 277°T.
: 15:00 Posit: 5-49 S. 122-55.5 W.
: 15:20 Distance run - 177.9 miles.
: 15:50 Fuel used - 1150 gallons.

: 21, 1943
: In FLORIS SEA on course 277°T, speed 11 kts.
: Enroute to SALISBURY STRAIT.
: Submerged. Sky overcast, sea calm, visibility good.
: 15:40 C/C to 270°T.
: 15:50 Sighted tower of PALATA ISLAND LIGHT southside of SALISBURY STRAIT bearings 264°T, distance 12 miles.
: 16:53 Sighted sailboat bearing 261°T.
: 17:40 C/C to 090°T.
: 17:45 Surfaced. Hove sailboat to with several rounds from 20m.m. and proceeded close aboard. Sailboat very similar to BRIGADE and typical of boats in this area, namely, sailboat manned by a man and a crew of six with mainsail and jib, a covered cook pit or cabin aft of main mast, and a small hold forward. This boat was headed east and had a crew of six innocent and surprised CELESTIAL natives aboard.
: 18:05 Submerged and set course 090°T.
: 18:53 Surfaced, speed 8 kts. and covered patrol of approaches to eastward of SALISBURY STRAIT.
: 19:00 Posit: 5-44 S. 120-43 N.
: 19:20 Distance run - 168.1 miles.
: 19:30 Fuel used - 1000 gallons.

: January 22, 1943
: Patrolling approaches east of SALISBURY STRAIT on various courses, speed 8 kts.
: 01:18 Sighted sailboat bearing 339°T, distance 2 miles.
: 01:49 Hove sailboat to with two bursts of machine gun.
: 02:05 Put bow to sailboat and secured boat alongside.
: Lieutenant J. H. BARNARD made inspection of boat. Boat was a replica of one stopped in afternoon and manned by an elderly native and

Page 26

— page 186 —
2330
ing silencing.
Surfaced and proceeded to former vicinity of freighter. Sea was covered with debris and oil with strong odor of gasoline. About fifty or more men were in the water howling and yelling. Three having lines to several but they were afraid to take them. Finally went alongside a life raft support by nine men, four of these men were taken aboard. Desired to obtain intelligence information if possible.
Cleared area and set course 3150, speed 10 kts.
Posit: 5-42 S. 120-29.7 E.
Distance run - 142.4 miles.
Fuel used - 665 gallons.

January 23, 1943

Patrolling area east of SALAMIR STRAIT, speed 10 kts. on various weathergy courses. Washed and fed four survivors. Discovered we had picked up four MALAY sailors. Two were from SINGAPORE, one from SOMALIA, and one from SULAWKI. One spoke a little English and one understood it fairly well. Each man could write his own name and home. Ship sunk was former DUTCH SHIP ILYIAH IN LINE and had been loaded with drums of petrol, probably aviation gas or "dope", in SOMALIA. Ship had stopped at MACASSAR and was bound for AMBO. This was a second similar trip for these sailors. There were about forty MALAYs in deck force, eight JAPANESE in engineers force, and two JAPANESE officers. Felt that a MALAY interpreter could obtain some useful information from these men because of their recent visits to strategic ports so decided to keep them on board. They all seemed very intelligent.
On course 2000T northeast of SALIMIR STRAIT. Radar had large pip on port bow, range 2000 yds. Sighted low black objects unidentified and submerged.
Sighted three small boats bearing 080T. Remained submerged, dawn soon breaking.

Page 28

— page 187 —
0833 About 5 miles east of SALISBURY STRAIT c/o 0900. Sighted masts of two ships bearing 38.5°T and commenced approach. Visibility was excellent, clear sunshine, and glassy sea. Soon identified smaller ship as escort and realized we had a valuable target. Escort was to south or on port bow of target so opened track to north. 0852 Saw escort crossing to starboard bow of target and identified target as a light cruiser. (HURRI GLASS). Sighted plane circling over targets. Glassy sea demanded extremely brief exposures and approached demanded high speed since TAUTOG had no torpedoes in stern tubes which would have been ideal for this setup. Went to 70 feet for full speed turn of 115° to obtain a firing course. After completing turn and slowing soon passed over TAUTOG forward. Heard propellers through hull. Raised periscope to obtain firing bearing; target had already crossed bow. Fired list of a four torpedo spread. Cruiser had got by desired firing point and large gyro angles were necessary. Between firing of 3rd and 4th torpedoes, cruiser opened up with after guns. As we were spotted and plane overhead, ordered 250 feet after firing of fourth torpedo. 0912 First of a series of 11 explosions of which first two were believed to be aircraft bombs. Other nine were definitely depth charges and not close. TAUTOG proceeded south on course 150° leaving escort pinching and dropping charges astern. Believe cruiser continued on through STRAIT leaving escort to search for us. Due to few and brief periscope exposures concentrated on target failed to identify screen which was believed to be a destroyer. 1140 Had continued to hear piping at a considerable distance away. Received seven depth charges or bombs again not close and no damage. 1235 A series of 5 depth charges or bombs were heard and felt but no damage sustained.

Page 29

— page 188 —
1508 Came to periscope depth, nothing in sight. Surfaced, speed 14 kts. All torpedoes expended. Took dearture from area to return to base. Sent despatch reporting success and failure to CTF-51. C/C to 290°T to pass through passage west of TIGER ISLAND and south of SALINA ISLAND. Sighted three large ships and two small ones on a northeasterly course bearing 275°. TAUROC's possible course restricted by passage. Had held course to identify ships. Leading ship appeared pure. Her sight thought she was a large passenger liner but as she cleared a land background in moonlight had appeared a flat top. Two ships astern appeared to be smaller passenger ships or transports. C/C to 160°T and went to speed of 16 kts. Had noted escort proceeding aft along column. Shortly after changing course noted escort detach itself from column and apparently head in our direction. Destroyer making full speed and closing us. Submerged. At 150 feet heard destroyer joining. To our dismay for first time this patrol no temperature gradient from surface to 250 feet. This destroyer knew his stuff although he probably had an accurate range when we dove and he certainly ranged us on his supersonic gear. TAUROC suffered two severe attacks of four charges each. First attack close to stern gave us a good shaking, popping fixtures off bulkheads, breaking steam tights, lights, knocking off after antennae cable, etc. After the two attacks we kept him astern and worked around to 270°T headed for open sea. Destroyer searched from port to starboard quarter pinging constantly in our direction. Pinging last heard on a bearing of 160° relative. indicating destroyer had probably left us to rejoin convoy. TAUROC remained submerged on course 240°T to clear area in case destroyer was still around. Posit: 5-43 S. 120-36.5 E. Distance run - 168.5 miles. Fuel used - 1225 gallons.

Page 30

— page 190 —
1943

Submerged on course 290°T north of SUNDAY.
ISLAND headed for LONDON STRAIT and approach.
ing an unidentified ship.
Identified supposed ship as a sailboat.
Surface speed 16 kts.
C/O to 270°T.
Submerged north of LONDON ISLAND to preclude
detection prior passage of STRAIT.
Surface speed 14 kts.
C/O to 203°T and commenced transit of LONDON
STRAIT. Sky overcast, visibility fair.
C/S to 16 kts. Noted various lights from
time to time on BALT and LONDON. BALT black-
out not as efficient as TITAN, or guns have
been lifted entirely.
Completed passage of STRAIT and C/O to 194°T.
Weather squally, visibility good between squalls.
Posit: 7-59.6 S. 116-37.7 E.
Distance run - 228.6 miles.
Fuel used - 2490 gallons.

January 29, 1943

Proceeding to LONDON GULF on course 194°T,
speed 16 kts.
Submerged for trim check.
Surface speed 16 kts. Weather squally,
medium heavy swells from west.
Received distress flag on CTN-51 directing
NAUTOP to emit stop at LONDON GULF and re-
port of sighting of a JAPANESE submarine off
JUST AUSTRALIA.
C/S to 14 kts. rough seas.
Posit: 11-49 S. 115-00 E.
Distance run - 274.9 miles.
Fuel used - 3920 gallons.

January 27, 1943

In INDIAN OCEAN proceeding to PHILATELIC, W.A.,
on course 194°T. Speed 14 kts.
Submerged to check trim.
Surface speed 16 kts. Seas shifting to abaft the
beam.

Page 32

— page 191 —
1200 Posit: 16-20 S. 113-55 E.
Distance run - 310.8 miles.
Fuel used - 4070 gallons.

January 28, 1943

In INDIAN OCEAN on course 194°T, speed 16 kts. (3 engines).
O/C to 1880T entered bombarding restriction lane.
Submerged to check trim.
Surfaced.
Sighted U.S.S. THRESHORING on port beam distance 6 miles. Exchanged recognition signals.
Commenced zigzagging.
Ceased zigzagging.
Posit: 21-45 S. 112-42 W.
Distance run - 361.7 miles.
Fuel used - 534.5 gallons.

January 29, 1943

Proceeding to FRENCH FLAG, in INDIAN OCEAN on course 194°T, speed 16 kts. (3 engines). Taking about 12 kts. good. Seas on port bow.
O/C to 170°T.
O/S to 14 kts. (2 engines).
Commenced test discharge of main storage battery at 31° NUR AFF.
Lookout sighted torpedo wake about starboard beam.
O.C.D. ordered full left rudder. Two lookouts, O.C.D. and J.O.C.D. saw torpedo wake cross bow at distance of about 30 yards. Dark night overcast. Could not sight any ship. Sent to full speed (4 engines).
Reported above incident to CTF-51 by depatch.
Posit: 26-45 S. 112-23 W.
Distance run - 315 miles.
Fuel used - 4930 gallons.

January 30, 1943

In INDIAN OCEAN enroute to FRENCH FLAG, on course 170°T, speed 16 kts.
O/C to 144°T.
Sighted ROUTINE LIGHT bearing 114°T. Disent 15 miles. Began steering various courses at various speeds proceeding to harbor of FRENCH FLAG.
Posit: L.31-325 L.114-54 W.
Distance run - 326.6 miles.
Fuel used - 5060 gallons.

Page 33

— page 197 —
1.3 12.2 11.1 10.7 10.5 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1.5 1.0 0.5

— page 200 —
8. ENEMY AVIATION FACILITIES

Planes patrol SALEM STRAIT, DIAOGHO
PASSAGE and harbor areas of DILLI, I. O. E. M., and
ALISON when ships pass through, enter, or depart.
Patrol craft may escort vessels and search areas
beforehand.

Single escorts observed, screen by crossing at irregular intervals from port to starboard
bow of screened vessel maintaining a distance 1000
to 1500 yards off track.

It is felt that minimum depth setting of
charges is still 150 feet.

JAPANESE have evidently begun to place
great faith in echo ranging and escorts using constantly on 16 K.C.S.S. Long periods of listening
previously reported as enemy A/S tactics were not
observed on this patrol.

When attacked, enemy vessels fire guns
seemingly indiscriminately, probably to prevent
periscope exposures.

When large temperature gradients are
present as obtained in OCEAN PASSAGE and ALISON
area, sound conditions were poor, 4000 yards being about a maximum listening range. Echo ranging is also extremely poor under such conditions. If temperature gradients are known to exist, evasion is simplified and less danger of detection exists during attacks.

9. NAVY DEFENSE IN THE PACIFIC

TAUROG received an excellent overhaul
by tender force of U.S.S. PHILA and relief crew
of 61st Division prior to departure on this patrol.
Troubles encountered were all of a minor nature.
Failure of S3 RADAR to operate properly may be
laid to hurried installation and lack of knowledge
of equipment. Present training gear is unsatisfactory, making searching practically prohibitive.

Page 42

— page 201 —
9. MAJOR DEFECTS OCCURRED CONT'D

Known defects to be corrected consist of:
(a) Renewal of two port mufflers.
(b) JK side of JC sound head has been inoperable for two patrols.
(c) Suspect two leaky main motor coolers.
(d) TAUTOG's bottom should be scraped and painted.
(e) Last docked in March, 1942.
(f) Overhaul of one main engine.
(g) Breech plug 5" gun leaks.

The wiring on board the TAUTOG class submarine is starting to cause trouble and will be a matter of concern in some not too distant future date.

In general the performance of the material of this submarine is considered excellent if not remarkable, and much credit must be given to the overhaul personnel of Squadron STK.

10. REMARKS

(a) HEALTH. Excellent as a whole. On 31 December 1942, S.2, S.2, ships cook striker suffered laceration of the ring and middle fingers of his left hand while cutting meat. S.2, C.2, C.2. Deserves special credit for expert and efficient handling of this painful injury.

(b) MORAL. Crews conduct during patrol was excellent. Old hands who have made all patrols of this war definitely need a change.

In connection with morale the Commanding Officer feels very strongly on the following subject, namely, "Publicity of submarine activity". The so-called "silent service" has been overdone. A firm belief that your work is actually helping to win this war must be maintained and our crews know and hear so little of activity of our submarines other than that one on which they are serving that doubt exists, further strengthened by questions from people ashore. In contrast, the daily blast over the radio of the excellent work of the air-force, has done much to build up the morale in this

— page 202 —
10. REMARKS Cont'd

branch of the service. Airmen are not tempted to talk out of turn ashore, for everyone knows what they are doing. A brief but consistent publicity could also be announced concerning activity of submarines which would not harm operations or give useful information to the enemy. In short, a good press agent would be a healthy tonic for the submarine service, encouraging new recruits, maintaining the confidence and spirit of the veterans and their folks back home.

Page 44

— page 204 —
1. The TAUTOG's fifth war patrol covered a period of forty-seven days of which thirty-seven were spent on station and ten enroute to and returning from patrol areas; this was the first war patrol made by the TAUTOG under the present commanding officer.

2. TAUTOG returned from patrol in excellent material condition and will be refitted by PELIAS in preparation for next patrol. Examination of the condition of the bottom paint made by divers does not indicate the necessity of docking TAUTOG at this time.

3. Health and habitability were excellent; no sickness or any consequence was reported and officers and crew returned in good physical condition.

4. The areas assigned were thoroughly exploited by the TAUTOG in an intelligent aggressive manner; numerous contacts were made and determined efforts were made to develop them into attacks. The percentage of torpedo hits made was only fair; except for the first three torpedoes fired on the attack of January 11, misses may be attributed to control errors coupled with long firing ranges, unfavorable track angles, and, in the case of the last attack, large gyro angles. On the attack of January 11 there was opportunity for a careful approach; the Commanding Officer felt that he had the correct data on the target and should have hit it with at least one of the first three torpedoes fired; using the data furnished with the patrol report all three of those shots plot as wide misses ahead of the target. These data are evidently in error however as they do not produce the same gyro angle, when set on the T.D.C., as that shown in the patrol report; this matter is being further investigated in an effort to clear up some of the inconsistencies of this attack. Some of the explosions heard may have been caused by depth charges discharged by a Y-gun or similar thrower.

— page 205 —
5. The Squadron Commander considers that this was a well conducted patrol and extends to the new Commanding Officer, officers and crew a "Well Done". The TAUTOG is credited with the following:

| SUKK | 1 AP | 1 AK | 1 CL

— page 206 —
309
Serial 0266
U.S.S. TROUT (35202) FLAGSHIP
February 4, 1943.

SECOND EDITOR'S NOTE:
C.C. TROUT CONFIRMED
SS1199/A16-3 Serial 01
of January 30, 1943.

From: The Commander Task Force Fifty One.
To: The Commander in Chief, U.S. FLIGHT.
Via: The Commander Southwest Pacific Force.

Subject: U.S.S. TROUT - Fifth War Patrol - Comment on.

1. Forwarded concurring in the remarks contained in the first endorsement.

2. Subsequent to the submission of this report it was discovered that only two torpedoes were fired during the attack of January 22nd. One torpedo failed to leave the tube. The cause for this failure is being investigated.

3. Other instances of apparent late explosions of torpedoes, similar to the one observed after firing the third torpedo during the attack of January 11th, have been reported. In this case, however, it is noted that zero depth setting was used on all torpedoes and hits, if made, should have resulted in contact explosions on the target. It is probable that the seven similar explosions heard during this attack can be attributed to depth charges dropped by the target.

4. With reference to the remarks contained in paragraph 10 of the basic report, current instructions for the administration of relief crews now provide for the replacement of one section of the regular crew of each submarine after each patrol. In the matter of "Publicity of Submarine Activity", the Task Force Commander concurs with the Commanding Officer as to the benefits to morale which might result from greater publicity. However, it is considered that any publicity of results of current operations will be of great assistance to the enemy in that it will advise him as to the exact cause of his losses, as to the effectiveness of his counter attacks, and will spur him to greater endeavors to increase the effectiveness of anti-submarine measures.

— page 208 —
3.09
Serial 0194
CONFIDENTIAL
CONFIDENTIAL
THIRD ENDORSEMENT to
C.O. TAUTOQ Conf. ltr.
SS199/A16-3 Serial 01
of January 30, 1943.

From: The Commander Southwest Pacific Force.
To: The Commander in Chief, U.S. FLEET.
Subject: U.S.S. TAUTOQ - Fifth War Patrol.
1. Forwarded.

Copy to:
Vice Opnav

1955 MAR
10
U.S. FLEET
COMMANDER IN CHIEF
YEAR
Y

— page 209 —
35199/AL6-3
Serial 08

DECLASSIFIED
U. S. S. TAUROG
Chief of Fleet Office,
San Francisco, Calif.,
April 19, 1943.

From: The Commanding Officer,
To: The Commander in Chief, U.S. Fleet,
Via: Official Channels.

Subject: Far Naval Report, (6th War Patrol).

Enclosure: ✓ (a) Far Patrol Report, Period February 24, 1943, to April 15, 1943.

1. Enclosure (A) is forwarded herewith.

4. 3. SIGNATURES

DECLASSIFIED

49512 FILMED

— page 211 —
1440
1900
2106
1200
0405
0600
0527
0634
1042
1307
1816
1200

In INDIRECT: OCEAN on course 045°T, speed 9 knots.

— page 212 —
3000
: 2210
: 1200

: 1347
: 1645
: 1735
: 2154
: 1200

: 0649
: 0717
: 1305
: 1023
: 1500
: 1514
: 1200

: 0649
: 0717
: 1305
: 1023
: 1500
: 1514
: 1200

: 0342
: 1445
: 125-45E
: 0342
: 1445

— page 213 —
0745 C/O to 0170T.
: 1235 31st Ind. 1030, distance about 15 miles.
: 1543 C/O to 3350T.
: 1553 Submerged to approach transit.
: 1906 Surface. Speed 16.5 knots.
: 2009 C/O to 0190T and commenced passage of 1000 miles.
: 2200 Completed passage.
: 2300 C/O to 14 knots.
: 1200 Transit: 10-07 S. 115-20 S.
: 1200 Distance run - 322 miles.
: 1200 Fuel used - 5120 gallons.

Iach 4, 1942

On surface on course 09:00, speed 14 knots.

0208 C/O to 0500T.
: 0330 Sighted 33 miles. Headed for 30 miles.
: 0617 Submerged.
: 1849 Surface. Speed 14 knots.
: 1919 C/O to 0250T.
: 2145 Sighted ship bearing 0750T. 11 knots. Radar range 5500 yards. TAUWOX in pass on west of LAROS BATT and first guess was 1000 miles.
: 2200 TAUWOX. Took position at 1000 miles. Surface approach. Sonar established approximately course of target to 1000 miles. Position 1000 miles. Last favorable approach position 1000 miles. Target to 1000 miles. Range 1000 miles. Sonar contact 1000 miles. TAUWOX 1000 miles. TAUWO

— page 215 —
0152
0204
0345
0300
0334
0301
1032
1153
1207
1219
1316
1646
1212
1200

Ship: USS ISLAND
Bearing: 2800T, distant 5 miles.
Speed: 9 knots.
C/G to 315T, speed 9 knots.
C/G to 0000T.
C/G to 14 knots.
C/G to 2000T.
Submerged.
Sighted smoke on horizon bearing 3400T. Sent to battle stations and commenced approach, smoke bearings changing to right so C/G to 0700. At 1100 sighted mast of ship and determined that it was making a slow speed of 2 to 3 knots. And at intervals would make false smoke. TURRET had been making high speed to attack position ahead on normal course and not closing the range.
Enemy C/G to 1600T and TURRET closed course to close for attack.
Sighted a/3 vessel similar to convoy to attack and to westward of target. Target is peculiar both in appearance and movement. Sticks marks forward and aft with a cluster of toons, goal post mast aft of forward stick mast, split superstructure, narrow black bridge, high slender stack, narrow openings ventilators on quarter structure aft of stack. Her conduct and escort indicated a slip, only other possibilities, - a cable layer, or mine layer. Abandoned approach as considered an attack would jeopardize assigned special mission of TURRET which was planned for this evening.
Ship C/G to east.
Ship C/G to northeast and disappeared over horizon soon thereafter.
Sighted smoke of some ship bearing 3500T. TURRET 15 miles north of island. C/G to 1500T. Bearings of smoke drew to left indicating C/G was probably returning to BULKER.
Surfaceed. It hit was exceptionally dark though star sights were obtained. Proceeded to carry out operations in accordance with an order of 051.1
Posit: 1-45 S. 117-15 E.
Distance run - 130.6 miles.
Fuel used - 1555 gallons.

March 7, 1943

Operating in accordance with special instructions assigned by Task Group Commander.

Page 7

— page 216 —
0254
Completes assigned tasks, proceeding at flank speed
15 knots.
Submerged northeast of 2nd and 3rd U.S.L. Set course
015°E and conducts periscope patrol. All lands taken-
ing a needed and observed rest.
1715 C/O to 090.
Surfaced. Ship overcast, speed 9 knots. Interlocking to
eastward to a previously reported JAP rendezvous post-
tion.
2305 C/O to 2700.
Posit: 1-35° S. 117-37 W.
Distance run - 240.9 miles.
Fuel used - 14.35 gallons.

Ibrahim, 1, 1952

East of 2nd and 3rd on course 2700, speed 9 knots.

Submerged. Rain, calm sea. Visibility: fair. Position
doubtful.
Surfaced on course 090°. Poor visibility, hazy calm
sea. By L.R. should have been due east of 2nd and 3rd.
Appearance of star, floating log, etc., and soundings
during day, ranging from 30 to 50 fathoms, led us to
believe that he had set to northeast and we were
off north of 003°N.
C/O to 023°N, speed 12 knots. Headed for TG. 2nd and 3rd
Posit: 1-30 S. 117-13 W.
Distance run - 157.3 miles.
Fuel used - 640 gallons.

March 9, 1952

On surface patrolling route 2nd and 3rd to TG. 2nd and 3rd
L.R., on course 033°T, speed 12 knots.

Overcast, hazy, no land in sight. C/O to 270°. Decided
to stay on surface until position could be confirmed.
Sighted land dead ahead.
C/O to 180°. Soundings 25 fathoms.
C/O to 090°T and took soundings at regular intervals.
Crossed 100 fathom curve. Determined position northeast
south of 003°N after which continued to run up from
over 30 hours indicating little air and current.

Page 8

— page 217 —
1126 C/O to 1500 and submerged.
: 1445 C/O to 1500.
: 1555 Surface, speed 9 knots.
: 1200 Point: 60-22 S. 117-55 E.
: Distance run - 241.8 miles.
: Fuel used - 1465 gallons.

March 10, 1943

Patrolling possible enemy route I.D. 3-11/1/43. On
course 0006 and 1500.

0533 Sighted object bearing 059° and submerged. C/O to
approach.
0545 Identified object as small boat or trawler, no marks
but had deck house aft amn canopy from deck house to
bow.
0641 Made battle surface at range of about 400 yds. Boat
had J.F. flag painted on bow; was apparently anchored
and had noted a small black buoy about 100 yds. off
boat's beam. She could have been a merchant or more
probably a sound listener boat. Towed several men on
board. Opened up with all gun for air practice.
Second shot of 5" exploded vicinity of deck house, left
boat a wreck though she still managed to float.
Sighted object on horizon and submerged. Patrolled to
eastward of sampan but sighted no ship. Object was
probably a floating log.
1431 Sighted smoke bearing 050°, heard firing on sound gear
from that bearing.
1500 Sighted mass of came ship seen on 6th March. Observed
ship at ranges from 6000 to 9000 yds. until satisfied no
A/S vessel in vicinity, then commenced an approach. She
had been noted on several courses at speeds from 3 to 5
kts. but after approach started she disappeared on bear-
ing 0350. Estimated course northwest to east.
1908 Surfaced on course 050°, speed 12 kts. Towed to inter-
cept ship.
2245 C/O to 2200.
1200 Posit: 00-41 S. 117-56 E.
Distance run - 160.4 miles.
Fuel used - 300 gallons.

Page 9

— page 218 —
0600
1705
1851
1200
0125
0604
1315
1845
1925
2018
2200
1200

Jarrett, 11, 1943

Patrolling east of BALTIMORE on course 270°, speed 10 kts.

Set patrol on courses 316° and 136° with distance run about 10 miles in either direction.

Submerged.

Sighted smoke bearing 314°, went to full speed to close.

Smoke last seen steady bearing. Visibility decreasing, assumed we were closing, target, ran submerged coming up to 40 feet to search with radar.

Surfaced on course 300°, undetected course of target, proceeded at slow speed in case possible, target had not surfaced us.

C/S to 15 kts.

C/C to 14, 18° and took course from 14° N. W. distance run: 1°-10' S. 117°-34' E.

Distance run: 168.3 miles.

Fuel used: 725 gallons.

Page 10

— page 219 —
0245
3557
1852
1920
1200
0540
0550
0700
1111
1120
1309
1311
1315

U. S. S. TAUTOPG

U. S. S. TAUTOPG

March 13, 1943

In accordance with the course 1500, speed 15 knots.
Submerged. Visibility fair, overcast and equally
turbid. Sighted south-east of 12 knots.
Distance run - 212 miles.
Fuel used - 1460 gallons.

March 14, 1943

In accordance with the course 1700, speed 12 knots.
Visibility fair.
C/C to 1300.
Sighted island bearing 1880. Position doubtful. Island
had a pearance of Dreadnought. But no light tower was
on island. Also indicated a current of 7.1t, set 3050t
for a period of last 11 hours.
Submerged to patrol east and southeast approaches to
Dreadnought.

Sighted smoke bearing 0200. C/C to head for smoke.
Determined smoke from diesel engine ship. Rearm
changing to 10t. C/C to 3300t and ran at full speed
between periscope exposures.

With 1700 on course 3000 target bore 3300t. Appear
ance of smoke indicated range was being maintained al
most constant, though her bearing was drawing ahead.
Twice during this chase had seen a stick mast well for
ward of smoke when had 10 feet of airscope exposed.
Determined ship was at 10 feet of airscope north of
Dreadnought and thence for 12 miles. At 12 miles she
saw overcast within heavy rain in various scatters.
Target's smoke disappeared in heavy rain equally. Estimate
at 10t. C/C to about 15t. SIGHTING NORTH OF DREADNIGHT.
Began to catch fire. Surflaced and sent to full speed all engines
in hopes of catching her in rain equally.
Sighted two engine patrol plane in direction of target
on a westerly course, altitude about 1000 feet. Submerged. Weather soon cleared. Could not see plane or

Page 11

— page 223 —
1200
Posit: 4°-09' 3. 121°-19.4' N.
Distance run - 164 miles.
Fuel used - 725 gallons.

March 20, 1943

Patrolling entrances to POLAR, DIPLOMAT, GULF or BOTH or BOTH on various courses at speed 10 kts.

Submerged: 0530
Intercept any ship that left port via regular north-east or east or possible middle exit between POLAR and DIPLOMAT.
Surfaced: Continued dry patrol at speed 10 kts. Decided to remain extra day to investigate tall stack which indicated smelting or large ore plant of some kind. This would be a good target for bombardment prior to a departure rather than a U.S. attack at least of some nuisance value in this area.
Posit: 4°-11' 5. 121°-21.5' E.
Distance run - 155 miles.
Fuel used - 600 gallons.

March 21, 1943

Patrolling southwest of POLAR, DIPLOMAT, GULF or BOTH on various courses at speed 10 kts.

Submerged: Proceeding to reconnoiter channel north of POLAR and DIPLOMAT.
On various courses of proceeding to a position south of POLAR, DIPLOMAT to obtain closest and best possible submerged view of tall stack. Decided that numerous small sailboats in this area. Convincing that only business is fishing; which from our observation are excellent. U.S. surface previously evident in school of yellow tail and all hands, had fresh fish for breakfast.
On course 30°-6'. 3000 yards. 121°-19.4' N., 125°-45' E., 15 miles distant from POLAR. Steady on still surrounded by red earth or slag piles. Tied a light similar earth, plant, buildings and pier at the point. Position 4°-15'-40' S. 121°-31'-20' W. distant 2 miles.

Page 15

— page 224 —
1718
C/C to 025°T and sighted attack on ship estimated to be in harbor at 1,000 yds. Range of plot 13000 yds. Could not see masts so until surfacing was not sure but what this stack was not also located on shore. Plan being carried out was to approach shoals as close as possible submerged, surface on a heading to clear area at about 1500, shell stack and any possible targets in vicinity of 1,000 yds. Fire proceeded at full speed as twilight came on shelling. The ship was sighted at 1,000 yds. Surface, dead in water, heading 2200T. Sighted ship at anchor bearing 65°T, distance 13000 yds. Commander fire with 5 gun. Fire four shots over all very close, just short of target, then gun misfired. Repeated attempts to fire gun were made. Powder charges were changed and firing pin assembly removed and returned to no avail, the gun would not fire. Lihts on the coast immediately blacked out. Flashes similar to gunfire, but probably lighting appeared in vicinity of ship and 1,000 yds. The 1,000 yds. was joined. If the gun could have fired with this perfect set up at an anchorage only with 1,000 yds. range, there was no doubt that the ship would have been sunk or permanently damaged and two or more planes wrecked. Went to flank space, 15s. C/C to 220° to clear area. A ship anchored at 1,000 yds. on the coast but approached within torpedo range submerged and a surface approach for a torpedo shot would require a long run through a channel bounded by rocks and shoals. C/C to 130° to clear area of 1,000 yds. Discovered gun misfire caused by swell-ing of fire indicating an attacker short due to ab-sorption of oil or water, resulting in binding against walls of striker sleeves. Insultation is only for elec-trical firing and is unnecessary for a purely percussion system used on submarines. Posit: 4°-07' 3. 121-15.5' 3. Distance run - 157,4 miles. Fuel used - 625 gallons.

2021
2227
C/C to 130°T. Discovered gun misfire caused by swell-ing of fire indicating an attacker short due to ab-sorption of oil or water, resulting in binding against walls of striker sleeves. Insultation is only for elec-trical firing and is unnecessary for a purely percussion system used on submarines. Posit: 4°-07' 3. 121-15.5' 3. Distance run - 157,4 miles. Fuel used - 625 gallons.

In 1943, a process to turn the 1,000 yds. submarine patrol, speed 16 knots, on course 123°T.

Page 16

— page 225 —
0217 C/C to 0900T.
: 0535 Submerged south of BURTON PASS.
: 0600 C/C to 0330.
: 1852 Surface, speed 14 knots. Course 0350T, proceeding through BURTON PASS.
: 2227 Completed transit of passage, C/C to 0000T.
: 1200 Posit: 5°-51' S. 122°-58' W.
: Distance run - 243.1 miles.
: Fuel used - 2700 gallons.

Page 17

PROCEDURE:
1. Transcribe to [NAVY] [NAVY] on course 0000T, speed 14 knots. Sky overcast, rain squalls.

2. C/C to 3070T.
3. C/C to 0000T. Sighted northeastern point BURTON ISLAND.
4. C/C to 2700T.
5. Submerged for daylight patrol north of [NAVY] ISLAND.
6. [NAVY] south of north S. BURTON ISLAND. Sighted enemy cargo ship broad on port bow. Commenced approach. Initial range 5500 yds. [NAVY] failed to sight her earlier due to poor visibility, unfavorable background, and excellent camouflage. Sent to full speed and swung left to firing course of 155°.
7. Fired spread of three torpedoes. Could follow smoke of one torpedo to target. Believe all passed ahead of target. Later plot of data indicated a speed of 9 knots. [NAVY] used 11.5 knots. Target turned to present at 180° angle on the bow, opened distance and then returned to her base course of 070°T. Two torpedoes made loud explosions at end of their run.
8. C/C to 0800T to trail target. No planes were observed, though enemy had stood out from their reported active air base at [NAVY] ISLAND.
9. Surface. Believe enemy leading to northward of BURTON ISLAND. Set course 0700T, speed 16.5 knots.
10. Posit: 3°-54' S. 122°-55' W.
11. Distance run - 213.5 miles.
12. Fuel used - 1570 gallons.

Page 17

— page 226 —
0520
: 0537
: 1830
: 1200

: 0521
: 1830
: 1200

: 0515
: 1825
: 1200

: 0502
: 0521
: 1200

: 0521
: 1830
: 120

— page 227 —
1554
1832
2035
2223
1200

In 1943, an enemy submarine torpedoed and sank the USS BURU ISLAND. The submarine was 1250 tons, speed 15 knots, 0900 hours, 16.3 miles. Fuel used 570 gallons.

March 28, 1943

In BURU ISLAND, the submarine torpedoed and sank the USS BURU ISLAND. The submarine was 1250 tons, speed 15 knots, 0900 hours, 16.3 miles. Fuel used 570 gallons.

C/0 to 0400, 0510
Submerged. Decided to patrol on north and south courses east of the island.

Sighted a ship in rain squall bearing 2010, 1940G on course 1600, 15.3 miles. Attributed angle on the bow 300 starboard range 0000 yards.

Target appeared to turn toward us. Aero angle on the bow. C/0 to head for target. Unable to identify due to visibility. It was now raining all around 1940G.

Enemy disappeared in rain.

Had continued to run on last bearing of target. Visibly-ility improving. Concluded enemy probably showed us her stern rather than bow. Continued at high speed but sighted nothing.

Crashed search and continued patrol. Could see at times well into 1940G. 24 and could also take entrance 1940G.

BURU ISLAND, 1837
1837
1903
1200
1800

— page 228 —
0550
: 1010
: 1915
: 1200

In BALTIMORE, on route to the South of Italy, 1942.

0409
: 0431
: 0515
: 1800
: 2305

C/O to 0430T. 1st Bn. 2nd Bn. 3rd Bn. 4th Bn. 5th Bn. 6th Bn. 7th Bn. 8th Bn. 9th Bn. 10th Bn. 11th Bn. 12th Bn. 13th Bn. 14th Bn. 15th Bn. 16th Bn. 17th Bn. 18th Bn. 19th Bn. 20th Bn. 21st Bn. 22nd Bn. 23rd Bn. 24th Bn. 25th Bn. 26th Bn. 27th Bn. 28th Bn. 29th Bn. 30th Bn. 31st Bn. 32nd Bn. 33rd Bn. 34th Bn. 35th Bn. 36th Bn. 37th Bn. 38th Bn. 39th Bn. 40th Bn. 41st Bn. 42nd Bn. 43rd Bn. 44th Bn. 45th Bn. 46th Bn. 47th Bn. 48th Bn. 49th Bn. 50th Bn. 51st Bn. 52nd Bn. 53rd Bn. 54th Bn. 55th Bn. 56th Bn. 57th Bn. 58th Bn. 59th Bn. 60th Bn. 61st Bn. 62nd Bn. 63rd Bn. 64th Bn. 65th Bn. 66th Bn. 67th Bn. 68th Bn. 69th Bn. 70th Bn. 71st Bn. 72nd Bn. 73rd Bn. 74th Bn. 75th Bn. 76th Bn. 77th Bn. 78th Bn. 79th Bn. 80th Bn. 81st Bn. 82nd Bn. 83rd Bn. 84th Bn. 85th Bn. 86th Bn. 87th Bn. 88th Bn. 89th Bn. 90th Bn. 91st Bn. 92nd Bn. 93rd Bn. 94th Bn. 95th Bn. 96th Bn. 97th Bn. 98th Bn. 99th Bn. 100th Bn. 101st Bn. 102nd Bn. 103rd Bn. 104th Bn. 105th Bn. 106th Bn. 107th Bn. 108th Bn. 109th Bn. 110th Bn. 111st Bn. 112nd Bn. 113rd Bn. 114th Bn. 115th Bn. 116th Bn. 117th Bn. 118th Bn. 119th Bn. 120th Bn. 121st Bn. 122nd Bn. 123rd Bn. 124th Bn. 125th Bn. 126th Bn. 127th Bn. 128th Bn. 129th Bn. 130th Bn. 131st Bn. 132nd Bn. 133rd Bn. 134th Bn. 135th Bn. 136th Bn. 137th Bn. 138th Bn. 139th Bn. 140th Bn. 141st Bn. 142nd Bn. 143rd Bn. 144th Bn. 145th Bn. 146th Bn. 147th Bn. 148th Bn. 149th Bn. 150th Bn. 151st Bn. 152nd Bn. 153rd Bn. 154th Bn. 155th Bn. 156th Bn. 157th Bn. 158th Bn. 159th Bn. 160th Bn. 161st Bn. 162nd Bn. 163rd Bn. 164th Bn. 165th Bn. 166th Bn. 167th Bn. 168th Bn. 169th Bn. 170th Bn. 171st Bn. 172nd Bn. 173rd Bn. 174th Bn. 175th Bn. 176th Bn. 177th Bn. 178th Bn. 179th Bn. 180th Bn. 181st Bn. 182nd Bn. 183rd Bn. 184th Bn. 185th Bn. 186th Bn. 187th Bn. 188th Bn. 189th Bn. 190th Bn. 191st Bn. 192nd Bn. 193rd Bn. 194th Bn. 195th Bn. 196th Bn. 197th Bn. 198th Bn. 199th Bn. 200th Bn. 201st Bn. 202nd Bn. 203rd Bn. 204th Bn. 205th Bn. 206th Bn. 207th Bn. 208th Bn. 209th Bn. 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— page 229 —
0602
Submerged to patrol passage to Manila via MATILAS
S.S. 11.
1755
Surfaced on course 120°, speed 10 knots. Decoded to
2005
6/6° to 180°.
1200
Rasit: 4°-02.5' S. 135°-33.2' W.
Distance run - 164.5 miles.
Fuel used - 625 gallons.

April 1, 1943

Borrowed to DOBO, ARU 11DS on course 160°, speed
10 knots.

0400
Poor visibility, rain scuttles. Jogging circling waiting
for dawn.
0439
Sighted USS 1511D bearing 050°. C/O to 000°.
speed 4 knots.
0514
Submerged.
0530
C/O to 090° to approach beach and identify same.
0713
Sighted radio to one of DOBO bearing 155°, distance
11 miles. Transmitted U.S. Light structure as not visible
and has probably been removed or camouflaged. Continued
patrol 1 to 5 miles off entrance DOBO on north and south
courses.
1753
Surfaced on course 265°, speed 8 knots.
2223
C/O to 065°.
1200
Rasit: 5°-43' S. 134°-05' W.
Distance run - 1714 miles.
Fuel used - 705 gallons.

April 2, 1943

On course 065° proceeding toward DOBO, ARU 1511D to
repeat previous days patrol.

0410
Sighted land. Weather rainy in sectors. C/O to 000°.
0433
Submerged out of DOBO.
0633
On course 130° approaching DOBO. C/LR. to search
same for possible shipping.
0758
As close to DOBO through as could be attained without
backing out. Made 15 knot periscope exposure. To ship-
ping could be sighted. Sighted and checked appeared
dilapidated. C/O to 300°.

Page 21

— page 230 —
0847
About 4 miles off beach. C/C to 100° and increased speed to obtain a position to search area south of 35° 12' N, 125° 45' E.
1116
South of island. To shipping in sight. C/C to 000° to patrol entrance to 100°.
1746
Surfaced on course 000°, speed 14 knots.
1846
C/C to 312°.
1200
Point: 5°-51' S., 124°-06' E.
Distance run: 153 miles.
Fuel used: 560 gallons.

April 23, 1943

In 1943, a procedure to search for enemy submarines was developed. The procedure was as follows:
C/C to 000°.
Submerged 3 miles east of 35° 12' N, 125° 45' E.
0553
C/C to 040° to enter anchorage.
0650
Determined no ships in bay. C/C to 250° to clear bay and conduct patrol on possible enemy shipping lane off coast.
1806
Surface course 100°, speed 14 knots.
1853
C/C to 145°.
2328
Night patrol near enemy position, 235° N, 125° E.
2352
C/C to 200°.
1200
Point: 3°-41.3' S., 125°-39' E.
Distance run: 228.3 miles.
Fuel used: 1790 gallons.

April 24, 1943

In 1943, a procedure to visit the vicinity of the enemy, was developed. The procedure was as follows:
C/C to 270°, 0/2 to 6 knots.
Be an steering north and south courses to maintain position about 7 miles off 35° 12' N, 125° 45' E.

Page 22

— page 231 —
0440
1801
1852
2250
1200
0020
0532
0513
1600
1927
2309
1200

Submerged for patrol. Coast vicinity of the island.
Surfaced on course 21.5N, speed 14.1kts.
0/6 to 2600T.
Sighted a northern island of the island 13.1DBS
bearing 2190N, distance 17 miles.
Posit: 5-53°1 S. 139° N.
Distance run: - 205.1 miles.
Fuel used: - 1630 gallons.

April 21, 1942

In B.D. San proceedings to north coast TITAN on course 21.5N, speed 14.1kts.
Sighted a 10.1DBS bearing 290°T, distant 47 miles.
Suspended. Clouds favorable to planes.
Surfaced, speed 14.1kts.
0/3 to 16.5 kts.
Sighted a 10.1DBS bearing 260°T, distant 17 miles.
Posit: 7-09°1 S. 129°-43T.
Distance run: - 239.0 miles.
Fuel used: - 1940 gallons.

April 6, 1943

Standing toward TITAN, on course 21.5N, speed 15.5 kts.

Sighted a 10.1DBS and no chance coast TITAN.
0/6 to 2520T.
0/3 to 16.5.
Suspended to reconnaissance north coast TITAN.
Sighted two boats about 6 miles off motor launch
with blunt bows. Main line was 4-4-4-4-4 flag and were
evident by proceeding from 10-4

— page 232 —
0217
Sighted 20/10. 10/10 on port bow.  Surface visibility hazy.
0517
Bombs dropped.  As visibility improved determined position north of 20/10. 0/0 to 2100.
707
Sighted smoke bearing 21 convoy on several ships and commenced approach.
0730
Convoy composed of five ships in two columns.  A destroyer escort was sighted ahead as convoy and patrolling between columns.  All ships were in close column of sight.  Destroyer proceeded to right of right column in close to 20/10.  The two ships were sighted on a track.  The ships had been struck by a torpedo and had been hit by torpedo.  The ships were sighted on a track.

— page 234 —
1258
Rad arrived. Cont'd

1258
Rad approached to within 3000 yards of destroyer when sound reported her underway. This fact was quickly verified by periscope. Went to full speed and C/C to 1710.

1258
Destroyer had also turned 130° and was now proceeding at slow speed south along coast presenting a 90° port angle on the bow.

1305-20
Fired spread of three torpedoes. First torpedo hit as-tern 2 minutes 10 seconds after firing. Saw other two torpedoes explode on board one ahead and one astern 2 minutes 40 seconds and 2 minutes 13 seconds after they were fired. At this time two bombs exploded astern of TURCO, went to 150°. Jotted reported destroyer scores stopped and grounding out breaking up noises. Ten minutes later plane up to periscope depth, sighted destroyer boarded, headed over about 100, down by stern. Sighted artillery sunk vessel to right or destroyer and banged similar to 1300ft 97 over destroyer. She dipped her wing and headed for us. TURCO retired on course 1710.

1840
Surfaced.

1853
C/C to 1360m proceeding to DILI, speed 10.5 kts.

1200
Posit: 5-31° S. 123-0° N.
Distance run - 17.5 miles.
Fuel used - 1005 gallons.

April 10, 1942

In HORSE SL. enroute from course 1360m, speed 15.5 kts.

1240
C/C to 18 kts.
Sighted Admiral ISLID on after-ward bow.
Submerged. Proceeded to ORI. 1. 1942. CDR.
Surfaced in ORI. 1. 1942. Speed 10 kts. course 2500m.

1200
Posit: 8-23° S. 125-15° S.
Distance run - 248.7 miles.
Fuel used - 2530 gallons.

April 11, 1942

In ORI. 1. 1942 proceeding to FLORE SHUTT on course 2700m, speed 10 kts.

Page 27

— page 235 —
0150
Sighted exhaust of plane bearing 0000T drawing aft rapidly.
C/O to 0000T.
Sternward to conduct patrol of entrance to FLORIS STAR II.
Surfaced course 2400T, speed 10 kts.
C/O to 2700T.
Rost: 8-40T S. 123-03.5T.
Distance run - 185.3 miles.
Fuel used - 1020 gallons.

: 0525
C/O to 0000T.
Sounder.
C/O to 055T proceeding to reconnoiter settlement at eastern end of bar. Sonar was detect taking, through periscope could be seen numerous volcanic peaks. Steam was rising from sides and crater of 1700m I.O.T. Proceeded to within 10 miles of settlement. To shipping present, sighted some small mines and shallows.
Surfaced on course 1800T, speed 10 kts.
C/O to 2700T.
Rost: 8-50T S. 121-35T.
Distance run - 170.2 miles.
Fuel used - 845 gallons.

: 1850
C/O to 0000T.
Sounder.
C/O to 055T proceeding to reconnoiter settlement at eastern end of bar. Sonar was detect taking, through periscope could be seen numerous volcanic peaks. Steam was rising from sides and crater of 1700m I.O.T. Proceeded to within 10 miles of settlement. To shipping present, sighted some small mines and shallows.
Surfaced on course 1800T, speed 10 kts.
C/O to 2700T.
Rost: 8-50T S. 121-35T.
Distance run - 170.2 miles.
Fuel used - 845 gallons.

: 0401
C/O to 0000T.
Sounder.
C/O to 055T proceeding to reconnoiter settlement at eastern end of bar. Sonar was detect taking, through periscope could be seen numerous volcanic peaks. Steam was rising from sides and crater of 1700m I.O.T. Proceeded to within 10 miles of settlement. To shipping present, sighted some small mines and shallows.
Surfaced on course 1800T, speed 10 kts.
C/O to 2700T.
Rost: 8-50T S. 121-35T.
Distance run - 170.2 miles.
Fuel used - 845 gallons.

: 0522
C/O to 0000T.
Sounder.
C/O to 055T proceeding to reconnoiter settlement at eastern end of bar. Sonar was detect taking, through periscope could be seen numerous volcanic peaks. Steam was rising from sides and crater of 1700m I.O.T. Proceeded to within 10 miles of settlement. To shipping present, sighted some small mines and shallows.
Surfaced on course 1800T, speed 10 kts.
C/O to 2700T.
Rost: 8-50T S. 121-35T.
Distance run - 170.2 miles.
Fuel used - 845 gallons.

: 1110
About two miles from I.O.T. No ship in present.
Used a prominent white yarand nod on DUTCH charts for navi. station. Believe air field to southeast on a plateau above village.

Page 28

— page 236 —
1857
1910
1200

In 3/4" typewriter, course 2000°, speed 8 kts.
C/O to 2900m.
Rost: 9°-36 S. 120°-16' W.
Distance run - 171.1 miles.
Fuel used - 725 gallons.

April 14, 1943

In 3/4" typewriter, course to southern entrance S. 32° 54' W.
On various courses periscope south of S. 32° 54' W.
Submerged and combatant depth control.
Surfaced. Speed 10 kts.
With depth charge.
Distance run - 150.2 miles.
Fuel used - 590 gallons.

April 15, 1943

In 1/4" typewriter, on course 203°, speed 16 kts. Enroute F4-1 T4-1.

0608
0637
1200

After lookout sighted single engine low flying monoplane, submerged to visual detection.
Surfaced. Could not sight plane in periscope.
Rost: 12°-50' S. 117°-01' W.
Distance run - 321.5 miles.
Fuel used - 3760 gallons.

April 16, 1943

In I. D. I. C. I. on course 208°, speed 16 kts. Enroute F4-1 T4-1.
At sea. 11 kts. Light speed from south.

0715
2057
1200

C/O to 1950m.
C/O to 2100m.
Rost: 17°-52' S. 113°-20' W.
Distance run - 368.5 miles.
Fuel used - 5530 gallons.

Page 29

— page 241 —
6. AIRCRAFT SIGNED
Con-
tact
No. Date Time Position Description & Disposition.
3-14-43 1315 5-18 S. Twin engine patrol plane.
118-40 S.
4-9-43 0945 5-29 S. Patrol or medium bomber
123-02 S. similar to IITSUKISHI 97.
4-9-43 1325 5-26 3. Patrol or medium bomber
123-04 S. Enlist to IITSUKISHI 97.
4-15-43 0600 11-27 S. Single engine, low winged
114-47 S. monoplane.

7. TRANSCRIPTION OF ARTICLES

Attack No. 1

Date - 3-4-43
Time - 2145
Attack type - Battle surface. Right surface torpedo at reach
    followed by battle surface and cone.
Target - 3000 ton - 2cm. active sub structure - flush
    deck aft. - maximum speed 14 knots - raised
    by. To hits. Five rounds were fired at range
    of 3 to 6000 yards. Target course 315, speed
    15 - 17 knots.
Subs course - Var.
Subs speed - 16 to 17 knots.
Target course - Var.
Target speed - 15 to 17 knots.
Range - Var.
Marks - 3000 to 6000 yards.
Dangers - 15 cm. armament.

Page 34

— page 242 —
7. ENCRYPTION OF CRITICAL CONTENT

Attack No. 2

Date: 2-10-43
Time: 0535
Attack type: Submerged aircraft and battlesurface, 5ft - 20m, - 30 calibers.
Target: 40 motor saugan. Tired 7 rounds 5', 2 hits. Target was anchored. Boat left wrecked.
Subs speed: Var.
Subs course: Var.
Target speed: 0
Range: 1000 yards
Remarks: No casualties.

Attack No. 3

Date: 3-11-43
Time: 1730
Attack type: Battle surface from submarine, 20m, - 30 calibers.
Target: 30 calibers.
Subs course: Var.
Subs speed: Var.
Target course: Var.
Target speed: Var.
Range: Bordered.
Remarks: No casualties.

Attack No. 4

Date: 3-17-43
Time: 0600
Attack type: Torpedo approach, submerged depth at attack.
Target: Beach at water.
Tube: 32.
Loaded: 16
Subs course: 3,000
Subs speed: 5 knots.
Target course: Stop ed.
Target speed: Stopped.
True bearing: 3,000
Aero angle: 0
Aero: 140°
Range: 1900 yards.

Page 35

— page 243 —
7. PARTICULARS OF ATTACK CONT'd

Attack No. 4 Cont'd

Torpedo run - 1900
Set depth - 0
Firing interval - -
Time explosion - 1 - 40
Offset - 0
Remarks - One hit aft in machinery spaces. Target was 3 - 400 feet long. Was not loaded. Previous damage was soon forward, where stick mast was blown away and bridge structure damaged apparently by aerial bombs. Then last scan target was down by stern, bow high, and listed over about 20' to port.

Attack No. 5

Date - 3-13-43
Time - 1500
Attack type - Daylight battle surface from submergence.
Target - Schooner - range 500 yards - rel. brg. 315 to 270 - fired 9 rounds - 4 hits - target sank immediately.
- 5' gun.
- Var.
- Var.
- Var.
- 3 knots.
- 500 yards.
- 10 casualties.

Attack No. 6

Date - 3-21-43
Time - 1815
Attack type - Sundown battle surface from submergence.
Target - Small ship, 4 mine installation, 2 mine installation, fired 4 rounds at ship. No hits.
- Ship
- Subm head - 210
- Subm speed - Stop
- Target course - Last
- Target speed - 0

| Time | Ship | Target | Hits |
|------|------||------|
| 1815 | 210  | 210    | 0    |
|      | 210

— page 244 —
7. ATTACKS OF ATTACKS CONT'D.

Attack No. 6. Cont'd.

| Date       | Ship | Time | Range | Torpedo | Torpedo Course | Torpedo Type |

— page 245 —
7. 2nd U.S.S. Torpedo Control

Attack No. 8

Date: 4-9-43.
Time: 0806
Attack type: Daylight submerged torpedo attack.
Target: All
    Tube 1 Tube 2 Tube 3 Tube 4 Tube 5 Tube 6
    Int. 16 Int. 16 Int. 16 Int. 16 Int. 16 Int. 16
    Subs speed 4 4 4 4 4 4 4 4
    Tor. course past 073 073 073 073 073 073 073
    Target speed 9.5 9.5 9.5 9.5 9.5 9.5 9.5
    True brg. approx. 163 162 162 157 157 157 157
    Gyro angle 007 009 020 340 347 242
    Range 90 90 90 90 90 90 90
    Set depth 2450 2450 2450 2900 2700 2700 2700
    Hit's interval 0 0 0 0 0 0 0
    Time explosion -2-50 5-50 6-20 5-20 3-35 9-15
    Offset - - - - - -
    Remarks 1, 2, 3, 5, 6, 7 were fired at 1/2 hour, 4
    was fired at 1/2 hour, 4 hours, 4 hours, 4 hours, 4 hours, 4
    explosions are not correlated with time of
    firing but are merely listed from time first
    torpedo was fired. Refer to narrative for
    estimate of damage. Subsequent observations
    were made in the following possible lists. Turn-
    ber or ships present may be correlated data
    on explosions and run times.

Attack No. 9

Date: 4-9-43.
Time: 1308
Attack type: Daylight submerged torpedo attack.
Target: All
    Tube 7 Tube 8 Tube 9
    Subcourse 172 172 172
    Sub speed 4 4 4
    Tor. course past 262 262 262
    Target speed 4 4 4
    True brg. approx. 352 352 352
    Gyro angle -x -x -x
    Range 36

— page 246 —
7. PARTICULARS OF THINGS CONT'D

Attack No. 9 Cont'd

Range: - Tube 27
Tracks approx. - 300 ft
Torpedo run - 3000
Set depth - 0
Tir's interval - 0
Time explosion - 2 - 10
Offset - x
Remarks - Fire control data insofar later for this attack. DD was hit. It added 20 feet each at high speed. DD was stopped as it was over loaded and turned to bring it to stern to bear. Before turn was completed DD got underway and turned 180° speed 4 knots (Jet.) 1 hit observed. "Mitte smoke was seen aft. DD stopped and was seen down by stern, listed to port, and undoubtedly backside.

6. ENTRY OF TH-2. U.S. SUBMARINE

Noted distinct differences in sound or distortion click and explosion of depth charges dropped by destroyers on 9 April compared to those previously experienced by this vessel. Delivered these charges to be considerably heavier than those dropped by smaller 1/3 vessels. Portunately the above mentioned charges were not close. However, even the detonation click shook the boat.

Possible ship off Mid-Atlantic was described in narrative on 5 March.

Believe enemy may be anchoring, small listening boats off important harbors.

9. H.J. DUTCH, PT-109

(A) Histories 5" gun. Foot pedal firing unreliable. Mechanism may be damaged in heavy seas. Insulation on striker shaft of firing pin assembly is unnecessary and a hazard.

(B) Inattention of watch permitted low water in one year compression distiller necessitating a complete overhaul which was expeditiously and efficiently accomplished by ship's

Page 39

— page 247 —
9. MAJOR DEFECTS - PERMANENT CONT'D

Force. A low water level alarm system was designed by Eng- iner Officer and installed.

(C) A loose gasket on outer door of an after room torpedo tube was removed and a new gasket reinstalled. In this connection it is recommended that a weighted belt be designed and supplied for use - if face mask.

(D) Forward generator bearing of auxiliary engine burnt out due to lack of lubrication. It was discovered that supply line was fouled by a small wooden plug. Journal on shaft was badly scored and grooved. Shaft was stoned and bearing renewed by ship's force.

(E) Power shift on attack periscope became stuck in high power. To attempt was made to clear this defect for fear of losing full use of periscope.

(F) 5T Radar performed excellently until March 16th, when the magnetron tube became grounded and burnt out resistors. The resistors were replaced but spare tubes moved to be faulty. It is believed that T.UTOG series tube was one removed during overhaul period and replaced in series by mistake.

(G) Bad hydraulic oil leak developed on supply line, (closing position), to the starboard safety flood valve. The supply line was disconnected on both the port and starboard safety flood operating cylinder. A continuous flow of air through the line was maintained and the defective port was still-solved. Results were satisfactory.

(H) An annoying rattle inside CD antenna was persisted throughout patrol. It was particularly noticeable submerged at any speed over four knots. Believe inculators for co-axial cable inside must have slipped.

10. RATINGS

Health of crew was excellent. Primipall means of use fully passing time on T.UTOG continues to be qualification of new men. Fifteen leading men are classified instructors in various systems, machinery etc. A student must get a passing mark on his card from each instructor prior to examination by qualification officer. The questions of the students keep the old

Page 40

— page 249 —
6/mrcf
Serial #: 0137
SUBJECT: USS TAUTOG, FlagShip, April 23, 1943
FIRST INSTRUCTIONS:
USS TAUTOG Conf. 1tr.
SS199/416-3 Serial U8
dated 19 April 1943.

From: The Commander Submarine Squadron SEK.
To: The Commander in Chief, U.S. FLT.
Via: The Commander Task Force SUBMARINE OIC.

Subject: U.S.S. TAUTOG's Sixth War Patrol - Comment on.

1. The TAUTOG's sixth war patrol covered a period of fifty days of which forty two were spent north of the Malay Barrier.

2. No derangements of material that seriously affected the military performance of the TAUTOG were experienced during the patrol just completed excepting the misfires of the five inch gun and the nonfunctioning of the 5J radar after 18th of March. In the absence of an electrical firing circuit on the gun, the inculcation on the firing pin (to which the failure may be directly traced) serves no useful purpose and has been replaced with bronze guide rings. As regards the failure of the 5J it is intended out that an adequate supply of spare tubes was not furnished the tender when the equipments were delivered. Recuits and despatches from a tender stock have not as yet been filled. Personnel are to be commenced on successfully replacing the loose gasket on the after tube while in the patrol area; this will be made the subject of a separate letter of recommendation for suit ble reward. The TAUTOG is currently being refitted by PELIAS in preparation for next patrol.

3. The health of the crew was excellent. On return to port the crew were more pale than the average. The Squadron Medical Officer recommends increased use of the sun lamp and greater attention to the use of multiple vitamin capsules by all hands.

4. The patrol was aggressively conducted and it is clear that the Commanding Officer "beat the bushes" in search of targets. It is not clear how many ships were hit in the attack on the convoy on April 9th. It is believed that the explosions at 2 minutes 50 seconds and 5 minutes 10 seconds after firing the first torpedo report a hit on a ship of the near column (probably the second ship on which the brown smoke

— page 250 —
5-6/A16-3
Serial: 0137
SUBMARINE SQUADRON SIX

C-O-N-F-I-D-Z-N-T-I-A-L
FIRST ENTERPRISE TO USE TAUTOG Conf. 1tr.
SS199/A16-3 Serial 08
dated 19 April 1943.

Subject: U.S.S. TAUTOG's sixth "air patrol" - Comment on.

was sunk) and a hit on a sail of the far column. One ship may have been sunk and survivors rescued by the DD which then proceeded to the assistance of the other damaged ship which was eventually beached. The evidence of two ships missing out of a convoy about 1 hour and 35 minutes after firing is hardly sufficient to presume that one sank and the other was later beached. The follow up by torpedoing the DD was excellent.

6. The Commander submarine squadron SE heartily congratulates the Commanding Officer, officers and crew of the TAUTOG on an aggressive and successful patrol. It is considered that the following damage was inflicted on the enemy:

| SINK | Tonnage |
|------||
| 1    | 50 tons |
| DD  | 1700 tons |
| AK | 5000 tons |
| AO | 4000 tons |
| Motor Semper | 30 tons |
| Sailboat | 10 tons |
| TOTAL | 10740 tons |

A. R. McAULIN.