U.S.S. HACKLEBACK (SS-295) — war patrol report SS-295_HACKLEBACK.pdf

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START OF REEL [HANDWRITTEN: #7]
JOB NO. [HANDWRITTEN: F-103]
[HANDWRITTEN: AR 127-78]

| 1.0 | 4.5 | 2.8 | 2.5 |
|-----|-----|-----|-----|
|     | 5.0 | 3.2 | 2.2 |
| 1.1 |     | 3.6 | 2.0 |
|     |     | 4.0 | 1.8 |
| 1.25| 1.4 | 1.6 |     |

OPERATOR [HANDWRITTEN: DEBOSS]

DATE [HANDWRITTEN: 7/19/78]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[IMAGE: Department of Defense Seal]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

REEL TARGET - START AND END
NDW-NPPSO-5210/1 (6-78)

— page 2 —
[HANDWRITTEN: HACKLE BACK (SS-295)
WWII PATROL FILE
ALL MATERIAL ON THIS REEL IS DECLASSIFIED
FOR DECK LOG NOVEMBER 1944 - JUNE 1945 CONSULT
NATIONAL ARCHIVES WHICH HAS CUSTODY.

J.A. KOONZ]

— page 3 —
Division of Naval History
Ships' Histories Section
Navy Department

HISTORY OF USS HACKLEBACK (SS 295)

Though USS HACKLEBACK was commissioned late in the war, she
nevertheless fulfilled a unique mission. It was this alert sub-
marine that notified Task Force 58 of the Japanese Task Force led
by the world's largest battleship, YAMATO, approaching the Allied
landings on Okinawa.

USS HACKLEBACK was built by the Cramp Shipbuilding Company
at Philadelphia, Pennsylvania. Her keel was laid on 15 August
1942, and she was launched on 30 May 1943. Mrs. W. L. Wright, wife
of Lieutenant Commander William L. Wright, USN, of Submarine
Squadron 6, served as sponsor. On 7 November 1944, USS HACKLEBACK
was commissioned under the command of Lieutenant Commander Frederick
E. Janney, USN.

Loading tests and underway training took up the period until
18 December 1944. At that time she sailed for Key West, Florida
for a training period after which she sailed for the Canal Zone on
8 January 1945. On 25 January she sailed on for Pearl Harbor
and arrived there on 10 February.

USS HACKLEBACK departed for her first war patrol on 6 March
1945. The patrol was conducted in the Bungo Suido Area and lasted
51 days. Arriving in her area, the submarine made contact with a
large Japanese task force on the night of 6-7 April. The task
force included the huge battleship YAMATO and HACKLEBACK's captain
was determined not to let that ship get by. Contact was immediately
made with Task Force 58, which was also in the area, and by 1000
on the 7th, YAMATO had made radar contact on a large group of
carrier planes. The planes remained on their radar scopes until
about noon. At that time they dropped down from a cloud in a dive
bombing attack followed by torpedo planes. Another attack of
carrier planes swarmed in later, scoring numerous hits and about
1400, the battleship YAMATO rolled over and sank. Only about 280
of her 2400 personnel were saved, among those the Japanese Chief
of Staff. Thus, HACKLEBACK had helped put the Japanese dreams
of world conquest and the YAMATO to the bottom of the ocean to-
gether.

Though no torpedoes were fired on her first patrol, the Sub-
marine Combat Insignia was awarded and her commanding officer was
awarded the Bronze Star Medal for reporting and shadowing of the
Japanese Task Force. The submarine arrived at Midway for a refit
on 27 April 1945.

— page 4 —
-2- USS HACKLEBACK (SS 295)

On HACKLEBACK's second and last war patrol, beginning on 21
May, she rescued a Navy fighter pilot on 22 June after his plane
had been damaged in strikes south of Saki Shima Gunto. On 7 July
the submarine bombarded Shokoto Sho with 73 rounds of 5-inch
shells. That done, she returned to Guam on 12 July for a refit.
Though she departed for her third war patrol on 14 August, the
war came to an end before she arrived on station and she returned
to Midway Island on 22 August 1945. On 1 September the submarine
headed for San Francisco, California where she was placed in the
reserve fleet.

USS HACKLEBACK earned one Battle Star on the Asiatic-Pacific
Area Service Medal for participating in the assault and occupation
of Okinawa Gunto from 24 March to 30 June 1945.

STATISTICS

LENGTH OVERALL                                312 feet
BEAM                                          27 feet
SPEED                                         20 knots
DISPLACEMENT                                  1443 tons

* * * * *

Compiled: April 1953

— page 5 —
[HANDWRITTEN: 1ST COPY]

SS295/A16
Serial (021)

U.S.S. HACKLEBACK (SS295)
Care of Fleet Post Office,
San Francisco, California.
26 April 1945.

[STAMP: DECLASSIFIED A-1]
From: The Commanding Officer.
To: The Commander in Chief, United States Fleet.
Via: (1) Commander Submarine Division TWO HUNDRED TWENTY ONE.
     (2) Commander Submarine Squadron TWENTY FOUR.
     (3) Commander Submarine Force, Pacific Fleet.

Subject: U.S.S. HACKLEBACK - Report of War Patrol Number ONE.

Enclosures: (A) Subject Report.
            (B) Track Chart.

1.
Enclosure (A) covering the first war patrol of
this vessel conducted in SULU SEA area during the period 6
March 1945 to 26 April 1945, is forwarded herewith.

[SIGNATURE: C. W. Willey]
C. W. WILLEY.

[STAMP: DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C]
BY [HANDWRITTEN: OP-09B9C] DATE [HANDWRITTEN: 5/30/72]

[STAMP: DECLASSIFIED]

[HANDWRITTEN: 121602]

— page 6 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

(A). PROLOGUE:

The U.S.S. HACKLEBACK, built by Cramp Shipbuilding Company,
was commissioned at Navy Yard, Philadelphia, Pennsylvania, 7
November 1944. A thirty day shakedown and training period was con-
ducted in the New London area. Departed New London, Connecticut,
18 December 1944 and arrived Key West, Florida, 24 December 1944
for two weeks operations with the Atlantic Fleet Sonar School.
Departed Key West, Florida 8 January 1945, and arrived Balboa, C.Z.
12 January 1945. Seven days training were conducted in the Panama
area, the HACKLEBACK being held over to await the departure of the
U.S.S. TIRANTE. Departed Balboa, C.Z., 25 January 1945 in company
with the U.S.S. TIRANTE and arrived Pearl Harbor, T.H., 10 February
1945. Voyage repairs, undertaken by Submarine Base, Pearl Harbor,
consisted of installing a 40MM gun, radar detecting equipment,
VHF and Loran radio equipment, drydocking and pumping the battery
three times in an attempt to reduce the high chloride content.
The ST radar was not installed. Conducted ten days underway train-
ing and fired eight Mk XIV torpedoes in low power. Readiness for
sea date, 6 March 1945.

Transfers: Lieutenant John D. Vaden, (DE), USNR, was de-
tached and Lieutenant Walter B. Griffith, (DE), USNR, and Lieutenant
Jack W. Smalling, (DE), USNR, reported aboard for duty.

(B) NARRATIVE:

OFFICERS | RANK | NO OF WAR PATROLS
F. E. JANNEY | Lt.Comdr., USN | 11
H. J. CROSTHWAITE | Lieut., USNR | 9
W. B. GRIFFITH | Lieut., USNR | 2
J. R. SWANBECK | Lieut., USN | 6
J. W. SMALLING | Lieut., USNR | 2
J. W. GILBERT | Lt(jg), USNR | 1
R. B. BROWN | Lt(jg), USN | 6
J. E. MC CAULEY | Lt(jg), USN | 1
R. P. SMITH | Ensign, USNR | 1
D. H. PAUL | Ensign, USN | 1

CHIEF PETTY OFFICERS | RATE | No. OF WAR PATROLS
G. H. MASON | CTM | 9
C. W. TANNER | CPhM | 9
N. H. SETTLE | CSM | 11
Frank LUDWIG | CMOMM(T) | 5
S. J. MESSINA | CMOMM | 10
Stephen ARTYMOWICZ | CEM(T) | 3

-1-

— page 7 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

6 March 1945

1330(VW) Underway for Midway, in accordance with ComSubspac
          Operation Order No. 52-45.
1620(VW) Made trim dive.
1653(VW) Surfaced.
1746(VW) Escort departed.

7 March 1945

1200(VW) Position: 24°-33'N, 161°-10'W.

8 March 1945

0951(W) Made trim dive to test depth.
1045(W) Surfaced.
1200(W) Position: 26°-23'N, 167°-44'W.
1400(W) Made training dive.
1413(W) Surfaced.
1634(W) Made training dive.
1714(W) Surfaced.

9 March 1945

1050(X) Made trim dive.
1110(X) Surfaced.
1200(X) Position: 28°-31'N, 172°-51'W.
1448(X) Made training dive.
1554(X) Made practice battle surface. Fired all guns.

10 March 1945

0903(X) Arrived Midway. Affected minor voyage repairs. Trans-
          ferred two men and received three men. Ensign David
          Hume PAUL, USN, reported aboard for duty.
1600(Y) Underway for patrol.
2400(Y) Crossed 180th Meridian.

-2-

— page 8 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol
12 March 1945
0758(M) Made trim dive.
0845(M) Surfaced.
1200(M) Position: 29°-09'N, 177°-49E.
2040(M) Air contact on 104 mcs. Commenced swinging ship to ob-
         tain a bearing on APR. Results negative. Believed to
         be a freak signal from Midway based radar. Signal was
         very weak and faded out after a half hour.

13 March 1945
0845(M) Made trim dive.
1035(M) Surfaced.
1200(M) Position: 30°-14'N, 172°-35'E.

14 March 1945
0545(M) Sighted what looked like a large helium balloon bearing
         120°T, distance approximately ten miles, altitude
         approximately 2500 feet. Unable to pick it up on the
         radar.
0605(M) Changed course and put four main engines on propulsion
         to close it with the possibility in mind that it might
         be a balloon strung by some downed aviator.
0704(M) The range had not closed appreciably if at all. Decided
         it was a weather balloon.
1200(M) Position: 30°-35'N, 168°-05'E.
2228(M) Received orders from ComSubsPac not to proceed west of
         142°E. until further notice.

15 March 1945
0627(M) Made trim dive.
0756(M) Surfaced.
0805(M) Sighted floating mine. Position: Lat. 31°-03'N, Long.
         164°-04'.E. Sank mine with 20MM gunfire.
1025(M) Sighted mine Lat. 31°-09.7'N, Long. 163°-35'E.
1030(M) Mine exploded 200 yards on the starboard beam from 20MM
         gunfire. Fragments spread over the water for a radius of a
         hundred yards.
-3-

— page 9 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol.

1200(M) Position: Lat. 31°-11'N, Long. 163°-15'E.

16 March 1945
1200(L) Position: Lat. 31°-23'N, Long. 157°-48'E.
1605(L) Made trim dive.
1635(L) Surfaced.

17 March 1945
1200(L) Position: Lat. 31°-20'N, Long. 153°-01'E.
1535(L) Made trim dive.
1555(L) Surfaced.

18 March 1945
Encountered strong head winds and heavy seas. Speed of
advance, 9 knots.
1200(L) Position: Lat. 31°-21'N, Long. 146°-48'E.

19 March 1945
0615(L) Made trim dive.
0658(L) Surfaced.
1200(L) Position: Lat. 31°-02'N, Long. 143°-02'E.
1237(L) Sighted two picket boats through the high periscope,
bearing 225°T, range about seven miles, sharp angles on
the bow (S/C #1). Submerged and closed picket boats for
observation. Close range revealed that each boat carried
five guns varying from a three inch to 40 MM and machine
guns. They were lying to and several lookouts could be
seen. While it would have been an easy matter to fire
torpedoes it was considered a needless waste and the
possibilities of hitting were very remote. The estimated
draft of each was about two or three feet at most. De-
cided to make a dusk battle surface so opened range to
the South to surface.
1850(L) Made battle surface and much to our surprise targets
were nowhere in sight. Apparently while we opened range,
targets had got way on and headed West. Commenced search.

-4-

— page 11 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

0828(L) Sighted picket boats maneuvering radically at slow speed
0840(L) Heard two more explosions. rickets were apparently dropp-
          ing depth charges in an effort to keep us away, although
          I do not believe that they were equipped with sound gear.
          Closed to 2500 yards but no damage could be detected.
          Opened range and decided to remain submerged to exercise
          bow and stern planesmen.
1200(L) Position: Lat. 30°-55'N, Long. 142°-57'E.
1805(L) Surfaced. Patrolling West of 142°-30'E.
1915(L) Repaired and test fired 40MM. Fired ten rounds.
2030(L) Sent serial #1 to ComSubSrac.
2130(L) Converted 4A and 4B fuel ballast tanks to main ballast
          tanks.
2238(L) Submerged to wash out No. 4A and 4B main ballast tanks.
2305(L) Surfaced.

                                21 March 1945
0426(L) Received orders from ComSubSrac to proceed to Bungo Suido,
          SILVERIDES to coordinate our patrol with his. Headed
          for Bungo Suido at three engine speed.
1030(L) Sent serial #2 to give ComSubSrac ETA Bungo Suido and
          ask for missing serial.
1035(L) Sighted mine, Lat. 30°-53'N, Long. 141°-46'E.
1042(L) Exploded mine with 20MM gunfire. This mine was the same
          type as the two previous mines sunk.
1057(L) SD radar contact, aircraft contact #1, 10 miles.
          Visibility excellent, sea calm. No contact on the AIR.
          Dived. We were keying SD 5 seconds out of every 30
          seconds.
1200(L) Position: Lat. 31°-11'N, Long. 163°-22'E.
1224(L) Surfaced.
1333(L) O.O.D. sighted a BETTY, aircraft contact #2, estimated
          range 15 miles, no AIR or SD radar contact. Dived. Had
          been keying the SD radar when the sky was 5/10 or more
          covered.

                                -6-

— page 12 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1546(L) Surfaced and discontinued use of SD Radar.

1646(L) High periscope sighted TOHI SHIMA bearing 226°T, range
          40 miles.

1824(I) First of a series of SJ radar contacts ranging from 1800
          yards to 3000 yards, the SJ operator calling them either
          periscopes or mines. After the second SJ contact, de-
          cided the radar was picking up small swells as the sea was
          practically calm with a long swell and the contacts were
          always in the direction of the swell.

2035(I) Received message from Comsubspac informing us that our
          routine was satisfactory and that the serial missed was
          not required.

2125(I) APR contact on 98 mcs. radar with 600 P.R.F. Believed
          to be land based.

22 March 1945

1200(I) Position: Lat. 31°-30'N, Long. 135°-20'E.

1915(I) APR contact, 150 mcs, land based radar.

1933(I) Made trim dive.

1943(I) Surfaced.

1945(I) 153 mcs. radar on the APR.

2012(I) Received message from ComSubspac telling us to submit
          weather reports on alternate days with the SILVERSIDES.

2050(I) Sent message to SILVERSIDES on area frequency giving
          our position and requesting instructions.

2235(I) Received instructions from SILVERSIDES to patrol to the
          Eastward of a line running from Lat. 31°N, Long. 133°E
          to Lat. 32°N, Long. 132°-15'E, thence North into Bungo
          Suido. SILVERSIDES patrolling to the Westward of this
          line.

2330(I) APR contact, 98 mcs radar, land based, sweeping and
          reaching saturation every three minutes. It would stay
          at saturation for about a minute.

2350(I) Noted radar interference similiar to our own SJ inter-
          ference in the direction of the SILVERSIDES' probable
          position.

-7-

— page 13 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

23 March 1945

0035(I) Picked up SHIKOKU on the radar, bearing 042°T, range
         118,200 yards.
0100(I) Entered assigned area.
0502(I) Submerged on course 320°T. with OKINO SHIMA Island bear-
         ing 335°T, distance 25 miles.
1200(I) Position: Lat. 32°-36'N, Long. 132°-39'E.
1337(I) JP Sound contact 320°T. Went to Battle Stations.
1351(I) Secured from battle stations when sound contact proved to
         be fish noises.
1400(I) Changed course to 200°T to open the beach. Very hazy
         over the beach. Unable to get a fix all day.
1930(I) Surfaced. Two land based radar, 96 and 150 mcs on the
         AIR.
2315(I) SILVERSIDES radar interference on the SJ radar bearing
         259°T.
2345(I) SJ radar contact bearing 051°T, closing fast. Dived
         when the range closed to 6,000 yards. Planes contact #3.

24 March 1945

0055(I) Surfaced.
0506(I) Submerged with OKINO SHIMA bearing 020°T, distance 17.5
         miles, to patrol west of OKINO SHIMA.
1200(I) Position: Lat. 32°-38'N, Long. 132°-18'E.
1943(I) Surfaced. Three land based radars, 96, 151, and 158 mcs
         on the AIR. The 158 mcs radar could have been aircraft
         radar as it was very weak and kept fading out.
1958(I) Sent serial #3 to ComSubSracAdCom.

25 March 1945

0529(I) Submerged, set course to close OKINO SHIMA.
1200(I) Position: Lat. 32°-25'N, Long. 132°-29'E.

-8-

— page 14 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1405(I) Sighted "BETTY", range approximately 6 miles. Plane.
         contact #4.

1945(I) Planed up to 42 feet. Very strong aircraft radar on the
         APR. Went to 60 feet. Aircraft contact #5.

2009(I) Surfaced. All clear on the APR with the exception of
         the usual land based radar.

26 March 1945

0529(I) Submerged.

1200(I) Position: Lat. 32°-38'N, Long. 132°-23'E.

1959 Surfaced, usual land based radar on APR.

2017 Sent weather report, serial #4.

27 March 1945 ::
0530(I) Submerged.

1200(I) Position: Lat. 32°-38'N, Long. 132°-22'E.

1532(I) Sighted six "FRANCIS", aircraft contact #6.

1548(I) Sighted a "JAKE", aircraft contact #7.

1750(I) Sighted a "JAKE", aircraft contact #8.

1943(I) Surfaced, usual land based radar signals on the APR.

2155(I) SJ radar contact, aircraft contact #9. Submerged when
         C.O.D. heard the planes engines directly overhead. When
         questioned later, all personnel on the bridge said they
         heard the plane. It was a bright moonlight night with
         low cumulus clouds.

2210(I) At 42 feet depth. Strong 154 mcs aircraft radar signal
         on the APR. Went to 60 feet. Aircraft contact #10.

28 March 1945

0007(I) Sighted plane through periscope, aircraft contact #11.
         Went to 90 feet.

0030(I) At 42 feet, strong aircraft radar on the APR. Went to
         50 feet. Aircraft contact #12.
         ::
         ::

-9-

— page 15 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War patrol.

0054(I) Surfaced, all clear on the APR with the exception of the
         usual land based radar.

0518(I) Submerged.

1200(I) Position: Lat: 32°-36'N, Long. 132°-15'E.

1251(I) Sighted six single engine float type planes. Aircraft
         contact #13.

1321(I) Sighted six planes, same type as last six sighted.
         Believe they were the same planes.

1339(I) Sighted a "ZEKE", aircraft contact #14.

1415(I) QB sound contact, echo ranging on 17 Kc, bearing 138°T,
         very faint. Turned toward. Went to 58 feet, nothing
         in sight.

1439(I) Screws and echo ranging faded out.

1619     Sighted masts of two ships bearing 132°T, echo ranging on
         17 Kcs. Went to battle stations. Closer range revealed
         that they were two small patrol craft, probably PC boats.
         One was echo ranging on 17 Kcs. using a single ping and
         the other was echo ranging on about 16.5 Kcs. using a
         series of pings of one, two and three with automatic
         control.

1640(I) Heard distant explosions.

1642(I) Sighted low flying single engine float type plane circ-
         ling the patrol boats, aircraft contact #15.

1648(I) Discontinued the approach as it was considered very im-
         probable that a successful torpedo attack could be made
         on a PC boat.

1650(I) Went to 90 feet to remain undetected by the plane.
         Screws getting louder.

1700(I) Went deep and rigged for depth charge. As we passed 200
         feet a loud rattle from topside could be heard in the
         Conning Tower and on all the sound gear. Tried to de-
         crease the rattle by running at very slow speed with no
         success. Sounded like the rattle was being caused by
         the port antenna.

1725(I) Heard several distant explosions.

-10-

— page 16 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1726(I) Heard six depth charges, much closer but still at least
         four or five miles away.

1741(I) Twenty five more depth charges over a period of fifteen
         minutes - none close.

1748(I) Several very distant underwater explosions. Patrol craft
         now pinging on short scale - too far away to be on us.

1753(I) One more very distant explosion.

1805(I) Another explosion much closer. Must have several teams
         making a sweep dropping depth charges at random or else
         the SILVERSIDES is being worked over.

1815(I) One distant depth charge. Echo ranging still on short
         scale, estimated range at least 8,000 yards.

1915(I) Lost sound contact.

1958(I) At 40 feet - all clear.

2006(I) Surfaced. All clear on the radar. Usual land based
         radar on the APR.

2120(I) Cleared HACKLEBACK serial #5, weather report and
         reported sudden increase in A/S measures.

2329(I) Sighted gunfire on the horizon bearing 280°T.

2333(I) Set course in the direction of the gunfire. Gunfire
         ceased.

         29 March 1945

0346(I) Sighted small craft, bearing 310°T, range approximately
         8,000 yards. SJ radar unable to pick it up. Decided
         it was a small patrol craft. It was a bright moonlit
         night with excellent visibility. Put our stern to him
         and opened out.

0402(I) Set course to close the beach for submerged patrol of
         BURGO SUIDO.

0432(I) Air aircraft radar contact #16. Switched on SD radar
         for one second, range 4 miles. Dived.

0450(I) Surfaced.

0452(I) SJ radar contact bearing 080°T, range 28,000 yards.
         Air craft contact #17.

         -11-

— page 17 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of War Patrol No. ONE.

0535(I) Submerged.
1200(I) Position: Lat. 32°-19'N, Long. 132°-22'E.
1932(I) Surfaced. Same land based radar on the APR as on previous
           nights.
2150(I) APR aircraft radar contact. Flashed SD radar on for one
           second, range 18 miles. Aircraft contact #18.
2300(I) Aircraft radar contact on the APR. SD radar range 20
           miles. Aircraft contact #19. Our policy on strong APR
           aircraft contacts is to turn on the SD radar for a split
           second if it looks like the range is closing. With the
           number of radar contacts in this area our APR operators
           are becoming quite good in distinguishing between land
           based radar and aircraft radar. At times there are as
           many as eight different frequencies showing on the APR.
2345(I) Weak 152 mcs. aircraft radar signal on APR. Aircraft
           contact #20.
2349(I) Sighted floating mine. Position. Lat. 32°-13'N, Long.
           132°-31'E. With the amount of aircraft activity in this
           area, decided not to try to sink it.

30 March 1945

0017(I) Strong 200 mcs. aircraft radar contact on APR. Dived to
           42 feet. Aircraft contact #21.
0022(I) Heard distant explosions. Went to 60 feet.
0106(I) At 42 feet. SJ radar aircraft contact bearing 181°T,
           range 21,000 yards. Aircraft contact #22.
0220(I) SJ radar aircraft contact #23, range 1300 yards, sighted
           plane through periscope, also had 200 mcs radar signal
           on APR. Went to 90 feet. Aircraft contact #24.
0255(I) Patrolling at 42 feet.
0315(I) SJ radar aircraft contact, range 23,000 yards. Aircraft
           radar signal on APR, very peculiar radar signal. Could
           be Jap IFF (See Radar Section). Aircraft contact #25.
0400(I) SJ radar aircraft contact, range 25,000 yards. Aircraft
           contact # 26.
0415(I) Surfaced. SJ radar aircraft contact, range 20,000 yards.
           Aircraft contact #27.

-12-

— page 18 —
CONFIDENTI L
U.S.S. HICKIEBACK - Report of First War Patrol

0539(I) Submerged.
1200(I) Position: Lat. 32°-28'N, Long. 132°-30'E.
1221(I) Two very distant explosions.
1916(I) Surfaced. Usual land based radar on the APR.
1957(I) APR aircraft contact. Did not close. Aircraft contact #28.
2016(I) Cleared serial #6 to ComSubspacAdCom.
2354(I) SJ radar aircraft contact, range 11,000 yards. Aircraft contact #29. Dived.

31 March 1945

0117(I) Patrolling at 42 feet. APR aircraft radar contact, SD range 3 miles. Went to 60 feet. Aircraft contact #30.
0137(I) Four aircraft contacts on SD radar ranging from 4 to 8 miles. Aircraft contact #31.
0158(I) SJ radar aircraft contact, range 20,000 yards. Aircraft contact #32.
0212(I) SD radar contact 2½ miles. Aircraft contact #33.
0238(I) SJ radar aircraft contact, range 8,000 yards. Aircraft contact #34.
NOTE: We are gradually becoming used to these contacts and are staying up on the surface.
0450(I) Sighted floating mine on the port beam. Position: Lat. 32°-18'N, Long. 132°-34.5'E. Mine was of the same type sighted on previous occassions.
0510(I) Sighted second floating mine. Position: Lat. 32°-15'N, Long. 132°-30.5'E. Due to the air activity in this area, did not try to sink them, tracer ammunition would surely give us away to aircraft.
0521(I) Dived for submerged patrol off BUNGO SUIDO.
1200(I) Position: Lat. 32°-33'N, Long. 132°-22'E.
1937(I) Surfaced. At least six land based radars on the AR.

-13-

— page 19 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol.

1945(I) Received message from ComSubSPac forming Task Group 24,
(Nicks Nippers), comprised of SILVERSIDES, THREADFIN, and
HACKLEBACK with Commanding Officer of the SILVERSIDES
as group commander.

2319(I) Received message from Group Commander sub-dividing the
area into three sectors. HACKLEBACK'S present patrol
sector not affected by this message.

1 April 1945

0525(I) Submerged.
1200(I) Position: Lat. 32°-35'N, Long. 132°-23'E.
1940(I) Surfaced.
2010(I) APR aircraft radar contact - weak. Aircraft contact #35.
2012(I) Sent serial #7.
2030(I) APR aircraft radar contact - weak. Aircraft contact #36.

2 April 1945

0524(I) Submerged.
0719(I) Heard a distant explosion.
1200(I) Position: Lat. 32°-34'N, Long. 132°-37'E.
1937(I) Surfaced.
2115(I) APR aircraft radar contact - opening. Aircraft contact
#37.

3 APRIL 1945

0004(I) SJ radar aircraft contact, range 40,000 yards. Aircraft
contact #38.
0022(I) SJ radar aircraft contact, range 5,500 yards. Aircraft
contact #39.
0125(I) Strong APR aircraft radar contact, SD radar range six
miles, closing. Dived. Aircraft contact #40.
0135(I) At 42 feet. Strong APR aircraft radar, 159 mcs, regular
keying.

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— page 20 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

0220(I) Strong A/R aircraft radar contact, 159 mcs, regular
         keying. Possible Jap IFF. Aircraft contact #41.

0245(I) Surfaced.

0430(I) Weak aircraft radar signal on the A/R. Aircraft contact
         #42.

0522(I) Submerged.

1200(I) Position: Lat. 32°-40'N, Long. 132°-25'E.

1258(I) Sighted ship hull down, bearing 030°T. Commenced
         approach. Close range revealed target to be three
         small fishing boats inside 100 fathom curve. Dis-
         continued the approach. Range to the beach eight miles,
         considered a battle surface impracticable.

1930(I) Surfaced.

1943(I) Sent serial #8.

1945(I) A/R aircraft radar contact - opening. Aircraft contact
         #43.

2237(I) SJ radar aircraft contact, range 6,000 yards, closing.
         Dived. Aircraft contact #44.

2318(I) Surfaced.

4 April 1945

0516(I) Submerged.

1200(I) Position: Lat. 32°-42'N, Long. 132°-21'E.

1942(I) Surfaced.

5 April 1945

0525(I) Submerged.

1200(I) Position: Lat. 32°-28'N, Long. 132°-22'E.

1945(I) Surfaced.

1950(I) 96 mcs. radar with a double pip on the A/R. Possibly
         some form of Jap IFF. Aircraft contact #45.

2030(I) Sent serial #9.

2125(I) 256 mcs. radar with a 1000 plus PRF on the A/R.

-15-

— page 21 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol
6 APRIL 1945

0520(I) Submerged.
1200(I) Position: Lat. 32°-38'N, Long. 132°-22'E.
1500(I) Sighted three "RUFUS", aircraft contact #46, seem to
           be circling.
1720(I) Sighted a small patrol craft, bearing 035°T, range
           approximately 7,000 yards. Looked like a landing craft.
           Sound was unable to pick him up at 3,000 yards, decided
           he was too shallow draft for a torpedo. Resembled an LCI.
1725(I) Heard one very distant underwater explosion.
1745(I) Heard numerous distant underwater explosions.
1758(I) Heard at least six or more distant underwater explosions.
1800(I) JK Sound picked up screws bearing 135°T, second patrol
           boat. When first sighted the angle on the bow was 45 port.
1815(I) Second patrol craft turned away, but the range did not
           open. Sound lost contact about the same time. Decided
           he was lying to, listening.
1824(I) Sighted third patrol craft bearing 149°T, range 4,500
           yards. All three were the same type. Three patrol craft
           in sight now. Sound had contact only once and for a very
           short period of time. Decided they were all listening as
           no echo ranging could be heard on the sound gear. One
           or two very distant underwater explosions could be heard
           about every twenty minutes too far away to be depth
           charges from the three patrol craft in sight. Set course
           210°T to work around patrols to the Southward. With all
           the anti-submarine activity present today, wanted to be
           in position to surface as early as possible in case some-
           thing was coming out of BUNGO SUIDO tonight.
1947(I) Surfaced. Radar range to the patrol crafts, 10,000 to
           14,000 yards. Decided to patrol along the Western edge
           of the area. Thought that if they were sending anything
           out of BUNGO SUIDO it would be more than likely it would
           be sent South and probably routed along the coast of
           KYUSHU or down the middle of BUNGO SUIDO.
2000(I) AIR contact, 148 mcs, 1050 PRF aircraft radar. SD radar
           range 8 miles. Plane was keying his radar at irregular
           intervals. Aircraft contact #47.

-16-

— page 22 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

2015(I) SJ radar aircraft contact bearing 265°T, range 18,000
          yards.

2028(I) SJ radar contact bearing 300°T, range 30,000 yards. At
          first the pip came in very weak and disappeared and it
          was thought that it might be an aircraft. Went to full
          speed on three engines, heading to the Southwest. Pip
          came in stronger on approximately the same bearing
          closing slowly and it was obviously a large warship and
          not a plane. Sent radar contact report to ComSubsrac,
          manned tracking party and went to flank speed on four
          engines. Contact closed very rapidly and soon developed
          into six contacts, one considerably larger than the
          others, between twenty and twenty five thousand yards
          and a seventh pip appeared at fourteen thousand yards.
          While sweeping, several aircraft contacts appeared at
          various ranges and bearings. One plane circled us at
          four miles and three others remained within ten miles
          of us. Plot tracked the main body of the assumed task
          force and the TDC was set up on the closest pip which
          appeared to be an outside destroyer screen. Sent second
          report to ComSubsrac giving seven radar contacts on
          course 180°T, speed 20 knots. When range to near des-
          troyer had closed to 13,000 yards the O.O.D. and
          lookout sighted signaling by blinker in the direction of
          the contacts. Immediately the destroyer commenced clos-
          ing us at high speed. We put our stern to him thus
          losing bearing on the task force, but when the range
          closed to 10,000 yards the destroyer turned off and
          opened to 13,500 yards. As soon as he turned back we
          turned and commenced to parallel the task force on course
          180°T, speed 22 knots. Range to 13,000 yards. Sent
          third contact report to ComSubsrac giving this data.
          Range to destroyer dropped to 13,000 yards and again the
          bridge reported signaling. The destroyer commenced
          chasing us and we were forced to turn tail losing bear-
          ing once more. When the range closed to 10,000 yards
          the destroyer turned back and opened out so we turned
          back to parallel them. This same performance was re-
          peated a third time, signaling sighted, but this time
          apparently he meant business because he tracked us
          closing from 13,000 yards to 9,000 yards in a few
          minutes. I was expecting to see a radar controlled
          broadside fired and was getting ready to dive when
          suddenly he turned off again and closed the task force,
          then at about 20,000 yards, and his pip disappeared en-
          tirely at 10,000 yards.

2155(I) Task force changed base course to the South Southwest
          thus putting their sterns to us and at

2207(I) Lost contact.

-17-

— page 23 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol -

2300(I) Finally cleared fourth report to ComSubSPac on a circuit
jammed with OU's, giving course 205°T (doubtful), speed
22 knots, and time of losing contact. The aircraft con-
tact code was used entirely and no amplifying report in
ECM was sent because the THREADFIN'S reports in ECM
cipher confirmed all our "dope" and we had nothing to
add. After the first contact report was sent we shifted
to the area frequency to notify the rest of the pack and
the transmitter broke down. Life was at its lowest ebb!
There was one chance in a hundred that the task force
would turn towards us to enable us to attack and now
with the transmitter out of commission all seemed lost.
We were relieved however when our report came back on
the fox schedule within ten minutes of our transmission
as did subsequent reports so transmission on the area
frequency was obviated. In twenty minutes the trans-
mitter was back in commission. Though it was a very
black night, I do not understand why the planes did not
force us down. At flank speed on four engines our bow
wave at times went over the bridge. The SD radar showed
at least one plane within six miles of us the entire
time we were tracking. On other nights they seemed to
have no trouble whatsoever in spotting us within a mile.

2319(I) SJ radar aircraft contact, bearing 227°T, range 40,000
yards. Aircraft contact #51.

2325(I) APR aircraft radar contact, SD radar range 7 miles.
Aircraft contact # 52.

2337(I) Unable to regain contact, set course back to assigned
area.

2358 SJ radar aircraft contact, range 20,000 yards. Aircraft
contact #53.

7 APRIL 1945

0005(I) Sighted a searchlight loom bearing 007°T. Probably
on SHIKOKU.

0007(I) SJ radar aircraft contact, range 28,000 yards. Aircraft
contact #54.

0505(I) Submerged for patrol off BUNGO SUIDO.

1200(I) Position: Lat. 32°-27'N, Long. 132°-32'E.

1939(I) Surfaced. Same land based radar on APR as on previous
nights.

2018(I) Sent HACKLEBACK serial #10 - weather report.

-18-

— page 24 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

8 April 1945
0034(I) SJ radar aircraft contact, range 27,000 yards. Aircraft
         contact #55.
0515(I) Submerged.
1200(I) Position: Lat. 32°-18'N; Long. 132°-33'E.
1937(I) Surfaced.
2000(I) News broadcast said the "YAMATO" (our task force) had
         been sunk.
2258(I) SJ radar aircraft contact, range 20,000 yards. Aircraft
         contact #56.
2300(I) Aircraft radar contact on the APR, SD radar range 10
         miles. Aircraft contact #57.

9 April 1945
0032(I) Received message from Group Commander rotating the areas
         clockwise every four days commencing zero hours on the
         tenth.
0320(I) SJ radar aircraft contact, range 2,850 yards, closing.
         Dived. Range was 1300 yards just before the SJ radar
         went under. Aircraft contact #58.
0343(I) At 42 feet. Strong aircraft radar signal on the APR.
0358(I) Surfaced. All clear with the exception of the usual
         land based radar.
0532(I) Submerged.
1200(I) Position: Lat. 32°-23'-30"N, Long. 132°-33'-00"E.
1936(I) Surfaced. Same land based radar as on previous nights.
2029(I) Cleared serial #11.

10 April 1945
0015(I) Entered patrol area off the Southeast coast of KYUSHU.
0520(I) Submerged for patrol off the Southeast coast of KYUSHU.
1200(I) Position: Lat. 31°-33'-30"N, Long. 131°-55'-00"E.
         -19-

— page 25 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1935(I) Surfaced.
1951(I) SJ radar out of commission.
1953(I) Submerged to work on radar.
2100(I) SJ radar back in commission. Surfaced.

11 April 1945
0510(I) Submerged for patrol off TOI MISAKI.
1200(I) Position: Lat. 31°-25'N, Long. 131°-42'E.
1945(I) Surfaced.
2025(I) Sent serial #12.
2030(I) Aircraft radar contact on the APR. Aircraft contact #59.
2100(I) Weak aircraft radar contact on the APR. Aircraft
          contact #60.
2102(I) SJ radar aircraft contact, range 10,000 yards.
2106(I) Sighted searchlight beam on KYUSHU bearing 345°T. It
          was directed straight up. Probably used to home their
          planes. This light was turned off and on at irregular
          intervals.
2110(I) Three aircraft radars on the APR, closest plane 8 miles -
          SJ radar range. Aircraft contact #61.
2114(I) SJ radar aircraft contact, range 15,000 yards. Aircraft
          contact #62.
2129(I) SJ radar aircraft contact, 18,000 yards. Aircraft con-
          tact #63.
2130(I) One plane closed to 6 miles and then opened out again.
2140(I) SJ radar aircraft contact, range 9,500 yards. Aircraft
          contact #64.
2153(I) SJ radar aircraft contacts, ranges 11,000 and 14,000 yards.
2227(I) Received message from SILVERSIDES requesting our position.
2231(I) Sent our position to the SILVERSIDES.

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— page 26 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

12 April 1945

0007(I) Received SILVERSIDES amplifying report.

0015(I) Being slightly confused, sent message to SILVERSIDES requesting information on contact.

0051(I) Received message from SILVERSIDES saying she had com- pleted an attack, sinking one of two ships, losing con- tact on the second to the North. We are out in the cold again!

0120(I) SJ radar aircraft contact, range 13,000 yards, satura- tion pip on the APR. Aircraft contact #65.

0307(I) Aircraft radar contact on the APR - opening. Aircraft contact #66.

0505(I) Submerged for patrol off TOI MISAKI.

1200(I) Position: Lat. 31°-22'N, Long. 131°-29'E.

1945(I) At 42 feet. Four aircraft radar signals on the APR. Aircraft contact #67.

1951(I) Surfaced.

2205(I) Aircraft radar contact on the APR. Aircraft contact #68.

2212(I) Two aircraft radar signals on the APR. Aircraft contact #69.

2340(I) Two aircraft radar signals on the APR. Aircraft contact #70.

13 April 1945

0045(I) SJ radar aircraft contact, range 11,700 yards. Aircraft contact #71.

0510(I) Submerged for patrol along the 100 fathom curve between TOI MISAKI and TOSAKI HANA.

1200(I) Position: Lat. 31°-29'N, Long. 131°-40'E.

1326(I) Heard distant underwater explosion.

1954(I) Surfaced.

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— page 27 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol
1957(I) Strong aircraft radar signal on the A.R. closed to two
miles and then went out again. (SD radar range). Air-
craft contact #72.
2137(I) Sent serial #13.
2140(I) Aircraft radar contact on the A.R. Aircraft contact #73.
2309(I) Aircraft radar signal on the A.R. Aircraft contact #74.
2312(I) Four aircraft radar signals on the A.R. Aircraft contact
#75.
2355(I) Entered patrol area off the Northeast coast of KYUSHU.

14 April 1945

0406(I) Weak aircraft radar signal on the A.R. Aircraft contact
#76.
0412(I) SJ radar aircraft contacts, ranges 14,000 and 12,000
yards. One aircraft closed to 8,000 yards. Dived.
Aircraft contact #77.
0430(I) At 42 feet. Decided to patrol at 42 feet as there was
less than an hour of darkness remaining. Closed the
beach to patrol along the 100 fathom curve Southeast of
FUKA SHIMA.
1200(I) Position: Lat. 32°-33'N, Long. 132°-01'E.
2002(I) Surfaced.
2140(I) Three aircraft radar signals on the A.R. Aircraft
contact #78.

15 April 1945

0100(I) Aircraft radar signal on the A.R. Aircraft contact #79.
0255(I) SJ radar aircraft contact, range 3,900 yards, opening.
SJ radar lost contact at 9,500 yards. Aircraft contact
#80.
0415(I) Aircraft radar signal on the A.R. Aircraft contact #81.
0426(I) SD radar range 4 miles, closing fast. Dived. SJ
radar tracked him in to 2600 yards before the mast went
under. Plane passed down out starboard side. Evidently
he did not have contact as he did not drop any bombs.
Remained submerged for patrol along the hundred fathom
curve between FUKA SHIMA and MI SAKI.

-22-

— page 28 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1036(I) Heard two distant underwater explosions.
1200(I) Position: Lat. 32°-40'N, Long. 132°-02'-30'E.
1955(I) Surfaced.
2013(I) Sent HACKLEBACK serial #14.
2036(I) Received orders from ComSubSpac to depart area Sunset
          eighteenth for Midway.
2123(I) Aircraft radar signal on the APR, SD radar range 20 miles.
          Aircraft contact #82.
2147(I) PPI scope on the SJ radar out of commission.
2154(I) Dived to repair PPI Scope.
2257(I) PPI back in commission. Surfaced.
16 April 1945
0230(I) Aircraft radar signal on the APR, opening. Aircraft
          contact #83.
0425(I) Aircraft radar on the APR, closing. With only a short
          period of darkness remaining, decided not to fool with
          them any longer, so at
0444(I) Submerged for patrol off FUKA SHIMA.
1200(I) Position: Lat. 32°-34'N, Long. 131-56'E.
1953(I) Surfaced. 95, 97, and 151 mcs. land based radar signals
          on APR.
2005(I) Strong 155 mcs aircraft radar on the APR. Turned the
          SD radar on for a second. At least five or six aircraft
          contacts showed up on the SD radar screen, closest range
          at 24 miles. No B-29 raid scheduled for that night.
          Aircraft contact #80. Believe there was a large flight of
          planes OKINAWA bound.
2020(I) SD radar contact 2 miles. Dived.
2042(I) At 42 feet. Weak aircraft radar signal on the APR.
2052(I) Surfaced.

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— page 29 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

2106(I) Strong aircraft radar signal on the APR, SJ radar range
        18,000 yards, closing. Aircraft contact #84. Turned
        toward him to present a smaller radar target. He
        closed to 2 miles and then opened out again. SJ radar
        lost contact at 12,000 yards. Had numerous aircraft
        radar contacts on the APR the rest of the night.

2330(I) Dived when aircraft came into four miles, closing fast.
        Aircraft contact # 85.

2345(I) At 42 feet. APR signal still strong.

17 April 1945

0031(I) Surfaced.

0420(I) Strong aircraft radar signal on the APR. Aircraft con-
        tact #86.

0445(I) With an aircraft contact at 5 miles, decided to dive
        early for submerged patrol of FUKA SHIMA. Aircraft
        contact # 87.

1200(I) Position: Lat. 32°-30'N, Long. 132°-02'E.

2001(I) Surfaced.

2030(I) Proceeded to Northeast part of area.

2125(I) Sent HACKLEBACK serial #15.

2225(I) SJ radar aircraft contact, range 15,000 yards - closing.
        Aircraft contact #88.

2230(I) Range now 10,000 yards. Dived.

2300(I) At 42 feet. Aircraft radar signal on the APR - opening.
        Aircraft contact #89.

2314(I) Surfaced.

2325(I) Aircraft radar signal on the APR - opening. Aircraft
        contact #90.

18 April 1945

0020(I) Detected saltwater in the port reduction gear lube oil
        sump. (See Major Defects).

0454(I) Submerged.

-24-

— page 30 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

1100(I) A B-29 raid was scheduled for this time, but as we were
not assigned a lifeguard station for this raid continued
submerged patrol off the BUNGO. No planes sighted or
explosions heard.

1200(I) Position: Lat. 32°-32'N; Long: 132°-24'E.

1950(I) Surfaced.

1957(I) Took departure from area for Midway with OKINO SHIMA
bearing 002°T, distant 21 miles.

2105(I) Strong aircraft signal on APR (Contact #91). Signal
reached saturation then became weaker and faded out.

2134(I) SJ radar aircraft contact at 20,000 yards. Aircraft
contact #92.

2137(I) Range 13,000 yards, closing fast. Dived.

2155(I) Surfaced.

19 April 1945

0054(I) SJ radar contact, range 15,000 yards with weak but
conventional SJ radar interference.

0110(I) Received correct challenge and replied by keying SJ
radar. Exchanged calls with U.S.S. GATO. Resumed
course for Midway.

1200(I) Position: Lat. 31°-26'N, Long. 137°-13'E. Encountered
heavy seas from Southeast, barometer falling rapidly.

1226(I) Sighted picket boat through high periscope. Seas too
heavy for gunning so avoided.

1900(I) Received message from ComSubSrac informing any boat
in vicinity of 31°-47'N, 140°-10'E of a sinking MARU
reported by aircraft. Altered course towards that
point.

1920(I) Made trim dive.

1939(I) Surfaced.

20 April 1945

0015(I) APR contact on 154 mc. Believed to be aircraft keying.
A very bad night for flying with high winds, rain squalls,
and the barometer at 29.52" still dropping. SD radar
showed all clear.

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— page 31 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

0115(I) Began picking up very weak SJ radar interference and
          at same time SJ radar made a contact at 5,000 yards
          on approximately the same bearing. But our SJ to
          it and slowed to one-third speed. Pip very uncertain
          in the heavy seas. At the same time the ARh operator
          reported the aircraft radar had reached saturation and
          was being keyed: Flashed SJ radar and it showed all
          clear.

0127(I) Lost contact at 6,000 yards. The SJ radar technician
          was positive the interference had been from an SJ and
          advanced the theory that we had picked up one of our
          own boats running at radar depth. This seemed very
          improbable under the existing weather condition.

0139(I) A very strong pip appeared on the PPI at 14,000 yards
          and on the third sweep, in a matter of a few seconds,
          had moved out two hundred yards and disappeared. This
          checked with the ARh signal confirming the presence of
          a Jap aircraft. Keyed the SJ on the bearing on which
          we had lost contact with the first pip, but without
          success. The interference had also disappeared.

0147(I) Continued previous course at standard speed.

0157(I) SJ contact bearing 008°T, range 13,000 yards, ac-
          companied by SJ interference. This immediately led me
          to believe that the radar technician had been correct
          in saying he thought he had a friendly sub running at
          42 feet on the first contact. Keyed the SJ but re-
          ceived no answer.

0205(I) Lost contact.

0221(I) Large pip appeared on the radar at 17,000 yards and
          remained steady - definitely a ship and not aircraft.

0222(I) Bridge reported firing in the direction of the contact
          immediately following by a terrific explosion which
          lighted up the whole sky. The pip on the radar jumped
          to saturation at the same instant and then disappeared.
          Someone, probably the "FOGY", had blown up an ammu-
          nition ship right in our faces. Gunfiring continued
          on the horizon so we waited to see what might develop.

0245(I) Gunfiring continued intermittently over the horizon and
          we heard many depth charges. Commenced closing and wat-
          for radar interference which had since disappeared, hoping
          that whoever had done this excellent job was not being
          worked over. It is amazing that the torpedoes could run
          at all in this heavy sea, the barometer then reading
          29.50".

-26-

— page 32 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

0248(I) Weak SJ radar interference reappeared which greatly
          relieved us in knowing that whoever made the attack
          was on the surface and well clear of the firing.

0258(I) Nothing more appeared on the radar and not desiring
          to close any wild firing escorts continued enroute
          Midway. Our position was uncertain, not having had
          a fix for 30 hours, but it was fairly certain in my
          mind that the ship sunk had been the sinking MAIZURU
          in ComSubSracs despatch.

0447(I) Submerged to replace lube oil cooler to port reduction
          gear with spare.

1200(I) Position: Lat. 31°-26'-00"N, Long. 141°-28'-00"E.

1357(I) Completed repairs. Surfaced.

1405(I) Received message from ComSubSrac requesting infor-
          mation concerning an attack in the vicinity of
          HACHIJO SHIMA on the 19th.

1638(I) Sent serial #16 giving details of attack witnessed
          this morning.

1830(I) Obtained first fix in 48 hours. Sent serial #17 to
          ComSubSrac correcting position given in serial #16.

21 April 1945

0854(K) SD radar contact 10 miles. No contact on the AR.
          Dived. We were keying SD 5 seconds out of every
          30 seconds.

0929(K) Surfaced.

1200(K) Position: Lat. 31°-49'-30"N, Long. 147°-10'-00"E.

22 April 1945

1200(K) Position: Lat. 31°-55'-00"N, Long. 154°-26'-00"E.

23 April 1945

0528(L) Made trim dive.

0541(L) Surfaced.

1200(L) Position: Lat. 31°-21'-00"N, Long. 160°-38'-00"E.
                                        -27-

— page 33 —
CONFIDENTIAL
U.S.S. BACU - Report of First War Patrol

24 April 1945
1200(L) Position: Lat. 30°-59'-00"N, Long. 167°-07'-00"E.
2350(L) Sent BACU/BACU serial #16 to ComTaskGroup 17.3
requesting rendezvous off Midway.

25 April 1945
0559(L) Made trim dive.
0719(L) Surfaced.
1200(L) Position: Lat. 30°-00'-00"N, Long. 172°-40'-00"E.

26 April 1945
0720(L) Sighted mine. Position: Lat. 29°-11', Long. 177°-14'E.
0802(L) Sank mine by 20 mm. gunfire.
1200(L) Noon position: Lat. 29°-07'-00"N, Long. 178°-10'-00"E.
Crossed 180th meridian

27 April 1945
0115(L) Arrived Midway for refit.

-20-

— page 34 —
The following is a list of common words that start with the letter 'A':

*   **A**
*   **Able**
*   **About**
*   **Above**
*   **Accept**
*   **Across**
*   **Act**
*   **Action**
*   **Add**
*   **Address**
*   **Admire**
*   **Admit**
*   **Adult**
*   **Advance**
*   **Advantage**
*   **Adventure**
*   **Advice**
*   **Advise**
*   **Affair**
*   **Affect**
*   **Afford**
*   **Afraid**
*   **After**
*   **Afternoon**
*   **Again**
*   **Against**
*   **Age**
*   **Agency**
*   **Agent**
*   **Ago**
*   **Agree**
*   **Agreement**
*   **Ahead**
*   **Aid**
*   **Aim**
*   **Air**
*   **Aircraft**
*   **Airline**
*   **Airport**
*   **Alarm**
*   **Album**
*   **Alcohol**
*   **Alert**
*   **Alien**
*   **Alike**
*   **Alive**
*   **All**
*   **Allow**
*   **Almost**
*   **Alone**
*

— page 35 —
CONFCONFIDENTIAL
U.S.S. TIGRON (SS-317)
Report of First War Patrol
(Cont'd)

CONTACTS (Cont'd)
NO. DATE | LAT. & LONG. | TIME | INIT. | HDG. | SPD. | COURSE | REMARKS
7 0221(I) | 31-53-00N | U | 17000 | UNKNOWN | A.B.N. | Large explosion sighted. Contact disappeared. See
  20 Apr 45 | 140-13-00E | yards | | | | | narrative page 26.

— page 36 —
CONFIDENTIAL
U.S.S. LAO - Report of First War Patrol

(C) AIRCRAFT CONTACTS (Cont'd).

tension eased up. During bright moonlight nights it was particu-
larly nerve racking. Evasion on the surface consisted of running
at slow speed to reduce the wake, making radical course changes,
and on SJ contact turning toward or away to present a smaller
radar target. Sometimes this worked and at other times the plane
would circle at two to four miles fighting a war of nerves until
finally we would drop to forty two feet to await his departure.

Many of the aircraft contacts were believed to be high alti-
tude night fighters, especially those using around 206 mc radar.
These seldom used the circling tactics as did the 150 mc series
planes, but generally went on their way without bothering us. On
only a very few occasions out of ninety some contacts did planes
get in close without previous warning on the AR. Surprisingly
enough we were never bombed or straffed.

-31-

— page 37 —
CONFIDENTIAL
U.S.S. TROUT
(A) ATTACK
U.S.S. TROUT - Report of First War Patrol
NO. DATE
GUN ATTACK NO 1 PATROL NO 1
DATE: 20 March 1945 Lat 31-09N Lon 142-22E
TARGET DATA - DAMAGE INFLICTED

Description:
Two 50-100 ton picket boats.
Ship(s) Damaged:
Uncertain.
Ammunition Expended:
41 rounds of 5"/25 caliber, 1 round 40MM.

Targets were contacted in the late afternoon of 19 March
1945. Lost contact and then regained contact after dark. At
dawn 20 March, 1945, closed on surface for gun attack. Each
picket boat was 110 feet in length, 20 to 40 tons, and had one 20MM.
They were lying about 1000 yards apart. Opened fire with 5"
yards closing with 5" and 40MM. The 40MM fired one round and
jammed. After the second round of 5" was fired, targets opened
fire with machine guns. With our 40MM out of commission,
and with the range still too long to hit with 20MM, we maneuvered
radically and continued to fire 5" inch. Targets maneuver

— page 38 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS

The enemy's anti-submarine measures consisted of aircraft
patrols and on two occasions the miscellaneous dropping of depth
charges throughout the area. On March 28th, charges were dropped
from 1640 until 1813; On April 6th, they were dropped from 1725
until 1921. Surface patrols were encountered only on the above
two dates. Two PC type patrol boats were contacted echo ranging
on the 28th which we avoided. On April 6th, three patrol craft
ranging from a landing craft to a PC boat were contacted but
were not echo ranging. Low flying "JAKES" circled the patrol
craft. An A/S sweep on the 6th was followed by the sortie of
the "YAMATO".

(K) MAJOR DEFECTS

On the morning of 14 March, a high pressure air leak to the
main ballast tank blow manifold was noted. On the nights of the 14th and
15th, the valves on the main ballast tank blow manifold (4 valves)
were reseated and ground in. By the 19th these valves were leak-
ing again. They had previously been worked on by Key West, Panama,
and Pearl, and numerous times by ship's force, but never held
longer than a week. It is considered that this manifold should
be replaced at the first refit.

On 13 March the Bendix log continued to register 15 knots
while submerged at 90 feet. An inspection of the master unit
disclosed that the teeth on the worm gear (PC #60) in the main
drive gear chain had been completely worn away by the driving
worm. This gear is not included in the allowance list of on-
board spares so it was necessary to manufacture one by hand.
Twenty four hours work produced a very rough, but workable fac-
simile and the log was put back in operation and remained in
commission for the duration of patrol.

On 11 April, while making morning dive, the outboard exhaust
valve on #1 main engine failed to close. The inboard valve was
closed and the engine was not flooded. Upon inspection, it was
found that a steel pin in the lower valve linkage had partially
slipped out, striking the housing and preventing the valve from
completely closing. The pin is normally held secure by steel
snap rings on each end but the ring on one end of the steel
snap ring was made and installed. The last
work performed on this valve was accomplished by Submarine Base,
Pearl Harbor.

On the morning of 18 April, a higher than normal reading was
observed on #2 reduction gear lube oil sump liquidometer gauge.
It was discovered that the oil cooler had developed a leak and
saltwater was leaking into the oil side of the cooler. The salt

-33-

— page 39 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

(K) MAJOR DEFECTS (Cont'd)

water to the cooler was secured, and the cooler drained of salt
water. Reduction gear sump was pumped dry and flushed with 30
gallons of oil then refilled with oil.

It was decided not to replace the cooler in the area as only
two days remained on station. On 20 April, submerged to 90 feet
and new cooler was installed requiring six hours to accomplish
the change. The present arrangement does not permit the removal
of the cooler on the port side without removing the strainer, thus
requiring that the work be done submerged with the shaft stopped.
A no oil would be permitted to pass the reduction gear. A
change will be requested for this refit to obviate this condition
and a valve is required to be installed to isolate the oil side
of the cooler when the by-pass is in use.

(L) RADIO

Reception of fox schedule at all times was excellent except
for the two hour period between 1800 and 2000 GCT. No appreciable
amount of enemy jamming of fox schedule was encountered. Communi-
cation on area frequency was excellent. The use of two radiomen
on watch on station makes even more pressing the need for two
telegraphic typewriters. No material failures were encountered.
In transmissions to ComSubPac a great deal of jamming in form of
random keying was encountered, however little difficulty was ex-
perienced in contacting naval shore stations. NPM was especially
prompt in answering up. NFM proved less satisfactory in this
respect.

A portable DU-1 direction finder loop coupled with the RU-18
receiver was provided this vessel at Pearl Harbor to be tried out
in conjunction with lifeguard missions. It was also employed to
take bearings on the homing station on Midway. Bearings within one
degree of accuracy were obtained up to 50 miles and within three
degrees of accuracy up to 300 miles, at which range the signal was
barely audible. During the training period the loop was used in
conjunction with a "Gibson girl" in a simulated lifeguard mission
and was found to give satisfactory bearing at 20 miles. While
assigned lifeguard duties, this vessel guarded 465 Kcs, the fre-
quency used on the "Gibson girl" transmitter in addition to the
lifeguard frequency but no signals were ever detected. Several
B-29 raids took place on KYUSHU while we were in the BUNGO
SUIDO, however to the best of our knowledge no planes came down
within our reach. Though no chance occurred to prove the worth
of this equipment under actual rescue conditions, it is strongly
recommended that it be standard equipment on all submarines.

-34-

— page 40 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of First War Patrol

(M) RADAR

SD radar was keyed from one to two seconds at twenty to thirty
second intervals within 500 miles of land enroute to and from area.
The radar on station was kept in a standby condition and keyed
on strong Air contacts and on SJ contacts to confirm the presence
of enemy aircraft. Ranges were obtained on the SD up to twenty
miles. An Air setting of between 75 and 90 megacycles was noted
to cause strong distortion of SD sweep. Due to an excellent over-
haul in Pearl Harbor, no maintenance difficulties were experienced.

The SJ radar gave excellent results. Ranges up to 185,000
yards were obtained on KYUSHU. A range of 35,000 yards was ob-
tained on the "YAMATO". Ranges on aircraft ranged from 3,900
yards to 36,000 yards. SJ radar keying was used to exchange re-
cognition signals with the U.S.S. GATO. Material failures caused
only two hours loss of operating time in area. The present in-
stallation of KVA radar motor generator is highly unsatisfactory.
This condition has been known since the first SJ radar was install-
ed in a submarine, and it is hoped that it will be corrected before
the war ends.

(N) SONAR GEAR AND SOUND CONDITIONS

The only casualty to the JCA gear was the shearing of the
JK cable due to carelessness in lowering the head. The cable was
replaced by own ship's force. Heavy interference was caused in QB
receiver due to a chattering relay in the QB driver. This trouble
was experienced during the training period at Pearl Harbor and
was temporarily remedied by cleaning the relay. An entirely new
relay was requested at the time, but was not provided as none were
available. It is hoped that this matter will be rectified during
the refit.

The new dynamic headphones for the JP were found to be highly
satisfactory. Strong interference appeared on the JI due to loose-
ly packed phone cable. Ship's force effected a temporary remedy
by clamping the cable down after it left the shaft. The cable will
be repacked and if necessary replaced during the refit period.

(O) DENSITY LAYERS

Thirty six SBT cards were taken and are being forwarded to
the Vice Chief of Naval Operations. The following were the only
gradients encountered:

-35-

— page 42 —
[UNCLEAR: CONFIDENTIAL]
U.S.S. [UNCLEAR: PINTADO]
(U) Report of First War Patrol

(A) [UNCLEAR: DISTANCES]
Sail from harbor to Midway | 1501 miles | 171.5 gallons
Midway to area | 3565 miles | 3520 gallons
In area | 3650 miles | 2090 gallons
Area to Midway | 3215 miles | 3641 gallons

(B) [UNCLEAR: PATROL SUMMARY]
Days enroute to area | 15
Days in area | 27
Days returning from area | 9
Days submerged | 20

(C) [UNCLEAR: FUEL CONSUMPTION]
[UNCLEAR: TOTAL FUEL] | [UNCLEAR: TOTAL DAYS]
23 | 22065 gal. | 20 days

(U) Summary of the following characteristics were encoun-
tered using S-1 and S-2, S-3:

| Time/Date | Lat/Long | Range | Bearing | Speed | Type |
|---|---|---|---|---|---|
| 1. 2125(I) | 31-07-30 | 90 | 300 | 30 | Land Base |
| 3/21/45 | 139-22-00 | | | |

— page 43 —
Confidential
U.S.S. [UNCLEAR: MACAW]
C. [UNCLEAR: TLL/DA] - Report of First War Patrol

8.  1945(I)      Area   151   500   25    LAND BASE
    3/25/45
9.  0215(I)      Area   154   1000  10    Aircraft
    3/27/45
10. 2150(I)      Area   152   1200  7.5   Aircraft
    3/29/45
11. 0225(I)      Area   200   1400  10    Aircraft
    3/30/45
12. 0300(I)      Area   203   1300  6-6   Aircraft-IFF
    3/30/45
13. 1930(I)      Area   135   500   20    Land Base
    3/31/45
14. 1930(I)      Area   140   500   10    Land Base
    3/31/45
15. 2000(I)      Area   151   1200  10    Aircraft
    3/31/45
16. 0200(I)      Area   140   1000  7.5   Aircraft
    4/2/45
17. 0013(I)      Area   210   500   5     Land Base
    4/3/45
18. 0220(I)      Area   159   1000  20    Land Base-
    4/3/45                                IFF. Key
                                          tice/sec.
                                          Aircraft
19. 0430(I)      Area   210   1000  10    Land Base-
    4/3/45                                IFF
20. 1950(I)      Area   96    300   3-5   Aircraft
    4/3/45
21. 2110(I)      Area   200   1000  10    Aircraft
    4/11/45                               IFF
22. 0003(I)      Area   193   500   6-6   Aircraft
    4/12/45                               IFF

-30-

— page 44 —
CONFIDENTIAL
U.S.S. PADDA REPORT of First War Patrol
(D) CONTINUED

23. 2340(I) Area 191 1000 5 Aircraft
    4/12/45
24. 2140(I) Area 201 1000 10 Aircraft
    4/14/45 4-4
25. 2330(I) Area 200 1000 10 Aircraft
    4/17/45

Some of the many contacts had characteristics which were sus-
pected of being enemy IFF. Contacts obviously used in conjunction
with an aircraft with the following characteristics are
listed in the above list.

A double pulse was obtained on the B-A screen, both of the
same intensity and changing intensity proportionately. In a few
cases the radar was keyed regularly about twice/second. In one
case the double pulse broke down into two 4 microsec pulses.
The time between pulses were not always the same.

2. No radar jam or deception was encountered.

CONCLUSIONS:
1. No enemy signals were intercepted.
2. Only one enemy jam was encountered was random with
   no series.
3. No enemy deception was encountered.

RECOMMENDATIONS:
1. 17 & 18 cs. 10 miles The target
   double
   get used
   and echo
   scale.
   target on
   freq. used
   1-2 and
   at 4 sec.
   vals.

2. 10 cs. 11,000 The target
   yards standard
   12-14
   (other lower)
   lower 1-2
   1-2 and
   at 4 sec.
   vals.

-39-

— page 45 —
CONFIDENTIAL
U.S.S. MACIMBAC
(V) Report of First War Patrol
(U) REMARKS

It is with deep regret that the MACIMBAC returns from her
first war patrol with empty hands. It was impossible to close
the only contact worthy of torpedo fire, however it is hoped that
our contact reports assisted in some measure in the destruction
of the target and her escorts.

It was gratifying to be able to qualify as many men during
this patrol as we did and speaks well for their spirit and will-
ingness to learn. Both officers and men performed their duties
in a highly commendable manner and the surprisingly few
casualties which occurred on this fourth group, that justly re-
warded the efforts of all hands in the shakedown and training
periods.

— page 46 —
SUBMARINE DIVISION TWO FORTY ONE

FB5-241/A16-3
Serial # 018

Care of Fleet Post Office,
San Francisco, California,
27 April 1945.

C-O-N-F-I-D-E-N-T-I-A-L

FIRST ENDORSEMENT to
U.S.S. HACKLEBACK (SS295)
Report of First War
Patrol dated 27 April 1945.

From : The Commander Submarine Division TWO FORTY ONE.
To : The Commander-in-Chief, United States Fleet.
Via : The Commander Submarine Squadron TWENTY-FOUR.
The Commander Submarine Force, Pacific Fleet Administration.
The Commander-in-Chief, Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of War Patrol No. ONE.

1. The first war patrol of the HACKLEBACK, conducted in
Bungo [HANDWRITTEN: N]Shido area, was of 51 days duration with 27 days in the area.

2. Only one contact worthy of torpedo fire was made. This
contact was the "Yamato" task force. The HACKLEBACK sent out valuable
contact reports but was unable to close to firing range.

3. An early morning gun battle was fought with two (50-100
ton) picket boats. The engagement was broken off when a jam occurred on
the 40mm gun and the enemy was alerted and returned the fire.

4. The Commanding Officer, Officers and crew of the
HACKLEBACK are congratulated on the completion of this patrol and
returning with a very clean and well trained boat.

[SIGNATURE: D. F. Williamson]
D. F. WILLIAMSON.

— page 47 —
FC5-24/A16-3
Serial: 086
C-O-N-F-I-D-E-N-T-I-A-L

SUBMARINE SQUADRON TWENTY-FOUR.
11/dn
Care of Fleet Post Office,
San Francisco, California,
27 April 1945.

SECOND ENDORSEMENT to
USS HACKLEBACK Report of
First War Patrol.

From: The Commander Submarine Squadron TWENTY-FOUR.
To : The Commander-in-Chief, U. S. Fleet.
Via : (1) The Commander Submarine Force, Pacific Fleet,
Administration.
(2) The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of War Patrol Number ONE.

1. Forwarded, concurring in the remarks of the Commander
Submarine Division TWO HUNDRED FORTY-ONE.

2. The Commander Submarine Squadron TWENTY-FOUR congratulates
the Commanding Officer, officers and crew upon the completion of this
arduous patrol. While it is regrettable that no opportunity was afforded
to inflict torpedo damage on the enemy, it is felt that the experience
gained on this patrol will make the HACKLEBACK an even more effective
fighting unit in the future.

[SIGNATURE: F. W. FENNO.]
F. W. FENNO.

— page 48 —
FF12-10(A)/A16-3(18)

Serial 01110

CONFIDENTIAL

THIRD ENDORSEMENT to
HACKLEBACK Report of
First War Patrol.

SUBMARINE FORCE, PACIFIC FLEET.
[STAMP: 5-93937]
Care of Fleet Post Office,
San Francisco, California.
12 May 1945.

NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

Ga

COMSUBSPAC PATROL REPORT NO. 749
U.S.S. HACKLEBACK - FIRST WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To : The Commander in Chief, United States Fleet.
Via : The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of First War Patrol
(6 March to 26 April 1945).

1. The first war patrol of the HACKLEBACK, under the command of
Lieutenant-Commander F. E. Janney, U. S. Navy, was conducted in the area off Bungo
Suido. During part of the patrol, the HACKLEBACK was part of a coordinated attack
group with the SILVERSIDES and the THREADFIN, the commanding officer of the
SILVERSIDES being group commander.

2. Area coverage was thorough and patrol was well conducted. On
6 April the HACKLEBACK made radar contact with a fast group of ships which later
proved to be the YAMATO task force. The HACKLEBACK sent very valuable contact
reports, which aided other forces in locating and subsequently sinking the YAMATO,
a light cruiser, and two destroyers. A gun attack was attempted on two patrol
boats, but was broken off by the commanding officer because of the radical maneuvers
of the target, return fire, and jamming of 40 mm. gun.

3. Award of Submarine Combat Insignia for this patrol is authorized.

4. The Commander Submarine Force, Pacific Fleet, congratulates the
commanding officer, officers, and crew of the HACKLEBACK for this first successful
patrol during which she expertly transmitted vital information about the enemy
task force.

MERRILL COMSTOCK.

Distribution & Authentication
next page.

- 1 -

EXTRA - ORIGINAL
SORG. MICRO
PHOTO LAB OP-16
RETURN TO F-4253

— page 50 —
[HANDWRITTEN: 1ST COPY]

SS295/A16-3/(027)

U.S.S. HACKLEBACK (SS295)
Care of Fleet Post Office,
San Francisco, California,
12 July 1945

C-9 [HANDWRITTEN: DECLASSIFIED I-A-L]

From: The Commanding Officer.
To : The Commander in Chief, United States Fleet.
Via : (Official Channels).

Subject: U.S.S. HACKLEBACK (SS295) - Report of Second
War Patrol.

Enclosure: (A) Subject Report.
(B) Track Chart.

1. Enclosure (A), covering the second war patrol
of this vessel conducted in the vicinity of SAKI SHIMA GUNTO
during the period 21 May to 12 July 1945, is forwarded here-
with.

F. E. JANNEY.
[SIGNATURE: F. E. Janney]

[STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.C]
[HANDWRITTEN: BY OP-09B9C DATE 5/30/22]

[STAMP: DECLASSIFIED]

— page 51 —
[STAMP: CONFIDENTIAL]
U.S.S. MACKEREL
Report of Second War Patrol.

(A) PROLOGUE:

Arrived Midway 26 April 1945 for refit by U.S.S. A.G. (AS23).
The refit in general was excellent and was completed on 11 May 1945.
Conducted five days training underway, fired five torpedoes. Readi-
ness for sea date, 21 May 1945.

(B) NARRATIVE:

List of Officers and Chief Petty Officers attached:

OFFICERS | RANK | NO. OF WAR PATROLS
Frederick L. J. | Lt.Cdr., USN | 12
Hilbert J. CROSS | Lieut., USNR | 10
Walter B. GRIFFITH | Lieut., USNA | 3
James R. SHAMBLIN | Lieut., USN | 7
Jack W. SMITH | Lieut., USNR | 3
John W. GILBERT | Lieut., USNR | 2
Robert B. BROWN | Lt(jg), USN | 7
James L. Le CAUSEY | Lt(jg), USN | 2
Robert T. SMITH | Lt(jg), USNR | 2
David H. PAUL | Ensign, USN | 2

CHIEF PETTY OFFICERS
MASON, Glen H. | CTM, USN | 10
MILLER, Claude | CPhM, USN | 10
SEIDLE, Newton | CSM, USN | 12
LUDWIG, Frank (n) | CMOM, USN | 9
ANTKOWICZ, Stephen (n) | CTM, USN | 4
BISHOP, Herbert R. | CM(AA), USN | 6

21 May 1945

1456(Y) Underway for Saipan, in accordance with ComTaskGroup
17.5 Operation Order No. 16-45.

1554(Y) Made trim dive.

1610(Y) Surfaced.

23 May 1945

1200(L) Position: lat. 26°-37'N, long. 177°-48'E.

24 May 1945

0525(M) Made trim dive.

-1-

— page 52 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol
24 May 1945 (Cont'd)

0547(M) Surfaced.
1054(M) Conducted practice battle surface, fired all guns.
1200(M) Position: Lat. 24°-26'N, Long. 172°-38'-30"E.

25 May 1945

0945(L) Made trim dive.
0958(L) Surfaced.
1200(L) Position: Lat. 22°-50'N, Long. 166°-41'-30"E.

26 May 1945

1200(L) Position: Lat. 21°-03'N, Long. 161°-29'-30"E.
1344(L) Conducted practice battle surface, fired all guns.
1410(L) Made trim dive to test depth. Remained submerged to work
         on sticky automatic by-pass valve on hydraulic plant and
         to exercise new personnel on the bow and stern planes.

1620(L) Surfaced.
2203(L) Sent message to ComTaskGroup 17.7 giving time of entry
         into "lane" and ETA Saipan rendezvous.

27 May 1945

1055(L) Conducted practice battle surface, fired all guns.
1200(L) Position: Lat. 19°-47'N, Long. 158°-07E.
1830(K) Received message from ComTaskGroup 17.7 acknowledging
         our rendezvous message and designating our escort into
         Saipan.

28 May 1945

0928(K) Made trim dive.
0950(K) Surfaced.
1012(K) Sighted submarine through the high periscope bearing 281°T.

-2-

— page 53 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol
28 May 1945 (Cont'd)

1015(K) Exchanged recognition calls with U.S.S. PERCH (SS313).
1200(K) Position: Lat. 18°-18'N, Long. 153°-32'E.

29 May 1945

1200(K) Position: Lat. 17°-02'N, Long. 147°-51'E.
1941(K) Picked up Sarigan Island on the radar, bearing 279° True,
        range 80,000 yards.

30 May 1945

0149(K) First of a series of SJ radar and sight contacts with
        our own forces. Had twenty eight ships in sight at one
        time. Maneuvered to avoid.
0435(K) Made rendezvous with PC 1082, our escort into Saipan.
0845(K) Moored starboard side to U.S.S. ORION. Effected minor
        voyage repairs.

31 May 1945

        Day of departure delayed one day to check the hydraulic
        system (see major defects).

1 June 1945

1349(K) Underway for patrol in accordance with ComSubspac
        Operation Order No. 116-45 of 28 May 1945.
1902(K) Made trim dive.
1903(K) Lost propulsion on port shaft. Surfaced.
1904(K) Lying to, replacing contactor on the overload relay (see
        major defects).
1924(K) Underway on two main engines.

2 June 1945

0800(I) Made trim dive.
0820(I) Surfaced.

-3-

— page 54 —
CONFIDENTIAL
U.S.S. HACKLEBACK
Report of Second War Patrol
(Cont'd)

2 June 1945
1200(I) Position: Lat. 18°-21'N, Long. 142°-47'E.
1354(I) Sighted PB2Y, range 9400 yards, exchanged recognition
         signals.

3 June 1945
0733(I) Made trim dive.
0752(I) Surfaced.
1200(I) Position: Lat. 20°-46'N, Long. 138°-15'E.
1412(I) Sighted friendly submarine through the high periscope,
         bearing 230° True.
1415(I) Exchanged recognition signal with U.S.S. BREAM (SS243).
1449(I) Exchanged information over the VHF.

4 June 1945
1200(I) Position: Lat. 20°-49'N, Long. 132°-50'E.
1615(I) Sighted U.S. Hospital Ship, bearing 270°T, range 12,000
         yards.
1630(I) Encountered strong winds and heavy seas with the seas and
         wind shifting toward the Southeast.
2215(I) The wind and seas increasing, changed course to 170°T and
         headed into the sea at one third speed on one main engine.
2315(I) A gale blowing, wind and seas still increasing, decided to
         dive and ride out the storm submerged.

5 June 1945
0845(I) Surfaced. Wind and seas abated.
1200(I) Position: Lat. 20°-40'N, Long. 131°-31'E.
2011(I) Received message from ComSubSpac telling the U.S.S.
         SILVERSIDES that we would relieve her on the sixth after
         sunset.

-4-

— page 55 —
CONFIDENTIAL
U.S.S. HACKLEBACK
5 June 1945
M - Report of Second War Patrol
5 June 1945 (Cont'd)

2233(I) Sent HACKLEBACK serial #1 to ComSubSpac saying we were
         delayed by heavy weather and were unable to arrive on
         station until the night of the seventh.

2347(I) SJ radar interference bearing 019°T.

6 June 1945

1000(I) Received message from ComSubSpac telling us to perform
         lifeguard duties for four daily flights between JOLO
         and LUZON on the eighth and ninth of June.

1200(I) Position: Lat. 20°-40'N, Long. 124°-51'E.

1700(I) Made trim dive.

1720(I) Surfaced.

1914(I) Sighted Batan Island bearing 252°T, distance 70 miles.

2141(I) SJ radar out of commission, decided not to transit the
         islands with the radar out of commission. Commenced
         circling while effecting repairs to the radar.

2205(I) Sent message on area frequency addressed to all submarines,
         giving our position and telling them our radar was out of
         commission.

7 June 1945

0052(I) SJ radar back in commission.

0426(I) Picked up KASHO TO on the radar bearing 340°T, distance
         85,000 yards.

0452(I) SJ radar interference bearing 282°T.

0555(I) SD radar contact 20 miles, did not answer IFF.

0817(I) SD radar contact 8 miles, did not answer IFF. Dived.

0904(I) Surfaced.

1013(I) 150 meg. land based radar on the APR.

1015(I) 154 meg. land based radar on the APR.

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— page 56 —
CONFIDENTIAL
U.S.S. HICKORY
7 June 1945

Report of Second War Patrol

7 June 1945 (Cont'd)
1017(I) 151 meg. land based radar on the APR.
1104(I) SD radar contact 14 miles, opening. Did not answer IFF.
1200(I) Position: Lat. 23°-04'N, Long. 121°-50'E.
1308(I) 105 meg. land based radar on the APR.
1520(I) 156 meg. land based radar on the APR.
1745(I) 97 meg. land based radar on the APR.
1900(I) Sighted INTEROCEAN SMALL through the high periscope,
bearing 030°T, distance 45 miles.
2205(I) SJ radar interference bearing 060°T.
2225(I) Received recognition signals with the U.S.S. SPANISH
(SS404) with the SJ radar. Exchanged information on the
SJ radar as we were unable to establish communications
on VHF.

8 June 1945
0319(I) Had what looked like SJ radar interference on the SJ radar
bearing 053°T. Steadied on the bearing of the interference
to close. Interference faded out without developing a
contact. Since we were only ten miles from an air-surface
zone, decided it was from our own surface craft (see radar)
0600(I) 165 meg. land based radar on the APR.
0610(I) 156 meg. land based radar on the APR.
0700(I) On lifeguard station.
1015(I) 197 meg. U.S. surface craft air search radar on the APR.
1044(I) SD radar contact 8 miles, closing. No IFF. Dived.
1055(I) Surfaced.
1200(I) Position: Lat. 24°-14'N, Long. 125°-07'E.

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— page 57 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

8 June 1945 (Cont'd)

1240(I) 153 neg. land based radar on the A.R.
1700(I) 222 neg. U.S. Surface craft air search radar on the A.R.
1840(I) 85 neg. land based radar on the A.R.
2112(I) Received message from ComSubSae telling us the flight
          between Luzon and Okinawa for the 8th had been cancelled
          and that flights would be made on the 9th and 10th.
2145(I) 10 centimeter radar interference on the SJ radar. Headed
          in the bearing of the interference but unable to develop
          a contact before it faded out. Same interference as en-
          countered last night.
          Numerous sight and radar contacts with our own aircraft
          all day long.

9 June 1945

          Patrolling on lifeguard station.
1200(I) Position: Lat. 24°-05'N, Long. 124°-33'E.
1350(I) 156 neg. land based radar on the A.R.
1525(I) 10 centimeter radar interference on the SJ radar, same
          interference as encountered on two previous occasions.
1535(I) 100 neg. land based radar on the A.R.
1538(I) Received message from ComSubSae informing us that
          flights between Luzon and Okinawa had been cancelled for
          today and would now be made on the 10th and 11th.
1545(I) SD radar contact 18 miles. No IFF.
2044(I) SD radar contact 19 miles. No IFF.
2059(I) Sighted searchlight beam on ISHIGAKI S.L.A. It was on
          for about fifteen minutes.

10 June 1945

          Set course for even day lifeguard station.
0932(I) Received message cancelling flight between Luzon and
          Okinawa due to weather. Flights to be made on the 11th
          and 12th.

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— page 58 —
CONFIDENTIAL
U.S.S. HACKLEBACK
10 June 1945 (Cont'd)
U.S.S. HACKLEBACK - Report of Second War Patrol

0441(I) SD radar contact, distance 11 miles. No IFF. Closed to
        one mile and then opened out again.
1019(I) Made trim dive.
1026(I) Surfaced.
1200(I) Position: Lat. 24°-20'N, Long. 125°-07'E.
1252(I) SD radar contact, IFF, range 10 miles. PBM commenced
        circling the area.
1253(I) Tested VHF with PBM patrol plane. He was able to hear us
        but we were unable to hear him. Established communication
        on 4475 kcs. (see radio).
1521(I) Sighted mine. Position: Lat. 24°-29'N, Long. 125°-10'E.
        Sank mine with 20MM gunfire.

Numerous friendly aircraft contacts throughout the day.

11 June 1945

        Patrolling on odd day lifeguard station.
0952(I) 10 centimeter radar interference on the SJ radar. Same
        interference as encountered on previous occasions.
1043(I) Made trim dive.
1052(I) Surfaced.
1115(I) Playmate Baker called us on 4475 kcs and informed us he
        was on station. We had no information on any plane
        having been assigned to this area. Attempted to establish
        communications on the VHF without success (see radio).
1200(I) Position: Lat. 24°-09'N, Long. 124°-36'E.
2315(I) Received message from Comsubspac informing us that two
        F4U's, one PBM, and four R4D's with voice calls Roggles,
        Seahorse Green, and Seahorse Red respectively, en route
        to Okinawa would be in our vicinity from 1200(I)
        to 1400(I).
Numerous friendly aircraft contacts throughout the day.

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— page 59 —
CONFIDENTIAL
U.S.S. HACKLEBACK
- Report of Second War Patrol

12 June 1945

Patrolling on lifeguard station.

0509(I) SD radar contact, range 14 miles, closing. No IFF.

0514(I) Dived.

0544(I) Surfaced.

1200(I) Position: Lat. 24°-15'N, Long. 125°-07'E.

1400(I) Intercepted message on 4475 from Seahorse Red 5 to Playmate
informing him that they were passing through his
station.

Numerous radar and sight contacts with our own aircraft
attacking IHEYA JIMA.

13 June 1945

Patrolling on lifeguard station.

0913(I) Made trim dive.

0929(I) Surfaced.

1200(I) Position: Lat. 24°-06'N, Long. 124°-35'E.

Numerous sight and radar contacts with our own aircraft.

14 June 1945

Patrolling on lifeguard station.

0512(I) 10 centimeter radar interference on the SJ radar. Same
interference as encountered on previous occasions.

0746(I) Made trim dive.

0759(I) Surfaced.

1056(I) Sighted a BM bearing 130°T. Exchanged recognition signals.

1200(I) Position: Lat. 24°-15'N, Long. 125°-05'E.

1820(I) Emergency IFF on the SD radar, range 15 miles. The range
was closing, never did gain sight contact.

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— page 60 —
CONFIDENTIAL
U.S.S. HACKLEBACK
14 June 1945

- Report of Second War Patrol
(Cont'd)

1826(I) Sent message on 4475 to "Character" informing him that an
aircraft had passed us at a range of 10 miles with his
IFF on and that we had not seen the plane.
1828(I) "Character" rogered for the message and relayed it to
"Glacier".
Numerous sight and radar contacts with our own aircraft
striking MIYAKO JIMA.

15 June 1945

Patrolling on life guard station.
0002(I) Received message from Comsubspac informing us that com-
mencing 4 June, daily flights would be made between Luzon
and Okinawa by C-46's and C-47's with Northbound flights
using voice call "Cowpox" and Southbound flights using
"Jukebox". One B-17 and one PBM with voice calls Jukebox
and Tiger respectively would orbit our vicinity daily
between 0900(I) and 1600(I).
0844(I) Made trim dive.
0853(I) Surfaced.
1020(I) Sighted one PBM bearing 135°T.
1056(I) Established communication with Playmate 6 on VHF.
1200(I) Position: Lat. 24°-08'N, Long. 124°-36'E.
1209(I) Playmate 6 called us on VHF and asked if we had received
a transmission from Ill Tiger concerning a plane crash.
We sent back negat.
1210(I) Playmate 6 relayed the following message to us from Ill
Tiger: "No need for you to come up. There is nothing
showing but a bit of wreckage".
1218(I) Called Playmate 6 on VHF to try and get more information
about the downed plane. Playmate 6 informed us that
Playmate 2 would be with us shortly and that Ill Tiger had
not given the position of the downed pilot.

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— page 61 —
CONFIDENTIAL
U.S.S. HACKLEBACK
15 June 1945 (Cont'd)

1223(I) Asked Playmate 6 what channel 111 Tiger was on and that if
          he would get a position we would search area. Playmate 6
          informed us 111 Tiger was on the same channel that we were
          using.

1243(I) Playmate 6 informed us that the originator of the message
          from 111 Tiger was "99 Fancy" and that the crash occurred
          at 1155, bearing 100°T, distance 21 miles from reference
          point (the message was actually sent: 100 Killer 21). We
          assumed this to be incorrect. 111 Tiger also said there
          was no chance of us doing any good at the scene of the
          crash.

1300(I) Playmate 6 informed us he was departing.
1304(I) Established communications with Jukebox 11.
1412(I) Jukebox 11 departed.

          During the entire incident much confusion was experienced
          due to our proper call. The aircraft from the carriers
          used the code name of the reference point as our call
          which is in violation of Cincroa Standard Operating Pro-
          cedure SOP-2A. We attempted several times to use our
          calls as directed by change six to Subs Call Baker, but
          this only added to the confusion. We finally requested
          Playmate 6 to straighten out this call situation when he
          arrived back at the base.

16 June 1945

0914(I) Made trim dive.
0928(I) Surfaced.
1110(I) Sighted 1BM, Playmate 6, bearing 070°T.
1143(I) Playmate 6 called with the proper call and informed us
          that he had four Cowpox checked in with him. This is the
          first instance in which our correct call was used. Com-
          munications were very much improved.

1200(I) Position: Lat. 24°-20'N, Long. 125°-09'E.

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— page 62 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol
16 June 1945 (Cont'd)

1713(I) Made a trim dive.
1740(I) Surfaced.
2100(I) Sighted a light on IYAKO JIMA, bearing 030°T. Set course
          030° to close the island. It looks very much like the
          Japs are flying planes in and out of those islands at
          night. We have had at least two aircraft contacts with
          no 153 on the SD radar either late at night or very early
          in the morning. Jap airborne radar has also come in on
          the APR on two occasions. It is quite evident that it is
          not a search plane by the fact that we have never had con-
          tact on the SD or APR for any length of time.
2111(I) 10 centimeter radar interference on the SJ radar. Believed
          it is our own surface craft search radar.
2141(I) 197 meg. radar contact on the APR. Decided it was U.S.
          surface craft air search radar.
2144(I) When the range to IYAKO JIMA at 12 miles, 153 meg. radar
          on the island was now steadied on us. Not having seen the
          light again, decided to change course to the south and
          open out.

17 June 1945

          Patrolling assigned lifeguard station.
0948(I) IBM arrived in the area.
1100(I) B-17 arrived in the area.
1200(I) Position: Lat. 24°-10'N, Long. 124°-37'E.
1250(I) Made a trim dive.
1305(I) Surfaced. IBM and B-17 departed.
          Numerous sight and radar contacts with our own planes.

18 June 1945
0020(I) 153 meg. Jap airborne radar on the APR. All clear on the
          SD radar.
0930(I) IBM arrived in the area.

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— page 63 —
CONFIDENTIAL
U.S.S. HACKLEBACK
Report of Second War Patrol
18 June 1945 (Cont'd)

0937(I) Sighted a mine: Lat. 24°-22'N, Long. 125°-03'E.
1100(I) Sank mine with 20MM and 50 caliber gunfire.
1123(I) B-17 arrived in the area.
1159(I) B-17 departed.
1200(I) Position: Lat. 24°-26'N, Long. 125°-10'E.
1201(I) B-17 departed.
Numerous sight and radar contacts with our own aircraft
throughout the day.

19 June 1945

Patrol on lifeguard station.
1029(I) Rescue 7766 called us on 4475 to inform us he was
passing through.
1034(I) B-17 arrived in the area.
1157(I) B-17 departed.
1200(I) Position: Lat. 24°-13'N, Long. 124°-37'E.
1738(I) Made a trim dive.
1741(I) Surfaced.
Numerous sight and radar contacts with our own planes
throughout the day.

20 June 1945

1048(I) B-17 arrived in the area.
1155(I) B-17 departed.
1200(I) Position: Lat. 24°-15'N, Long. 125°-07'E.
1717(I) Made a trim dive.
1705(I) Surfaced.
Sighted numerous friendly aircraft throughout the day.
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— page 64 —
CONFIDENTIAL
U.S.S. HAC LEBAC - Report of Second War Patrol

21 June 1945

     Patrolling on lifeguard station.

1043(I) B-17 arrived in the area.
1100(I) PBM arrived in the area.
1200(I) Position: Lat. 24°-15'N, Long. 124°-33'E.
1203(I) B-17 departed.
1300(I) PBM departed.

     Numerous contacts with our own aircraft.

22 June 1945

0910(I) Made trim dive.
0921(I) Surfaced.
0931(I) PBY arrived in the area.
1104(I) B-17 arrived in the area.
1200(I) Position: Lat. 24°-17'N, Long. 125°-08'E.
1234(I) Heard someone call on VHF using the code name of the
     reference point as a call and about the same time we had
     emergency IFF on the SD radar. It came in very faint.
     We were finally able to make out the following message.
     Crash 20 miles East of ISHIGAKI.
1240(I) Set course 265°T and went ahead flank on four main engines.
     We were having a hard time hearing anything on the VHF so
     at
1243(I) Told them to use 4475 kcs.
1245(I) Received following information from Jukebox 11: "Pilot
     bearing 090°T from ISHIGAKI. He is in Goodyear."
1248(I) Received following message from Jukebox 11: "180°T from
     air sea reference point."
1252(I) Requested distance from reference point.

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— page 65 —
CONFIDENTIAL
U.S.S. HACKLEBACK
22 June 1945

22 June 1945 (Cont'd)

1233(I) Received following from Taxi 364: "Crash bears 245° from
         you." Changed course to 245°T.

1255(I) Sighted numerous aircraft circling on the approximate
         bearing of the crash.

1306(I) Sighted B-17 circling on bearing of the crash.

1315(I) B-17 dropped a life boat.

1340(I) Sighted lifeboat.

1344(I) Told B-17 we had survivor in sight. B-17 departed as he
         was getting low on gas.

1404(I) Lieutenant Commander C. I. SMITH, USN, came aboard. He
         was in good condition. Stripped the lifeboat dropped to
         survivor by B-17.

1420(I) Sighted PBM. PBM called us on 4475 and asked if we had
         pilot aboard. Gave name and condition of pilot to the PBM.

1436(I) CVE-87 called us on 4475. Gave CVE-87 the name and con-
         dition of pilot.

1438(I) Set course for lifeguard station.

1615(I) Received the following message from CVE-87: "Request
         information as to disposition of Lt. Comdr. Smith".

1618(I) Told CVE-87 our orders were to keep Lt. Comdr. Smith
         aboard for remainder of patrol, but would comply with any
         arrangements they wished to make for returning him.

1755(I) Received message from CVE-87 on 4475 to retain Lt. Comdr.
         Smith aboard.

23 June 1945

0915(I) Made to dive.
0925(I) Surfaced.
0925(I) PBM arrived in the area.
1200(I) Position: Lat. 24°-14'N, Long. 124°-32'E.

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— page 66 —
CONFIDENTIAL
U.S.S. HACKLEBACK SS-295
CR - Report of Second War Patrol
24 June 1945

0110(I) 170 mgs. radar on the AM. (see radar).
0741(I) Intercepted following message from Drake 135 to Rodeo 7:
"075 Juicy Floosy 42".
0743(I) Aircraft contact on the SD. No IFF. Closed to 3½ miles.
Dived.
0753(I) Surfaced. Put four main engines on propulsion and set
course 060°T for the scene of the crash.
0801(I) Called Rodeo 7 and told him we were proceeding to 075
Juicy Floosy 42 at best speed.
0803(I) We were told by Rodeo 7 not to report to the scene of the
crash as there were no survivors.
0947(I) PBY arrived in the area.
1113(I) B-17 arrived in the area.
1159(I) PBY and B-17 departed.
1200(I) Position: Lat. 24°-25'N, Long. 125°-13'E.
2100(I) 152 ms. radar contact on the AM. Probably Jap airborne
radar.

25 June 1945

1013(I) PBY arrived in the area.
1112(I) B-17 arrived in the area.
1200(I) Position: Lat. 24°-08'N, Long. 124°-36'E.
1714(I) Made trim dive.
1720(I) Surfaced.

26 June 1945

0938(I) Sighted PBY bearing 045°T, distance 10 miles.
1010(I) Made a trim dive.

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— page 67 —
CONFIDENTIAL
U.S.S. HACKLEBACK
Report of Second War Patrol
26 June 1945 (Cont'd)

1017(I) Surfaced.
1130(I) B-17 arrived in the area.
1200(I) Position: Lat. 24°-20'N, Long. 125°-12'E.
1201(I) B-17 departed.
1710(I) Sighted anti-aircraft fire on MIYAKO JIMA.
     Numerous aircraft contacts with our own planes.

27 June 1945

0907(I) PBY arrived in the area.
0952(I) Recharge 7766 called us on 4475 and informed us he was
     passing through our area.
1200(I) Position: Lat. 24°-15'N, Long. 124°-41'E.
1300(I) PBY departed.
1530(I) Sighted one PBM and four P47s.
1539(I) PBM with voice call Rodeo 8 called us on VHF using the
     code name of the reference point for our call and told us
     to standby for a possible mission.
1645(I) Received following message from Rodeo 8: "We are return-
     ing to base. Do not need your services."

28 June 1945

0955(I) PBY arrived in the area.
1000(I) First of fourteen Southbound transports called us on 4475
     to inform us they were passing through our area.
1123(I) Northbound transport planes commenced checking in, inform-
     ing us they were passing through our area.
1200(I) Position: Lat. 24°-13'N, Long. 125°-11'E.
1250(I) PBY departed.

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— page 68 —
CONFIDENTIAL
U.S.S. MACLINBACK
28 June 1945
- Report of Second War Patrol
(Cont'd)

1707(I) Made a trim dive.
1714(I) Surfaced.
2130(I) Very weak 153 meg. Jap airborne radar contact on the APR.
2150(I) Very weak 208 meg. Jap radar contact on the APR. This
 also could have been Jap airborne radar.
Numerous friendly aircraft contacts throughout the day.

29 June 1945
0946(I) PBY arrived in the area.
1140(I) Transport planes commenced checking in, informing us they
 were passing through our area.
1200(I) Position: Lat. 24°-09'N, Long. 124°-30'E.
1203(I) B-17 arrived in the area.
1254(I) Last transport plane checked in.
1304(I) PBY and B-17 departed.
2101(I) Sighted bomb flash on MIYAKO JIMA bearing 035°T, distance
 42 miles.
2116(I) 220 meg. U.S. surface craft radar contact on the APR.
Numerous friendly aircraft contacts throughout the day.

30 June 1945
0903(I) Made a trim dive.
0919(I) Surfaced.
1000(I) Sighted mine. Position: Lat. 24°-27'N, Long. 125°-13'E.
 Sank mine with 20 mm gunfire.
1012(I) Transport planes commenced checking in, informing us they
 were passing through our area.
1030(I) PBY arrived in the area.

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— page 69 —
CONFIDENTIAL
U.S.S. H.C.M.L.B.A. - Report of Second War Patrol
20 June 1945 (Cont'd)
1200(I) Position: Lat. 24°-13'N, Long. 125°-00'E.
1203(I) B-17 arrived in the area.
1640(I) Made quick dive for possible periscope contact. Ran
silent for ten minutes. All clear on the sound
gear.
1658(I) Surfaced.
1710(I) Sighted floating log with a branch sticking out of the
water. This was more than likely the periscope we dived
for.
2125(I) 204 mog. U.S. surface craft air search radar on the APR.
2325(I) Unidentified 226 mog. radar contact on the APR. This
radar was directional and was being keyed.

1 July 1945
0137(I) Sighted searchlight loom on ISHIGAKI JIMA bearing 295°T,
distance 35 miles.
0833(I) Sighted Jap life ring in the water. Picked up the life ring.
1007(I) PBY arrived in the area.
1015(I) Transport planes commenced checking in, informing us they
were passing through our area.
1141(I) B-17 arrived in the area.
1200(I) Position: Lat. 24°-01'N, Long. 124°-48'E.
2045(I) Received message from ComSubPac informing us that from
0800 to 1300(I), 2 July 1945, three flights of P-51s and
six escorting B-25s would pass through our area.
Numerous friendly aircraft contacts throughout the day.
The sea was flat calm. Sighted a great deal of debris and
numerous light brown oil slicks in the area.

2 July 1945
0805(I) Observed tremendous explosion on MIYAKO JIMA bearing 010°T,
distance 27 miles.

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— page 70 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol
2 July 1945 (Cont'd)

0813(I) Officer of the deck sighted three aircraft heading South
          at low altitude. One aircraft dropped into the water.
          Put four main engines on propulsion, set course 030°T
          for scene of crash.

0818(I) Intercepted the following message from Scrapper 301 to
          Playmate 8: "190 from the target six or seven miles; 301
          and 101 are looking for him." We were 23 miles from the
          reported position of the crash.

0833(I) Called Playmate 8 on VHF and informed him we were heading
          for the scene of the crash. Playmate said he would give
          us a call when he arrived at the scene of the crash and
          that the water was smooth enough for him to land.

0837(I) Playmate 11 called on the VHF to inform us he was at
          orbiting point.

0842(I) Intercepted the following from Rascal to Playmate 8: "We
          have sub in sight, do you know anything about it?" From
          Playmate 8 to Rascal, "Leave it alone. Forget about it."
          Then one aircraft tell another that he had us in sight
          and told him: "Let's work him over." The other plane
          came back with, "He doesn't seem to be afraid of us so
          leave him alone. We will report it when we get back to
          the base." It was impossible to get their calls as they
          were using such calls as Mac, Joe, Bill, etc.

0849(I) We landed at scene of crash. Slowed to two engines and
          set course for lifeguard station.

0902(I) Junkbox 17 arrived in the area.

0909(I) Intercepted the following message from Playmate 8 to
          Rascal: "On landing, carried away my bombay door, the
          only thing I have between myself and the outside. If
          I should get in trouble, contact Wildbeast -- he is that
          Boogle south."

0912(I) Called Playmate 8 and informed him we were standing
          by. Playmate 8 informed us he was just taking off and
          that our services would not be required.

From the messages intercepted on the VHF during this
incident, it was quite evident that the outfit making
the strike on the islands had not been informed of our
presence in the area.

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— page 71 —
CONFIDENTIAL

U.S.S. HACKLMD. - Report of Second War Patrol

2 July 1945 (Cont'd)

0933(I) Called Playmate 8 and requested that he inform Rascal
         when he arrived back at the base of our presence,
         what we were here for, and who we were.

0942(I) Intercepted the following message from Rascal 137 to
         Playmate 8: "I received the last transmission from
         Wildbeast and I will pass the information on when I
         get back."

0946(I) From Playmate 8 to Rascal 137: "He is always down
         there."

1021(I) Transport planes commenced checking in, passing
         through our area.

1045(I) Jukebox 24 arrived in the area.

1200(I) Position: Lat. 24-13N, Long. 125-02E.

1220(I) Last transport plane checked in.

1234(I) Jukebox 17 and Jukebox 24 departed.

1242(I) Playmate 11 departed.

1244(I) Made a trim dive.

1252(I) Surfaced.

3 July 1945

0945(I) Transport planes commenced passing through our area.

1022(I) Jukebox 24 arrived in the area.

1023(I) Playmate 12 arrived in the area.

1133(I) Jukebox 13 arrived in the area.

1200(I) Position: Lat. 24-05N, Long. 124-40E.

1552(I) Sighted mine. Position: Lat. 24-13N, Long. 124-54E.

1559(I) Mine exploded approximately 200 yards on the port beam
         from 20MM gunfire. There was about a five second delay
         after it was hit before it exploded. The explosion was
         violent. Fragments fell all around us after the
         explosion.

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— page 72 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

3 July(Cont'd)
1623(I) Sent serial #3.

2115(I) 199 megacycle U.S. surface craft air search radar
        contact on the APR.
2120(I) 218 megacycle U.S. surface craft air search radar
        contact on the APR.

4 July 1945
0932(I) Made a trim dive.
0945(I) Surfaced.
0958(I) Transports commenced checking in, passing through
        our area.
1005(I) Jukebox 17 arrived in the area.
1200(I) Position: Lat. 24-18N, Long. 124-58E.

5 July 1945
0917(I) Dumbos arrived in the area.
1200(I) Position: Lat. 24-10N, Long. 124-42E.
2028(I) Received message from ComSubspac telling us to depart
        station sunset 6 July and proceed to Guam for refit.

6 July 1945
0730(I) Sighted one PBM and four fighters bearing 070°T,
        distance approximately 10 miles. Emergency IFF on
        the SD radar. Went all ahead flank in the direction
        of the planes.
0736(I) PBM called on the VHF and said he was passing through
        the area.
0737(I) Asked the PBM to check his IFF and informed him his
        emergency IFF was on. Emergency IFF disappeared from
        the SD radar screen. Resumed patrolling on lifeguard
        station.
1106(I) Dumbos arrived in the area.
1147(I) Made a trim dive.

-22-

— page 73 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol
6 July 1945 (Cont'd)

1152(I) Surfaced.
1200(I) Position: Lat. 24-23N, Long. 123-12E.
1923(I) Departed area for Guam in accordance with ComSubSfac
Serial #40.
2110(I) Sent serial #4 acknowledging ComSubSfac 050836 and
time of entry into Decamp and speed of advance
in lane. (Info. to ComTaskGroup 17.7).

7 July 1945

0210(I) 105 megacycle land-based radar contact on the APR.
0239(I) Received message from ComTaskGroup 17.7 acknowledging
our serial #4.
0415(I) 176 megacycle land-based radar contact on the APR.
0615(I) Sighted Formosa, bearing 270°T, distance 60 miles.
0700(I) Sighted Kasho To bearing 228°T, distance 33 miles.
0827(I) Sighted Koto Sho bearing 212°T, distance 46 miles.
1000(I) Sighted 35 B-25's approaching Shokoto Sho.
1100(I) Sighted bomb explosions on Shokoto Sho. Several fires
were started on the island. No AA fire seen.
1103(I) Changed course to close the island.
1200(I) Position: Lat. 21-57N, Long. 121-01E.
1212(I) With Shokoto Sho bearing 270°T, range 9400 yards,
commenced bombardment with 5" gun.
1235(I) Ceased firing, having expended 73 rounds of 5". At
least three new fires were started on the island. We
were unable to see what was burning because we were firing
over a high ridge on the island into a gully or small
valley in the center of the island. No installations
were sighted. Do not know what is on this island, but
decided if it was important enough to bomb with 35 B-25's,
our shells were not wasted.
1348(I) Sighted the Batan Island group bearing 180°T, distance
30 miles.

-23-

— page 74 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

7 July 1945 (Cont'd)
1728(I) Made a trim dive.
1735(I) Surfaced.
2030(I) Transited Luzon Strait.

8 July 1945
0248(I) SJ radar interference contact.
0255(I) SJ radar contact bearing 090°T, distance 9000 yards.
          Exchanged recognition signals with U.S.S. RASHER (SS269).
1200(I) Position: Lat. 24°-42'N, Long. 126°-03'E.

9 July 1945
1200(I) Position: Lat. 20°-45'N, Long. 132°-21'E.
1436(I) Made a trim dive.
1450(I) Surfaced.

10 July 1945
1200(I) Position: Lat. 20°-44'N, Long. 134°-13'E.
1420(I) Sighted U.S. Submarine through the high periscope, bear-
          ing 080°T.
1430(I) Sighted second U.S. Submarine through the high periscope
          bearing 075°T.
1443(I) Exchanged calls with U.S.S. SPIKEFISH (SS404) and U.S.S.
          SEA POACHER (SS393).
          Numerous friendly aircraft contacts throughout the day.

11 July 1945
1019(K) Made deep dive to test depth.
1110(K) Surfaced.
1117(K) SJ radar interference bearing 102°T.

-24-

— page 75 —
CONFIDENTIAL
U.S.S. RACKUDA

Report of Second War Patrol

11 July 1945

1131(K) Exchanged calls with U.S.S. LAON (SS260) with the
         SJ radar.
1200(K) Position: Lat. 17°-31'N, Long. 143°-47'E.
1240(K) Sighted the U.S.S. LAON through the high periscope
         bearing 094°T.
1840(K) Sighted Anatahan Island bearing 085°T, distance 41 miles.
2020(K) SJ radar interference bearing 184°T.
2044(K) SJ radar contact bearing 160°T, distance 10,000 yards.
         Challenged on the SJ radar but did not receive a reply.

12 July 1945

0521(K) Rendezvoused with U.S.S. SC-671, our escort into Guam.
1000(K) Arrived Guam for refit.

-25-

— page 76 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

(C) WEATHER:
    No unusual weather conditions were encountered during the
    patrol.

(D) TIDAL INFORMATION:
    The currents in this area are greatly influenced by the tidal
    streams between Miyako Jima and Ishigaki Jima. The average set
    and drift Northeast of Ishigaki Jima was: Set 230°T, drift 1.4
    knots. The set trends more to the South as you close the island.

    Southwest of Miyako Jima the currents are weaker, averaging
    .4 knots, set 230°T. The currents 18 miles South of Miyako Jima
    are negligible.

    The last two days in the area, a set of 270°T and drift of
    one knot was experienced.

(E) NAVIGATIONAL AIDS:
    No navigational aids were observed.

(F) SHIP CONTACTS:
    None.

(G) AIRCRAFT CONTACTS:
    Enemy air activity in the area was practically non-existent.
    No enemy planes were sighted but on several occasions at night
    Jap airborne radar was detected on the APR. Seven SD radar con-
    tacts were made which did not show IFF, however, some of these
    were probably friendly planes. It is believed that the Japs were
    getting planes in and out of either Miyako or Ishigaki Islands at
    night despite the daily bombings by our carrier aircraft. This
    information was given to one of our dumbos who relayed it to his
    base.

(H) ATTACK DATA:
    Bombarded Shokoto Sho, Lat. 21°-57'N, Long. 121°-36'E. Fired
    73 rounds of 5" high capacity common ammunition immediately follow-
    ing an Army B-29 bombing raid.

(I) MINES:
    Five mines were encountered. All mines were sank by 20MM
    gunfire. One mine exploded. No mining operations were observed.

-26-

— page 77 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:

No anti-submarine activity was encountered.

(K) MAJOR DEFECTS AND DAMAGE:

On the night of 1 June, approximately one minute after sub-
merging for routine trim dive, all power was lost on the port shaft
Upon surfacing, it was discovered that there had been a large arc
across the parallel-two contactors which had burned one contactor
arm in the overload relay and opened the holding coil circuit.
This was either caused by dirty overload relay contacts or an
overload on the main motors. Thirty minutes was required to
replace a new contactor in the relay.

During the training period, a ramming noise was noticed in
the hydraulic system when the auto-bypass valve closed to charge
the accumulator. The bypass valve was removed and a new valve
with tapered seat to obtain a throttling effect when the bypass
valve closes was installed. On 20 May, the bypass valve began
cycling with the bypass valve closing only part way in the open
to close action. The accumulator stroke at this time was 11" and
had been 11" since commissioning. The stroke was shortened to 6"
and a cut taken on the valve seat. The action was then corrected
and remained so until 26 May at which time the bypass valve was
disassembled and inspected. The spring was not broken and no
binding was noted on the valve itself, but the power piston was
thought to be burred, apparently causing the valve to stick. It
was found that a rapid discharge of the accumulator would result in
the bypass valve functioning normally, but discharge with the
accumulator floating on the line even with a 6" stroke resulted
in cycling.

At Saipan, a new auto-bypass valve was installed and the
stroke adjusted to 6½". An attempt to lengthen the stroke to 11"
was not successful. The old bypass valve was found to be in good
condition but was not reinstalled. The burring of the power pis-
ton apparently had no effect, the difficulty lying in the adjust-
ment of the accumulator stroke. The plant functioned normally
from the time the bypass valve was installed for a period of
about 18 hours. At this time the valve again began to cycle. It
was decided to delay leaving Saipan for patrol to make a complete
inspection of the plant. The pilot valve and operating lever
were disassembled and inspected and were found to be normal. The
accumulator stroke was adjusted to 4½" and the plant functioned
normally and continued to do so.

It is believed, however, that the plant can be run with a
longer stroke, and an effort will be made during the refit period
to investigate the difficulty in obtaining a longer stroke.

-27-

— page 78 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

(L) RADIO:
Reception of NPN Fox was good throughout the entire patrol.
It was poorest from 0400(I) to 1200(I), during which time the
signal varied in intensity and at times almost faded out. There
was no necessity for the use of the SAF-PLAN frequencies, al-
though a continuous guard was maintained on them.

Lifeguard communications while adequate were far from satis-
factory. The flooding of the V.H.F. antenna necessitated putting
the V.H.F. on the port inboard antenna, reducing the power of the
outgoing signal and giving it a marked directivity. Communications
with the planes striking Ishagaki and Miyako was for the most part
impossible as the planes did not guard the lifeguard V.H.F. fre-
quency. We could hear them talking back and forth on other V.H.F.
channels by employing the APR receiver, but could not communicate
with them. Communications with the Dumbos was satisfactory on
their assigned frequencies; however, there was an obvious need for
a better briefing of both the Dumbo and striking force pilots. We
have been called to every thing from "HACKLEBACK" to the reference
point code word. One striking force flight was completely ignorant
of our presence in the area and might have forced us down had not
the Dumbo called them off. Up to date of our departure from the
area the Dumbo pilots had not been informed either of the change
in reference point or of the change in the voice call system which
had taken place three days earlier.

With the exception of the flooding of the V.H.F. antenna from
an as yet undetermined cause, no material failures were encountered.
Throughout transmissions to ComSubSrac, NPN did an excellent job.
They were always prompt in answering up and seemed to have had
little difficulty in copying through a moderate amount of enemy
interference. The area frequency schedule was copied and decoded
faithfully but at no time was there any transmission directed to us.

(M) RADAR:
The SD radar was in almost constant use. The alteration of
the SD-4 on board to use the persistent type scope found in the
SD-5 made it possible to key the SD for as little as one second.
This alteration, rather than decreasing the sensitivity as at
first feared, resulted in better performance for the SD during
this patrol than during the first patrol.

The SJ radar as before turned in a good performance. Ranges
up to 80,000 yards on Ishigaki were common. With the exception of
the usual tube failures the only casualty encountered was the
failure of the SJ transmitter clutch assembly which was remedied
on board.

-28-

— page 79 —
-The provided image is a page from a WWII submarine patrol report for the U.S.S. HACKLEBACK. I will transcribe the text, distinguishing between typed and handwritten content, preserving formatting, and noting any unclear sections.

CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

(N) SONAR GEAR AND SOUND CONDITIONS:
The sonar gear functioned well throughout the patrol. Sound
conditions were good with low background noise and isothermal water
down to 100 feet.

(O) DENSITY LAYERS:
Seven S.B.T. cards were taken and are being forwarded to
the Vice Chief of Naval Operations. No density layers were en-
countered in the area.

(P) HEALTH, FOOD, AND HABITABILITY:
The health of the crew was excellent.
The food was good and well prepared.

(Q) PERSONNEL:
Number of men on board during patrol

— page 80 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of Second War Patrol

(U) COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES:

 1. Enemy radar of the following characteristics were en-
countered using APR-1, SPA-1, TN-2, and TN-3:

NO. TIME/DATE MCS PRF PULSE WIDTH REMARKS

1. 1015(I) 150-160 500 8--15 Land based.
   6/7/45
2. 1017(I) 150 200-500 10-20 Land based.
   6/7/45
3. 1745(I) 97-101 350-750 50-75 Land based.
   6/7/45
4. 0510(I) 105-108 500 15-30 Land based.
   6/8/45
5. 0600(I) 165 --- 2 Land based.
   6/8/45
6. 1840(I) 85 500 45 Land based.
   6/8/45
7. 0020(I) 154 1000 7.5 Air borne.
   6/18/45
8. 0052(I) 178 220 8 Air borne.
   6/23/45
9. 2100(I) 152 1000 10 Air borne.
   6/24/45
10. 2200(I) 201 450 Unidentified
    6/24/45

2. JAMMING: Noise jamming was picked up by the APR and
   seemed to concentrate on 98 Mc and 106 Mc. The side band of 106 Mc
   jammed our SD. Assumed jammers to be friendly.

3. COMMUNICATION COUNTERMEASURES:

   1. No enemy signals were intercepted.
   2. Only type of enemy jamming encountered was random
      keying on 4235 series.
   3. No enemy deception was encountered.

4. SONAR COUNTERMEASURES:

   No sonar countermeasures were encountered.

..30.

— page 81 —
CONFIDENTIAL

U.S.S. HACKLEBACK - Report of Second War Patrol

(V) REMARKS:

The area in the vicinity of the Saki Shima Gunto is devoid
of any enemy activity and offers little for a submarine as a life
guard station. Very little information was available to us other
than routine transport flight schedules furnished by ComSubPac.
The islands were bombed two or three times daily by carrier based
aircraft, but we had no knowledge of their schedule, target, calls,
etc. Any information received of interest to us was intercepted
on 4475 Kcs and our presence was usually ignored until we were
called to get the position of a downed plane. Only two oppor-
tunities were offered to rescue downed personnel. The first time
we rescued a fighter pilot and the second time we lost a race with
a dumbo to pick up the crew of a TBM. As a result we almost had
to pick up the dumbo crew. Several crashes occurred from which
there were no survivors.

Absolutely no circuit discipline was maintained on the life
guard frequency, 4475 Kcs. It was employed largely for routine
flight operations controlled from Okinawa. Interruptions in
transmissions were the rule rather than the exception.

Several times transport planes requested permission to pass
through the area which we readily granted though the reason for
the request remains a mystery. They were the only outfit however
who understood our call system.

After spending three weeks in the area we intercepted a con-
versation on the VHF between two planes trying to decide whether
they should strafe us or not. Their final decision was to report
us on their return to their base.

With the large amount of friendly air activity in the area
we were restricted entirely to our lifeguard station and as a
result, area coverage was very limited.

It is very gratifying to have rescued a fighter pilot and
our only regret is that we could not have done more.

-31-

— page 82 —
SUBMARINE DIVISION TWO HUNDRED ONE.
Fleet Post Office,
San Francisco, California.
13 July, 1945

FB5-201/A16-3
Serial (028)
CONFIDENTIAL
FIRST ENDORSEMENT to
CO HACKLEBACK Report of
2nd War Patrol dated 7/12/45.

From: The Commander Submarine Division TWO HUNDRED ONE.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron TWENTY.
(2) The Commander Submarine Force, U.S. Pacific Fleet,
Administration.
(3) The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of Second War Patrol.

1. The second war patrol of the HACKLEBACK was conducted in the
vicinity of SAKI SHIMA GUNTO and the primary mission was life guard duty.
This patrol was of fifty one (51) days duration, twenty nine (29) of which
were spent in the assigned area.

2. On 22 June, Lieutenant Commander C.P. SMITH, USN, was picked
up with the aid of a P-17.

3. SHOKOTO SHO was bombarded by HACKLEBACK on 7 July, an hour
after this Island was hit by 35 B-25's. Fires were started but exact damage
unobserved.

4. No enemy contacts were made; five mines were destroyed.

5. Attention is called to conversation overheard between Rascal
and Playmate 8 on 2 July. It is suggested that our aviators be reminded of
the meaning of a Joint Zone as defined in SOP-1.

6. This ship returned clean and shipshape. Her material condition
is excellent. ST Radar is being installed this refit and it is suggested
that she be given an area for her next patrol in which she will have opportunity
to fire torpedoes, none have been fired to date.

7. The Commanding Officer, officers and crew are congratulated on
completion of this patrol.

R. F. MCMAHON.

— page 83 —
F05-20/.16-3
Serial: 0164

C-O-M-M-A-N-D-E-R-I-N-C-H-I-E-F-L

From: The Commander Submarine Squadron TWENTY.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Force, Pacific Fleet,
Administration.
(2) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of Second
War Patrol.

1. Forwarded, concurring in the remarks of Commander
Submarine Division TWO HUNDRED ONE.

2. The Commander Submarine Squadron TWENTY congratulates
the Commanding Officer, officers and men of the U.S.S. HACKLEBACK
upon their successful rescue of Lieutenant Commander C.P. SMITH,
U.S. Navy, and hopes they have the opportunity on next patrol of
combining successful torpedo shooting with any life guard duties
that may be assigned.

L. S. RAMS.

SUBMARINE SQUADRON TWENTY
Care of Fleet Post Office,
San Francisco, California.
15 July 1945.

— page 84 —
FF12-13(A)/A16-3(18) SUBMARINE FORCE, PACIFIC FLEET
Serial 01852 Care of Fleet Post Office,
San Francisco, California,
25 July 1945.

CONFIDENTIAL
THIRD ENDORSEMENT to NOTE: THIS REPORT WILL BE
HACKLEBACK Report of DESTROYED PRIOR TO
Second War Patrol. ENTERING PATROL AREA.

COMSUBSPAC PATROL REPORT NO. 827
U.S.S. HACKLEBACK - SECOND WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To : The Commander in Chief, United States Fleet.
Via : The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of Second War Patrol
(21 May to 12 July 1945).

1. The second war patrol of the HACKLEBACK, under the command of
Lieutenant Commander F. E. Janney, U. S. Navy, was conducted in the vicinity of
Saki Shima Gunto with a primary mission of lifeguard duty.

2. The alert and thorough performance of lifeguard duties by the
HACKLEBACK during this patrol was rewarded by her having the honor of rescuing
one Naval aviator. The HACKLEBACK was afforded no opportunity for torpedo attack,
but carried out a well conducted gun bombardment of Shokoto Sho.

3. Award of Submarine Combat Insignia for this patrol is authorized.

4. The Commander Submarine Force, Pacific Fleet, congratulates the
commanding officer, officers, and crew of the HACKLEBACK for this well conducted,
successful patrol.

DISTRIBUTION: MERRILL COMSTOCK,
(Complete Reports) Deputy.
Cominch (7)
CNO (5)
Cincpac (6)
JICPOA (1)
AdJICPOA (1)
Comservpac (1)
Cinclant (1)
Comsubslnt (3)
S/M School, TL (2)
CO, S/M Base, PH (1)
Comsopac (2)
Consovespac (1) ComSubOpTrnGrBalboa (Airmail) (5)
Comsubs7thFlt (Fwd Echelon) (2) Substrainpac (2)
Comsubs7thFlt (Rear Echelon) (2) All Submarines, Pacific (1)
Comnorpac (1) [SIGNATURE: H. Quiller]
Comsubspac (3) for
Comsubspac&Cond (40)
SUBAD, MI (2) E. L. HYNES, 2nd,
ComsubspacSubordcom (3) Flag Secretary.
All Squadron and Div.
Commanders, Pacific (2)

— page 85 —
[HANDWRITTEN: 1ST COPY]

SS295/A16-3
Serial (30)

U.S.S. HACKLEBACK (SS295)
Care of Fleet Post Office
San Francisco, California.
23 August 1945.

[STAMP: DECLASSIFIED]
COPY

From: The Commanding Officer:
To : The Commander in Chief, United States Fleet.
Via : (1) Commander Submarine Division TWO FORTY ONE.
(2) Commander Submarine Squadron TWENTY FOUR.
(3) Commander Submarine Force, Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295), Report of War Patrol
Number THREE.

Enclosure: (A) Subject Report.

1. Enclosure (A), covering the start of the Third
war patrol of this vessel during the period 14 to 22 August 1945,
is forwarded herewith.

[SIGNATURE: F. E. Janney (handwritten)]
F. E. JANNEY.

[STAMP: DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C]
BY [HANDWRITTEN: OP-09C] DATE [HANDWRITTEN: 5/30/22]

[STAMP: DECLASSIFIED]

— page 86 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of THIRD War Patrol

(A) PROLOGUE:
    Arrived Apra Harbor, Guam, Marianas Islands, 12 July 1945,
from Second War Patrol, and commenced normal refit by the U.S.S.
PROTEUS (AS19) and Submarine Division TWO HUNDRED ONE Relief Crew.
An ST radar was installed necessitating a one week extension of
the refit period. Major items accomplished: ST radar was install-
ed; the torpedo detector modification of the WCA-2 equipment was
installed with the exception of the drydock work on the sound head;
the MK-6 low frequency receiver was modified by running a lead from the bridge
directly to the MK-6 low frequency receiver in the radio room. The
elimination of a portable aircraft receiver and power pack,
the RU-CF-IM power unit; the SCR-610 frequency modulated voice
receiver and transmitter was installed. Completed refit 14 August
1945. The refit was excellent and the ship was turned over spot-
lessly clean. Conducted training from 6 to 11 August. Fired five
exercise torpedoes and two gun practices. One torpedo was fired
on the surface with a rudder clamp for training in the use of
limitations of torpedo detection equipment. Readiness for sea
date 14 August 1945.

    During the refit and training period, Lieutenant James R.
Swanbeck, USN, was detached and Lieutenant (jg) Kenneth N. Bundy,
USNR, reported aboard for duty.

(B) NARRATIVE:
    List of Officers and Chief Petty Officers attached:

OFFICERS
| OFFICERS             | RANK         | NO. OF PREV. PATROLS |
||||
| Frederick B. JANNEY  | Comdr., USN  | 12                  |
| Hilbert J. CROSTHWAITE | Lieut., USNR | 10                  |
| Walter B. GRIFFITH   | Lieut., USNR | 3                   |
| Jack W. SMALLING     | Lieut., USNR | 3                   |
| John W. GILBERT      | Lieut., USNR | 2                   |
| Robert B. BROWN      | Lt(jg), USN  | 7                   |
| James E. MC CAULEY   | Lt(jg), USN  | 2                   |
| Robert P. SMITH      | Lt(jg), USN  | 2                   |
| Kenneth N. BUNDY     | Lt(jg) USNR  | 0                   |
| David H. PAUL        | Ensign, USN  | 2                   |

CHIEF PETTY OFFICERS
|                      |              |                     |
||||
| MASON, Glen H.       | CTM, USN     | 10                  |
| TANNER, Claude W.    | CHMM, USN    | 10                  |
| JESKE, Harvey A.     | CMOMM(AA), USN | 8                   |
| FICK, Henry (n)      | CQM, USN     | 6                   |
| BISHOP, Herbert      | CRM(AA), USN | 6                   |
| ARTYMOWICZ, Stephen (n)| CEM, USN     | 3                   |
| HAHN, Bernard S.     | CMOMM, USN   | 3                   |

-1-

— page 87 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of THIRD War Patrol

14 August 1945

1500(K) Underway for patrol in accordance with ComSubSrac
          Operation Order No. 200-45 of 13 August 1945.

1558(K) Received "Flash" - unofficial report "Tokyo accepts".

1840(K) Escort departed.

1856(K) Made trim dive.

1903(K) Surfaced.

15 August 1945

0035(K) SJ radar interference bearing 320°T.

0310(K) Exchanged recognition signals with U.S.S. MARO (SS376)
          and U.S.S. SCABBARD FISH (SS397).

0738(K) Made a trim dive.

0750(K) Surfaced.

1107(K) Received ComSubSrac Serial #32.

1200(K) Position: Lat. 17°-12'N, Long. 143°-53'E.

1531(I) Made training dive.

1540(I) Surfaced.

16 August 1945

0848(I) Made trim dive.

0938(I) Surfaced.

1118(I) Received message from ComSubSrac addressed to all
          submarines to acknowledge his serial #32.

1200(I) Position: Lat. 20°-40'N, Long. 140°-06'E.

1400(I) Sent serial #1 acknowledging ComSubSrac serial #32.

1420(I) Received orders from ComSubSrac to reverse course and
          proceed to Midway.

1615(I) Sent serial #2 acknowledging ComSubSrac 160325 giving our
          position and speed of advance through joint zones.

-2-

— page 88 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of THIRD War Patrol.

                     17 August 1945
0715(I) Made trim dive.
0726(I) Surfaced.
1055(I) Sighted ships mast on the horizon bearing 117°T, avoided.
1123(I) Sighted an escort carrier and two destroyers bearing
         076°T, avoided.
1200(I) Position: Lat. 17°-45'N, Long. 143°-30'E.
1344(I) SJ interference bearing 102°T.
1350(I) SJ radar contact bearing 102°T, range 5100 yards.
2210(K) Sighted ALAMAGAN Island bearing 061°T, distance 27 miles.
2215(K) Sighted GUGUAN Island bearing 133°T, distance 26 miles.

                     18 August 1945
1200(K) Position: Lat. 17°-59'N, Long. 149°-14.5'E.
1259(K) Made quick dive.
1309(K) Surfaced.

                     19 August 1945
1200(K) Position: Lat. 18°-59'N, Long. 155°-52'E.
1344(K) Sighted U.S. Submarine through the high periscope,
         bearing 079°T.
1400(K) Communicated with the U.S.S. DIABLO (SS479) over the
         SCR-610.

                     20 August 1945
1015(L) Made trim dive.
1029(L) Surfaced.
1200(L) Position: Lat. 20°-21'N, Long. 169°-00'E.

                               -3-

— page 89 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report Of THIRD War Patrol

21 August 1945

1200(L) Position: Lat. 22°-34'N, Long. 162°-00'E.
2145(L) Sent serial #3, rendezvous message to ComTaskGroup 17.5.

22 August 1945

0040(M) Received a "Roger" for our serial #3 on NPM Fox from
     ComSubS.acAdCom.
1200(M) Position: Lat. 25°-13'N, Long. 175°-09'E.
1322(M) Made trim dive.
1330(M) Surfaced.

22 August 1945

0130(Y) SJ radar interference bearing 090°T.
0155(Y) SJ radar contact bearing 156°T, range 9,000 yards.
0200(Y) Exchanged recognition signals with U.S.S. BARB (SS220).
1040(Y) Sent serial #4, second rendezvous message. Did not receive
     an acknowledgement from ComTaskGroup 17.5 for first rendez-
     vous message.
1200(Y) Position: Lat. 28°-00'N, Long. 178°-05'W.
1328(Y) Received a "Roger" for serial #4 on NPM Fox from ComSubS.ac
     AdCom.
1505(Y) Arrived Midway.

-4-

— page 90 —
CONFIDENTIAL
U.S.S. HACKLEBACK - Report of THIRD War Patrol

(C) WEATHER: No remarks

(D) TIDAL INFORMATION: No remarks

(E) NAVIGATIONAL AIDS: None

(F) SHIP CONTACTS: None

(G) AIRCRAFT CONTACTS: None

(H) ATTACK DATA: None

(I) MINES: None encountered.

(J) ANTISUBMARINE MEASURES AND EVASION TACTICS: None

(K) MAJOR DEFECTS AND DAMAGE: None

(L) RADIO: No remarks

(M) RADAR: No remarks

(N) SOUND CONDITIONS: Not observed.

(O) DENSITY LAYERS: None encountered.

(P) HEALTH, FOOD, AND HABITABILITY: The health of the crew
was good. The food was good and well prepared.

(Q) PERSONNEL:
Number of men detached after previous patrol 12
Number of men on board during patrol 82
Number of men qualified at start of patrol 63
Number of men qualified at end of patrol 66
Number of unqualified men making their first patrol 9

(R) MILES STEAMED - FUEL USED:
Total miles steamed 3615 miles. Fuel used 55,190 Gallons.

(S) DURATION:
Underway: 9 days Days submerged 0

(T) FACTORS OF ENDURANCE REMAINING:
TORPEDOES FUEL PROVISIONS PERSONNEL
15 62,100 Gal. 45 days 45 days.

(U) COMMUNICATIONS, RADAR AND SONAR COUNTER MEASURES: None

-5-

— page 91 —
SUBMARINE DIVISION TWO FORTY ONE

FB5-241/A16-3/
Serial # 029

C-O-N-F-I-D-E-N-T-I-A-L

FIRST ENDORSEMENT to
USS HACKLEBACK Report
of War Patrol No. 3,
dated 23 August 1945.

Care of Fleet Post Office;
San Francisco, California,
25 August 1945.

From: The Commander Submarine Division TWO FORTY ONE.
To : The Commander in Chief, United States Fleet.
Via : The Commander Submarine Squadron TWENTY FOUR.
The Commander Submarine Force, Pacific Fleet,
Administration.
The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) Report of War Patrol
Number THREE.

1. Forwarded for completion of the war record of the
U.S.S. HACKLEBACK (SS295).

[SIGNATURE: J. W. DAVIS.]
Acting.

— page 92 —
FC5-24/A16-3
Serial: (0160)
C-O-N-F-I-D-E-N-T-I-A-L

SECOND ENDORSEMENT To
USS HACKLEBACK (SS295)
Report of THIRD War Patrol.

From: The Commander Submarine Squadron TWENTY-FOUR.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Force, Pacific Fleet.
(2) The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of War Patrol
Number THREE.

1. Forwarded.

2. HACKLEBACK was recalled prior to reaching the area
because offensive operations had ceased.

SUBMARINE SQUADRON TWENTY-FOUR
11/wd
Care of Fleet Post Office,
San Francisco, California,
26 August 1945.

[SIGNATURE: F. J. Fenno]
F. J. FENNO.

— page 93 —
FF12-10(A)/A16-3(13)
Serial 02320
CONFIDENTIAL
T.I.D. L.D.O. S.H.I.T. to
HACKLEBACK REPORT of
Third War Patrol.

[STAMP: EXTRA - ORIGINAL]
[STAMP: SORG. MICRO]
[STAMP: PHOTO-LAB OP-16]
[STAMP: RETURN TO F-4253]

SUBMARINE FORCE, PACIFIC FLEET

Care of Fleet Post Office,
San Francisco, California,
17 Sept. 1945

NOTE: THIS REPORT IS
DESTROYED PRIOR TO
ENTERING PORT.

COMSUBPAC F.L.T. OL REPORT NO. 888
U.S.S. HACKLEBACK - THIRD WAR PATROL

From: The Commander Submarine Force, Pacific Fleet.
To : The Commander in Chief, United States Fleet.
Via : The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. HACKLEBACK (SS295) - Report of Third War Patrol (10
August to 22 August 1945).

1. The U.S.S. HACKLEBACK, under the command of Commander F. E.
Janney, U.S. Navy, departed for her third war patrol but did not reach her assign-
ed patrol area prior to the time hostilities with Japan were terminated.

2. This report is forwarded in order to complete the war record of
the U.S.S. HACKLEBACK.

DISTRIBUTION:
(Complete Reports)
Cominch (7)
CNO (5)
Cincpac (6)
JICPOA (1)
ADICPOA (1)
Comservpac (1)
Cinclant (1)
Consubslant (8)
S/M School, FL (2)
CO, S/M Base, PH (1)
Comsopac (2)
Consovespac (1)
Consubs7thFlt (Fwd Echelon) (2)
Consubs7thFlt (Rear Echelon) (2)
Comnorpac (1)
Consubspac (3)
ConsubspremCond (20)
SUMLD, MI (2)
All Squadron and Division Commanders, Pacific (2)
ComSubOpTrGrDelboa (5)
SubStrainPac (2)
All Submarines, Pacific (1)

[SIGNATURE: G. C. Crawford]
G. C. CRAWFORD,
Chief of Staff.

[HANDWRITTEN: G. L. HINES, 2nd.,]
[HANDWRITTEN: Flag Secretary.]

10 0446

— page 94 —
April 12, 1946.

MEMORANDUM BY OP-23-E-2.

Letter (FF12-10(A)/A16-3(6), serial 36 89 of 18 October 1945 from
The Commander Submarine Force, Pacific Fleet, Administration, Subject:
Patrol Reports, cancellation of, --- ordered that this War Patrol Report
be destroyed by burning, stating that no further reference will be made
of it, inasmuch as the submarines either did not reach their assigned
areas, were en route to a refueling station or were en route toward
patrol station for too short a time.

However, the attached report has not been destroyed and is
retained for historical purposes only.
J. W. McElroy.
[SIGNATURE: Dmac (]

— page 95 —
[HANDWRITTEN: # 7]
END OF REEL
JOB NO. [HANDWRITTEN: F.108]
[HANDWRITTEN: AR 127 - 78]

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THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[SEAL: DEPARTMENT OF DEFENSE, UNITED STATES OF AMERICA, with eagle]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION