Patrol torpedo boat PT-20
PT-20 was the first of the United States Navy that served during World War II. History. PT-20 was commissioned by the United States Navy and laid down on 14 October 1940 at the Elco Works of the Electric Launch Company (now Electric Boat Company) at their Bayonne, New Jersey shipyard; launched on 14 Mar 1941; and completed on 9 June 1941. On 20 June 1941, she was commissioned and attached to Motor Torpedo Boat Squadron Two (MTBRON 2) under the command of Lt. Comdr. Earl S. Caldwell and assigned to patrol the Panama Canal Zone. On  13 August 1941, she was transferred to Motor Torpedo Boat Squadron One (MTBRON 1) under the command of Lt. William C. Specht and assigned to Pearl Harbor. During the attack on Pearl Harbor, "PT-20" was moored at berth S-13 awaiting loading on the replenishment oiler "USS Ramapo (AO-12)" for MTBRON 1's assignment to the Philippines. All 12 boats of the squadron fired on the attacking Japanese aircraft with one, "PT-23", credited with shooting down two Nakajima B5N "Kate" torpedo bombers. In May 1942, the squadron was reassigned to Lt. Clinton McKellar Jr. and tasked with the defense of Midway  Island being led by Marine Corps Colonel Harold D. Shannon. The squadron made the 1,385 mile trip under their own power, then the longest made by PT boats to date refueling at Necker Island, French Frigate Shoals, and Lisianski Island. 11 of the 12 PT boats of MTBRON 1 made it to Midway ("PT-23" had broken a crankshaft en route and was forced to return to Pearl Harbor). "PT-20" along with "PT-21", "PT-22", "PT-24", "PT-25", "PT-26", "PT-27", "PT-28", "PT-42" were assigned to Midway Island while "PT-29" and "PT-30" were assigned to nearby Kure Atoll (55 miles west). During the Battle  of Midway, they were tasked with providing anti-aircraft support ("PT-21" and "PT-22" were credited with downing a Mitsubishi A6M "Zero" fighter), patrolling the perimeter of the island, and the rescuing of downed pilots. After the battle, the squadron was sent to attack the remainder of the Japanese task force but was unable to locate the target. On 15 July 1942, the squadron returned to Pearl Harbor and then was divided: "PT-21", "PT-23", "PT-25", and "PT-26" (along with motor torpedo boat tender "") were deployed to Palmyra Atoll; "PT-22", "PT-24", "PT-27", and "PT-28" were deployed to Adak Island in the  Aleutians; while "PT-20", "PT-29", "PT-30", and "PT-42" remained at Pearl Harbor. On 22 December 1944, PT-20 was struck from the Navy list due to obsolescence. Her fate is unknown.