History
United States
Name	USS PC-457
Builder	Robert Jacob Shipyard, City Island, New York
Launched	1939
Acquired	1940
Commissioned	1941
Fate	Sunk in collision, 14 August 1941
General characteristics
Type	Submarine chaser
Displacement	125 long tons (127 t)
Length	106 ft 9 in (32.54 m)
Beam	23 ft (7.0 m)
Propulsion	Supercharged diesel engines, two shafts

USS PC-457 was a submarine chaser of the United States Navy before World War II.

PC-457 was built in 1939 as the yacht Trouper by Robert Jacob Shipyard of City Island, New York for C. A. Tilt of Chicago, IL, the president of the Diamond T Motor Company.

She was acquired by the US Navy in 1940 due to the Navy's rapidly rising demand for patrol craft as the war in Europe expanded. She was commissioned in 1941.

On 14 August 1941 she was sunk in a collision near San Juan, Puerto Rico with freighter Norluna ( United States). "Official Chronology of the US Navy in WWII". Ibiblio. Retrieved 5 March 2014.

• Photo gallery of USS PC-457 at NavSource Naval History
• "Official Chronology of the US Navy in WWII". Ibiblio. Retrieved 5 March 2014.

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