- References
{{Infobox Ship Image| Ship image= | Ship caption=
}}{{Infobox Ship Career | Hide header= | Ship country= | 1941}} | Ship name=USS PC-457 | Ship namesake= | Ship ordered= | Ship builder=Robert Jacob and Sons, City Island, New York | Ship laid down= | Ship launched=1939 | Ship sponsor= | Ship christened= | Ship completed= | Ship acquired=1940 | Ship commissioned=1941 | Ship decommissioned= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship refit= | Ship struck= | Ship reinstated= | Ship homeport= | Ship motto= | Ship nickname= | Ship honors= | Ship fate=Sunk in collision, 14 August 1941 | Ship status= | Ship notes=
}}{{Infobox Ship Characteristics | Hide header= | Header caption= | Ship type= Submarine chaser | 125|LT|t|0|lk=in|abbr=on}} | 106|ft|9|in|m|abbr=on}} | 23|ft|m|abbr=on}} | Ship draft= | Ship depth= | Ship hold depth= | Ship propulsion=Supercharged diesel engines, two shafts | Ship speed= | Ship complement= | Ship armament= | Ship armor= | Ship notes=
}} | 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 and Sons 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 {{SS|Norluna||2}} ({{flag|United States|1912}}). {{cite web |url=http://www.ibiblio.org/hyperwar/USN/USN-Chron/USN-Chron-1943.html |title=Official Chronology of the US Navy in WWII |publisher=Ibiblio |accessdate=5 March 2014}} References - {{navsource|12/010457|USS PC-457}}
- {{cite web |url=http://www.ibiblio.org/hyperwar/USN/USN-Chron/USN-Chron-1943.html |title=Official Chronology of the US Navy in WWII |publisher=Ibiblio |accessdate=5 March 2014}}
{{August 1941 shipwrecks}}{{DEFAULTSORT:PC-0457}}{{US-mil-ship-stub}} 4 : Submarine chasers of the United States Navy|Ships sunk in collisions|1939 ships|Maritime incidents in August 1941 |