SC-497-class submarine chaser
|Preceded by:||Protoytpe submarine chaser USS SC-453|
|Succeeded by:||SC-1466 class|
|Length:||110 ft 10 in (34 m)|
|Beam:||17 ft 11.5 in (5 m)|
|Draft:||10 ft 10 in (3 m)|
|Speed:||15.6 or 21 knots (28.9 or 38.9 km/h; 18.0 or 24.2 mph)|
|Complement:||3 officers, 25 enlisted|
|Armament:||Varies over time|
The SC-497-class submarine chasers were a class of 438 submarine chasers built primarily for the United States Navy from 1941-1944. The SC-497s were based on the experimental submarine chaser, USS SC-453. Production began in 1941 and continued until they were succeeded by the SC-1466-class submarine chaser in 1944.
The SC-497s were off-shore patrol and anti-submarine warfare vessels. Seventy of the SC-497s were converted into patrol control crafts (SCC), 18 were converted into coastal minesweepers (AMC), and 8 were converted into patrol gunboats, motor (PGM).
Despite the large number of SC-497s, none are credited with destroying an enemy ship. (USS SC-669 is sometimes incorrectly credited with sinking the Japanese submarine RO-107 on 29 May 1943, but RO-107 was still active on 6 July 1943.)
During World War II, 142 SC-497-class submarine chasers were lent to allies of the United States as part of the Lend-Lease program. Seventy-eight were sent to the Soviet Union, 50 to France, 8 to Brazil, 3 to Norway, and 3 to Mexico. The three Norwegian examples served with distinction on the Shetland bus service, running agents, refugees and weapons past the German blockade between occupied Norway and Britain.
- Information on WWII SCs, retrieved 21 March 2009
- Submarine chasers: SC-497 class, retrieved 21 March 2009
- HIJMS Submarine RO-107: Tabular Record of Movement, retrieved 21 March 2009