In early 1915, the British Admiralty selected the US Electric Launch Company (Elco) for the production of 50 Motor Launches for anti-submarine work, British industry being at maximum capacity.

481 YMS-1-class minesweeper (270t, wooden hull).predecessor design to the Admirable class.95 Auk-class minesweeper (890t, steel hull).equipped with substantial anti-submarine capabilities and used as escorts.used in similar role as the submarine chasers.68 PCE-842-class patrol craft (850t, steel hull).343 PC-461-class submarine chaser (450t, steel hull).438 SC-497-class submarine chaser (98t, wooden hull).Also in World War II, larger 173-foot (53 m) PC-461-class submarine chasers used the PC hull classification symbol (for Patrol, Coastal). The similar-sized SC-497-class was built for World War II. They also carried machine guns and anti-aircraft guns. The small 110-foot (34 m) SC-1-class submarine chasers of the design used in World War I carried the hull designator SC (for Submarine Chaser). Navy submarine chasers were designed specifically to destroy German submarines in World War I, and Japanese and German submarines in World War II.

Many of the American submarine chasers used in World War I found their way to Allied nations by way of Lend-Lease in World War II.

Anti-submarine warfare ship type USS PC-815, a US subchaser that served in World War IIĪ submarine chaser or subchaser is a small naval vessel that is specifically intended for anti-submarine warfare.

Us navy world war 2