PGM-9-class motor gunboat

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USS PGM-17-gunboat.jpg
USS PGM-17
Class overview
Operators:
Preceded by: PGM-1 class
Succeeded by: PGM-39 class
Built: 1943-1945
Planned: 24
Completed: 24
General characteristics
Type: Patrol gunboat, motor (PGM)
Displacement: 450 tons
Length: 173 ft 8 in (52.93 m)
Beam: 23 ft (7.0 m)
Draft: 10 ft 10 in (3.30 m)
Propulsion: 2 x 1,440 bhp (1,070 kW) General Motors 16-278A diesel engines
Speed: 20.2 knots (37.4 km/h; 23.2 mph)
Complement: 65
Armament:

The PGM-9-class motor gunboats were a class of 24 gunboats converted for the United States Navy from 1944-1945, succeeding the PGM-1-class motor gunboats. All 24 PGM-9s were converted from PC-461-class submarine chasers while still under construction. The PGM-9s were created to support PT boats in the Pacific, but were too slow to keep up, and were shifted to support minesweeping ships instead.