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USS APc-21
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Name: USS APc-21
Builder: Hodgdon Brothers, Goudy and Stevens, East Boothbay, Maine
Laid down: 24 May 1942, as Coastal Minesweeper AMc-173
Launched: 2 September 1942
Commissioned: 27 February 1943, as APc-21
Fate: Sunk, 17 December 1943
General characteristics
Class & type: APc-1 class small coastal transport vessel
Displacement: 100 long tons (102 t) light
234 long tons (238 t) full load
Length: 103 ft (31 m)
Beam: 21 ft 3 in (6.48 m)
Draft: 9 ft 3 in (2.82 m)
Propulsion: 1 × 400 shp (298 kW) Atlas 6HM2124 diesel engine
1 × shaft
Speed: 10 knots (19 km/h; 12 mph)
Complement: 25 (3 officers, 22 enlisted)
Armament: • 4 × single 20 mm AA gun mounts
Service record
Part of: Amphibious Force Seventh Fleet
Operations: Battle of Arawe

USS APc-21 was a United States Navy APc-1-class small coastal transport vessel in World War II. Laid down on 24 May 1942 as Coastal Minesweeper AMc-173 at Hodgdon Brothers, Goudy and Stevens, East Boothbay, Maine, she was launched on 2 September 1942 and commissioned as APc-21 on 27 February 1943.[1]

She sailed from Maine to Brisbane, Australia and served with the Seventh Fleet Amphibious Force in the South West Pacific Area conducting operations off the coast of New Guinea. She was participating in the landings during the battle of Arawe when struck by a bomb from an enemy air attack off Arawe, New Britain on 17 December 1943 and sank within four minutes.[1]


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