USS Fort Mandan

History
United States
Name	USS Fort Mandan
Namesake	Fort Mandan in North Dakota
Laid down	2 January 1945
Launched	2 June 1945
Commissioned	31 October 1945
Decommissioned	23 January 1971
Identification	LSD-21
Fate	Transferred to Greece, 23 January 1971
Stricken	8 February 1980
Motto	Victoriam Portamus
Nickname(s)	"The Fort"
Greece
Name	Nafkratousa
Acquired	23 January 1971
Decommissioned	29 February 2000
Identification	L153
Fate	Sold for scrap, November 2001
General characteristics
Displacement	7,930 tons (loaded), 4,032 tons (light draft)
Length	457 ft 9 in (139.52 m), overall
Beam	72 ft 2 in (22.00 m)
Draft	8 ft 2.5 in (2.502 m) fwd, 10 ft 0.5 in (3.061 m) aft (light) 15 ft 5.5 in (4.712 m) fwd, 16 ft 2 in (4.93 m) aft (loaded)
Propulsion	2 Babcock & Wilcox boilers 2 geared turbines 2 propeller shafts - each shaft 3,700 hp (2,800 kW) @ 240 rpm; 7,400 shp (5,500 kW) total 2 11 ft 9 in (3.58 m) diameter, 9 ft 9 in (2.97 m) pitch propellers
Speed	17 knots (31 km/h) (31 km/h)
Endurance	8,000 nautical miles @ 15 knots (15,000 km @ 28 km/h)
Boats & landing craft carried	One of the following: 3 × LCT (Mk V or VI)   each w/ 5 medium tanks 2 × LCT (Mk III or IV)   each w/ 12 medium tanks 14 × LCM (Mk III)   each w/ 1 medium tank 1,500 long tons (1,500 t) cargo 47 × DUKW 41 × LVT Any combination of landing vehicles and landing craft up to capacity
Capacity	22 officers, 218 men
Complement	17 officers, 237 men (ship); 6 officers, 30 men (landing craft)
Armament	1 × 5 in / 38 cal. DP gun 2 × 40 mm quad AA guns 2 × 40 mm twin AA guns 16 × 20 mm AA guns
Aircraft carried	modified to accommodate helicopters on an added portable deck

USS Fort Mandan (LSD-21) was a Casa Grande-class dock landing ship of the United States Navy, named in honor of Fort Mandan, the encampment at which the Lewis and Clark Expedition wintered in 1804–1805, in what is now North Dakota.