USS F-2 (SS-21)

USS F-2 underway in San Diego harbor, California
History
United States
Name	USS F-2
Builder	Union Iron Works, San Francisco, California
Laid down	23 August 1909, as USS Barracuda
Launched	19 March 1912
Commissioned	25 June 1912
Decommissioned	16 March 1922
Renamed	USS F-2, 17 November 1911
Fate	Sold, 17 August 1922
General characteristics
Type	F-class submarine
Displacement	330 long tons (335 t) surfaced 400 long tons (406 t) submerged
Length	142 ft 7 in (43.5 m)
Beam	15 ft 5 in (4.7 m)
Draft	12 ft 2 in (3.7 m)
Installed power	780 bhp (580 kW) (diesel) 610 hp (450 kW) (electric)
Propulsion	2 × diesel engines 2 × electric motors
Speed	14 knots (26 km/h; 16 mph) surfaced 11.25 knots (20.84 km/h; 12.95 mph) submerged
Range	2,500 nmi (4,600 km; 2,900 mi) at 11 knots (20 km/h; 13 mph) on the surface 100 nmi (190 km; 120 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	200 feet (61.0 m)
Complement	22 officers and enlisted men
Armament	4 × bow 18 inch (450 mm) torpedo tubes

USS F-2 (SS-21) was an F-class submarine built for the United States Navy during the 1910s.