USS E-2

	USS E-2, ex-Sturgeon, underway prior to World War I
History
United States
Name	Sturgeon
Namesake	The sturgeon
Builder	Fore River Shipyard, Quincy, Massachusetts
Cost	$390,930.12 (hull and machinery)
Laid down	22 December 1909
Launched	16 June 1911
Sponsored by	Miss Margaret Nelson Little
Commissioned	14 February 1912
Decommissioned	13 March 1916
Recommissioned	25 March 1918
Decommissioned	20 October 1921
Renamed	E-2 (Submarine No.25), 17 November 1911
Stricken	20 October 1921
Identification	Hull symbol: SS-25 (17 July 1920); Call sign: NTJ; ;
Fate	Sold for scrapping, 19 April 1922
General characteristics
Class & type	E-class submarine
Displacement	287 long tons (292 t) surfaced; 342 long tons (347 t) submerged;
Length	135 ft 3 in (41.22 m)
Beam	14 ft 7 in (4.45 m)
Draft	11 ft 8 in (3.56 m)
Installed power	700 hp (522 kW) (diesel); 600 hp (447 kW) (electric);
Propulsion	2 × NELSECO diesel engines; 2 × Electro Dynamic electric motors; 2 × 60-cell batteries; 2 × Propellers;
Speed	13.5 kn (25.0 km/h; 15.5 mph) surfaced; 11.5 kn (21.3 km/h; 13.2 mph) submerged;
Range	2,100 nmi (3,900 km; 2,400 mi) at 11 kn (20 km/h; 13 mph) surfaced ; 100 nmi (190 km; 120 mi) at 5 kn (9.3 km/h; 5.8 mph) submerged;
Test depth	200 ft (61 m)
Capacity	8,486 US gal (32,120 L; 7,066 imp gal) fuel
Complement	1 officer; 19 enlisted;
Armament	4 × 18 inch (450 mm) bow torpedo tubes (4 torpedoes)

USS Sturgeon/E-2 (SS-25), also known as "Submarine No. 25", was an E-class submarine of the United States Navy (USN). She was the first boat of the USN named for the sturgeon, though she was renamed E-2 prior to commissioning.