USS L-11

	USS L-11 in Bantry Bay, Ireland, during World War I. "A" (for "American") has been added to her markings to distinguish her from the British submarine HMS L11.
History
United States
Name	L-11
Builder	Fore River Shipbuilding Company, Quincy, Massachusetts
Cost	$573,454.45 (hull and machinery)
Laid down	17 February 1915
Launched	16 May 1916
Sponsored by	Miss Mary Richards Latimer
Commissioned	15 August 1916
Decommissioned	28 November 1923
Stricken	18 December 1930
Identification	Hull symbol: SS-49 (17 July 1920); Call sign: NYX; ;
Fate	Sold for scrapping, 28 November 1933
General characteristics
Type	L-class submarine
Displacement	450 long tons (457 t) surfaced; 548 long tons (557 t) submerged;
Length	167 ft 5 in (51.03 m)
Beam	17 ft 5 in (5.31 m)
Draft	13 ft 7 in (4.14 m)
Installed power	450 hp (340 kW) (diesel engines); 170 hp (130 kW) (electric motors);
Propulsion	2 × NELSECO diesel engines; 2 × Electro Dynamic electric motors; 2 × 60-cell batteries; 2 × Propellers;
Speed	14 kn (26 km/h; 16 mph) surfaced; 10.5 kn (19.4 km/h; 12.1 mph) submerged;
Range	3,300 nmi (6,100 km; 3,800 mi) at 11 kn (20 km/h; 13 mph) surfaced; 150 nmi (280 km; 170 mi) at 5 kn (9.3 km/h; 5.8 mph) submerged;
Test depth	200 ft (61 m)
Capacity	18,977 US gal (71,840 L; 15,802 imp gal) fuel
Complement	2 officers; 26 enlisted;
Armament	4 × 18 inch (450 mm) bow torpedo tubes (8 torpedoes); 1 × 3 in (76 mm)/23 caliber deck gun;

USS L-11 (SS-51), also known as "Submarine No. 51", was an L-class submarine of the United States Navy. She and her sister boats worked on submarine tactics in the Gulf of Mexico, Caribbean, and East Coast, prior to sailing to the Azores, and later stationed in Ireland, during WWI.