USS K-8

	USS K-8 recovering a torpedo, c. 1915, while serving on the Pacific Coast
History
United States
Name	K-8
Builder	Union Iron Works, San Francisco, California
Cost	$574,561.25 (hull and machinery)
Laid down	10 May 1912
Launched	11 July 1914
Sponsored by	Mrs. John W. Lewis
Commissioned	1 December 1914
Decommissioned	24 February 1923
Stricken	18 December 1930
Identification	Hull symbol: SS-39 (17 July 1920); Call sign: NYM; ;
Fate	Sold for scrapping, 3 June 1931
General characteristics
Class & type	K-class submarine
Displacement	392 long tons (398 t) surfaced; 521 long tons (529 t) submerged;
Length	153 ft 7 in (46.81 m)
Beam	16 ft 8 in (5.08 m)
Draft	13 ft 1 in (3.99 m)
Installed power	950 hp (710 kW) (diesel engines); 340 hp (250 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	4,500 nmi (8,300 km; 5,200 mi) at 10 kn (19 km/h; 12 mph) surfaced; 120 nmi (220 km; 140 mi) at 5 kn (9.3 km/h; 5.8 mph) submerged;
Test depth	200 ft (61 m)
Capacity	18,126 US gal (68,610 L; 15,093 imp gal) fuel
Complement	2 officers; 26 enlisted;
Armament	4 × 18 inch (450 mm) bow torpedo tubes (8 torpedoes)

USS K-8 (SS-39), also known as "Submarine No. 39", was a K-class submarine of the United States Navy(USN). She patrolled in the Gulf of Mexico, during WWI.