HMS L4

	HMS L4 by William Lionel Wyllie
History
United Kingdom
Name	HMS L4
Builder	Vickers Limited, Barrow-in-Furness
Laid down	21 June 1916
Launched	17 November 1917
Commissioned	26 December 1918
Fate	Sold for scrapping, 24 February 1934
General characteristics
Class & type	L-class submarine
Displacement	891 long tons (905 t) surfaced; 1,074 long tons (1,091 t) submerged;
Length	231 ft 1 in (70.4 m)
Beam	23 ft 6 in (7.2 m)
Draught	13 ft 3 in (4.0 m)
Installed power	2,400 bhp (1,800 kW) (diesel); 1,600 hp (1,200 kW) (electric);
Propulsion	2 × diesel engines; 2 × electric motors;
Speed	17 kn (31 km/h; 20 mph) surfaced; 10.5 kn (19.4 km/h; 12.1 mph) submerged;
Range	3,800 nmi (7,000 km; 4,400 mi) at 10 kn (19 km/h; 12 mph) on the surface
Test depth	100 feet (30.5 m)
Complement	35
Armament	6 × 18 in (457 mm) torpedo tubes (4 bow, 2 beam); 1 × 4-inch deck gun;

HMS L4 was a L-class submarine built for the Royal Navy during World War I. The boat survived the war and was sold for scrap in 1934.