HMS C4

	HMS C4
History
United Kingdom
Name	HMS C4
Builder	Vickers, Barrow
Laid down	13 November 1905
Launched	18 October 1906
Commissioned	13 March 1907
Fate	Sold for scrapping, 28 February 1922
General characteristics
Class & type	C-class submarine
Displacement	287 long tons (292 t) surfaced; 316 long tons (321 t) submerged;
Length	142 ft 3 in (43.4 m)
Beam	13 ft 7 in (4.1 m)
Draught	11 ft 6 in (3.5 m)
Installed power	600 bhp (450 kW) petrol; 300 hp (220 kW) electric;
Propulsion	1 × 16-cylinder Vickers petrol engine; 1 × electric motor;
Speed	12 kn (22 km/h; 14 mph) surfaced; 7 kn (13 km/h; 8.1 mph) submerged;
Range	910 nmi (1,690 km; 1,050 mi) at 12 kn (22 km/h; 14 mph) on the surface
Test depth	100 feet (30.5 m)
Complement	2 officers and 14 ratings
Armament	2 × 18 in (450 mm) bow torpedo tubes

HMS C4 was one of 38 C-class submarines built for the Royal Navy in the first decade of the 20th century. The boat survived the First World War and was sold for scrap in 1922.