HMS A11

A group of A-class submarines
History
United Kingdom
Name	A11
Builder	Vickers, Sons & Maxim Ltd. Barrow-in-Furness
Laid down	1903
Launched	8 March 1905
Commissioned	11 July 1905
Fate	Scrapped, May 1920
General characteristics
Class and type	A-class submarine
Displacement	190 long tons (193 t) surfaced 206 long tons (209 t) submerged
Length	105 ft (32.0 m)
Beam	12 ft 9 in (3.9 m)
Draught	10 ft 8 in (3.3 m)
Installed power	600 bhp (450 kW) (petrol engine) 150 hp (110 kW) (electric motor)
Propulsion	1 × 16-cylinder Wolseley petrol engine 1 × electric motor
Speed	11 knots (20 km/h; 13 mph) surfaced 6 knots (11 km/h; 6.9 mph) submerged
Range	500 nautical miles (930 km; 580 mi) at 10 kn (19 km/h; 12 mph) surfaced
Complement	2 officers and 9 ratings
Armament	2 × 18-inch (45 cm) torpedo tubes

HMS A11 was an A-class submarine built for the Royal Navy in the first decade of the 20th century. After surviving World War I, she was sold for scrap in 1920.