HMS H47

	HMS H47
History
United Kingdom
Name	HMS H47
Builder	William Beardmore and Company, Dalmuir
Laid down	20 November 1917
Launched	19 November 1918
Commissioned	25 February 1919
Fate	Sunk after collision with HMS L12, 9 July 1929
General characteristics
Class and type	H class submarine
Displacement	423 long tons (430 t) surfaced; 510 long tons (518 t) submerged;
Length	171 ft 0 in (52.12 m)
Beam	15 ft 4 in (4.67 m)
Propulsion	1 × 480 hp (358 kW) diesel engine; 2 × 620 hp (462 kW) electric motors;
Speed	11.5 knots (21.3 km/h; 13.2 mph) surfaced; 9 knots (17 km/h; 10 mph) submerged;
Range	2,985 nmi (5,528 km) at 7.5 kn (13.9 km/h; 8.6 mph) surfaced; 130 nmi (240 km) at 2 kn (3.7 km/h; 2.3 mph) submerged;
Complement	22
Armament	4 × 21 in (533 mm) bow torpedo tubes; 8 × 21 inch torpedoes;

HMS H47 was a British H class submarine built by William Beardmore and Company, Dalmuir. She was laid down on 20 November 1917 and was commissioned on 25 February 1919. It had a complement of twenty-two crew members. HMS H47 was sunk in a collision with British L class submarine L12 off Milford Haven, Wales on 9 July 1929. Twenty one of the crew were lost with only three survivors.

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