HMS E3

British E-class submarine HMS E3
History
United Kingdom
Name	E3
Builder	Vickers, Barrow-in-Furness
Laid down	27 April 1911
Launched	29 October 1912
Commissioned	29 May 1914
Fate	Sunk on 18 October 1914
General characteristics
Class and type	E-class submarine
Displacement	665 long tons (676 t) (surfaced) 796 long tons (809 t) (submerged)
Length	178 ft (54 m)
Beam	15.05 ft (4.59 m)
Draught	12 ft 6 in (3.81 m)
Installed power	800 hp (600 kW) (diesel engines) 420 hp (310 kW)
Propulsion	2 × Vickers diesel engines 2 × electric motors 2 × shafts
Speed	15.25 knots (28.24 km/h; 17.55 mph) (surfaced) 9.75 knots (18.06 km/h; 11.22 mph) (submerged)
Range	325 nmi (602 km; 374 mi) (surfaced)
Endurance	24 days
Complement	3 officers, 28 ratings
Armament	4 × 18-inch (450 mm) torpedo tubes (1 bow, 2 beam, 1 stern; 10 torpedoes)

HMS E3 was the third E-class submarine to be constructed, built at Barrow by Vickers in 1911–1912. Built with compartmentalisation and endurance not previously achievable, these were the best submarines in the Royal Navy at the start of the First World War. She was sunk in the first ever successful attack on one submarine by another, when she was torpedoed on 18 October 1914 by U-27 north of Schiermonnikoog, the Netherlands.