British G class submarine

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Class overview
Name: G
Builders: Chatham Dockyard, Armstrong Whitworth, Vickers, Scott's
Operators: Naval flag of United Kingdom Royal Navy
Completed: 15
Cancelled: 1
Lost: 4
Retired: 14
General characteristics
Type: submarine
Displacement: Surfaced / Submerged: 703 tons / 837 tons
Length: 57.5 m
Beam: 6.92 m
Draught: 4.15 m
Propulsion:

Twin-shaft, 2 x 800 bhp Vickers diesel,

2 x 840 shp electric motors
Speed: Surfaced / Submerged: 14.5 knots (27 km/h) / 10.0 knots
Range: 44.14 tons of fuel oil giving 3,160 nm surfaced at 10 knots (19 km/h). 95 nm submerged, at 3 knots (6 km/h).
Complement: 31
Armament: Torpedoes: 2 x 18" bow tubes, 2 x 18" beam tubes, 1 x 21" stern tube. 10 torpedoes in total. Guns: 1 x 3" 10 cwt. Mk.1 Elswick Quick Fire High Angle {QFHA}, forward. 1 x 12 pdr. 8 cwt. Mk. 1 gun HA mounting, aft.


The Royal Navy's G-class of diesel/electric submarines were launched between 1914 and 1917, and intended for operations in the North Sea in World War I against German U-boats. A total of 14 boats were built at four yards: G1 to G5 by Chatham Dockyard, G6 & G7 by Armstrong Whitworth, G8 to G13 by Vickers, and G14 by Scott's on the Clyde. G15 was ordered from Samuel White's yard at Cowes, Isle of Wight, but cancelled. The class was distinguished by armament with the 21" torpedo, and the fitting of an electric oven in the galley. The G-class had their bows raised during the war to increase buoyancy and improve seakeeping.

[edit] Boats

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