British Royal Navy`s F class submarine
In 1913 the Admiralty decided to produce a standard double hull costal type submarine-the F class was designed.

Specifications, HMS F-1, F class:
Keel laid down by Chatham Royal Dockyard; launched May 31, 1915
Displacement (srf/sub tons): 363/525            
Dimensions (L*B*D feet): 150`10*16`1*10`6
Propulsion: 2*450hp 6-cylinder Vickers diesel engine, 2*200hp electric motors for submergence driving two shafts
Speed (srf/sub knots):
Range (srf/sub n/miles@knots): 3,000@9.5/36@4
Diving depth (feet): 100
Complement: 2 officers 17 enlisted
Torpedo: 2*18" bow torpedo tube, 1*18" stern torpedo tube, containing a total of 6 torpedoes
Mines: none
Armament: 1*12pdr main deck gun added later
Only 3 units constructed, F-1 to F-3, each by a different shipyard during 1915-17.

Back to History Index

Image Country Year Description
Liberia 2001 F-2,built August 14,1915 at H.M.Dockyard
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