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W Class (1915) SS Specification 

Crew :

18. To W Class (1915) SS Ships :
Displacement : Group 1
333 tons (338 tonnes) surfaced;
494 tons (501 tonnes) dived.

Group2
320 tons (327 tonnes) surfaced;
490 tons (495 tonnes) dived.

Dimensions :

Group 1
171ft 11in x 15ft 5in x 9ft;
52.4m x 4.7m x 2.75m

Group 2
149ft 6in x 17ft x 9ft 6in.

Range : 2,500nm @ 9kts surfaced;
65nm @ 5kts dived.

Diving Depth :

?
Armament : 2 x 18in torpedo tubes;
4 torpedoes
Power plant : 2 x 355bhp diesel engines;
2 x 240ehp electric motors.

Max Speed :

12kts surfaced;
8.5kts dived.
Note: The original design included two external bow torpedoes carried in frames and it is not clear if these were fitted or not. If they were, the total torpedoes and tubes would be increased by two.
This page last edited - 07 March, 2013.

Copyright Ian M King, except where otherwise indicated.