Experimental Submarines

F Class

  • F Class Submarine
  • f2
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The 'F' Class were built to an Admiralty design for comparison with the experimental classes which had been approved a year earlier. They were double hulled and based largely on the design of the experimental 'V' Class but with an additional stern tube.

After trials F1 was given larger hydroplanes and substantial plane guards

F1 and F3 were fitted with Vickers diesels, whilst F2 was fitted with MAN diesels built under licence by Whites.   These boats saw little in the way of war service apart from some local defence work and were quickly disposed of.

Five further boats F4 to F8 were cancelled after the outbreak of war.

3 Built

F1

H.M. Dockyard, Chatham
1915 - 1917

F2
Thornycroft, Woolston
1915 - 1917

F3
White, Cowes, IoW
1915 - 1917

 

Technical Information

Displacement:
363 sf
525 sm

Length (Metric):
46m

Breadth (Metric):
4.9

Draught/Height (Metric):
3.2

Machinery:
2 Vickers (F2 MAN) Diesels 900hp
2 Electric Motors 400hp.
Two Shafts.

Speed (kts):
14.0 sf
8.75 sm

Oil Supply (tons):


Armament:
3 x 18 inch tubes, 2 (bow), 1 (stern). 1 x 2 pdr gun.
Reloads:6.

Range:


Complement:
18 Officers and Ratings.