SUBMARINES:  CHATHAM BUILT

F Class: Coastal Submarines
These boats were built with a double hull in an attempt to improve on the saddle tank design. Apart from an additional displacement of 50 tons and a stern torpedo tube, they were very similar to the V Class submarines
Only three of the class were built, the first F1 being built at Chatham.
All three of the class survived the war and ended their service as training boats at Campbeltown. F1 and F3 were scrapped in 1920, F2 was sold in 1922.



f class.pic

F Class:  Information
  
Commissioned
1915 to 1917
Length (feet):
151ft
Beam (feet):
16ft ¾"
Surface Displacement (tons):
353
Submerged Displacement (tons):
515
Speed (knots):
Surface: 14.5 Dived: 8.75
Armament:
2 x 18" Bow Tubes; 1x 18" Stern Tube
Propulsion:
2 x 900 hp Diesel Engines
2 x 400 hp Electric Motors
Range
3000 nm
Complement
18



F CLASS
BUILT AT CHATHAM


F1




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