British S-class submarine (1914)

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Dockyard plans for HMS S1, lead submarine of the class
Class overview
Builders: Scotts, Greenock
Operators:  Royal Navy
Completed: 3
General characteristics
Type: Submarine
  • 265 tons surfaced
  • 324 tons submerged
Length: 45.1 m (148 ft 0 in)
Beam: 4.4 m (14 ft 5 in)
Draught: 3.2 m (10 ft 6 in)
Propulsion: 2 shafts, Scott-FIAT 6-cyl Diesels, 2 Electric motors, 650 / 400 hp
  • 13 knots (24 km/h) surfaced
  • 8.5 knots (15.7 km/h) submerged
Range: 1,600 nautical miles (3,000 km) at 8.5 knots (15.7 km/h) surfaced
Complement: 18

The British S-class submarine of 1914 were built by Scotts, Greenock just before World War I. The S class was based on an Italian design of the Laurenti boats.

The design had ten internal bulkheads.[1]

Three vessels were constructed. All three were transferred to the Italian Navy in October 1915.


  1. ^ Tall, J.J; Paul Kemp (1996). HM Submarines in Camera An Illustrated History of British Submarines. Sutton Publishing. p. 44. ISBN 0-7509-0875-0.
  • The Royal Navy Submarine Service, A Centennial History, by Antony Preston