HMS S1 (1914)

History
United Kingdom
Name:	HMS S1
Builder:	Scotts Shipbuilding and Engineering Company, Greenock
Launched:	28 February 1914
Decommissioned:	Ceded to Italian Navy 25 October 1915
Fate:	Stricken 1919
General characteristics
Displacement:	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
Speed:	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
Armament:	2 × 18 inch torpedo tubes - 4 torpedoes, 1 × 12pdr gun

HMS S1 was a British submarine built in 1914 based on an Italian design.

While on patrol in June 1915 the submarine’s engines failed.^[1] The crew were able to capture the German fishing trawler Ost and used it to tow the submarine home.^[1]

The submarine was transferred to the Italian Royal Navy in October 1915.

References

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.