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Career Royal Navy Ensign
Builder: Vickers, Sons & Maxim Ltd. Barrow-in-Furness, England
Laid down: 1 September 1903
Launched: 23 January 1905
Commissioned: 8 May 1905
Fate: Scrapped 1920
Notes: Pennant # I-18
General characteristics
Class & type: A class submarine
Displacement: 190 tons surfaced, 207 tons submerged
Length: 105.25 ft (32.08 m)
Beam: 12.75 ft (3.89 m)
Draught: 10.5 ft (3.2 m)

550 hp petrol engine

150 hp electric engine

11 kn (20 km/h) maximum surfaced

8 kn (15 km/h) maximum submerged

325 nmi (602 km) at 11 kn (20 km/h) surfaced

20 nmi (37 km) at 6 kn (11 km/h) submerged
Complement: 11 (2 officers and 9 ratings)
Armament: Two 18 inch (457 mm) torpedo tubes, plus two reloads

HMS A8 was an early Royal Navy submarine.

She was a member of Group Two of the first British A-class of submarines (a second, much different A-class submarine appeared towards the end of the Second World War). Like the other members of her class, she was built at Vickers Barrow-in-Furness.

She sank with the loss of 15 crew as a result of an accident whilst running on the surface in Plymouth Sound on 8 June 1905.[1] A sudden dip in the bow caused the submarine to be swamped through the hatch in the conning tower.[1] She was salvaged four days after the accident at which point a loose rivet was found in the bow plating.[1] The submarine was then repaired and recommissioned and used for training during the First World War along with A9 as part of the First Submarine Flotilla, operating near Devonport through early 1916. She was scrapped in October 1920 at Dartmouth.


  1. ^ a b c Gray, Edwyn (2003). Disasters of the Deep A Comprehensive Survey of Submarine Accidents & Disasters. Leo Cooper. pp. 51–52. ISBN 0-85052-987-5. 

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