A-class submarine (1903)

The A-class was the Royal Navy's first class of British-designed submarines. Thirteen were built by Vickers at Barrow-in-Furness between 1902 and 1905 as an improvement on the US Plunger class.

For the later A classes, see Amphion-class submarine and Astute-class submarine.

Class overview
NameA-class
BuildersVickers, Barrow-in-Furness
Operators Royal Navy
Preceded byHolland class
Succeeded byB-class
Completed13
General characteristics (A8–A13)
TypeSubmarine
Displacement
  • 190 tons surfaced
  • 207 tons submerged
Length105 ft 0+1⁄2 in (32.02 m)
Beam12 ft 8+3⁄4 in (3.88 m)
Draught10 ft 8 in (3.25 m) surfaced
Propulsion
  • 16 cylinder Wolseley 600 hp (450 kW) petrol engine
  • 150 hp (110 kW) electric motor
Speed
  • 11+1⁄2 kn (21.3 km/h; 13.2 mph) surfaced
  • 6 kn (11 km/h; 6.9 mph) dived
Complement11
Armament2 × 18 in (460 mm) torpedo tubes (bow, four torpedoes)
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