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Home → Boats → Submarines → J Class → J7

J 7

Built By: Devonport Dockyard
Build Group: J
Fate: Scrapped in November 1929.
J 7
J 7

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Transferred to Australia on completion

Events

 05-08-1916   Laid Down
 21-02-1917   Launched
 01-11-1917   Completed
J Specification
Length overall  274 ft
Beam  23 ft
Draught  16 ft
Displacement   1210 tons (surface)
  1760 tons (submerged)
Diving Depth  300 ft
Shafts  3
Propulsion  Surfaced 3 x 12 cylinder diesel engines (3,600 hp)
  Submerged 2 x battery driven electric motors (1,200 hp)
Speed  19.5 knots (surface)
  9.5 knots (submerged)
Endurance  91 tons Diesel Oil for 5,000 nautical miles at 12.5 knots
Armament  4 x 18 inch bow torpedo tubes
  2 x 18 inch beam torpedo tubes
  1 x 4 inch gun
Complement  5 Officers and 39 Ratings
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