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Home → Boats → Submarines → T Class → Theban

Theban (P 341)

Built By: Vickers (Barrow)
Build Group: T 3
Fate: Cancelled

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T 3 Specification
Length overall  273 ft 6 inch
Beam  26 ft 6 inch
Depth  14 ft 3 inch
Displacement   1422 tons (surface)
  1571 tons (submerged)
Diving Depth  (i) 300 ft
Speed  Surface 15.25 knots (design)
  Surface 15.25 knots (service)
  Submerged 9 knots (design)
  Submerged 8.75 knots (service)
No. of shafts  2
Endurance  Surface: 7500 miles at 15.25 knots (design)
  (ii) Surface: 8000 miles at 10 knots (service)
  Submerged: 80 miles at 4 knots (design)
  Submerged: 80 miles at 4 knots (service)
Armament  8 x 21 inch bow tubes (2 external)
  2 x 21 inch amidship tubes
  (17 torpedoes carried)
  1 x 4 inch gun
  1 x 20mm Oerlikon cannon
  3 x 0.303 inch machine-guns
Complement  (peacetime) 5 Officers and 51 Ratings
  (wartime) 6 Officers and 56 Ratings
Notes  (i) This was increased to 350 feet in the all-welded boats.
  (ii) T Class submarines serving in the Far East were modified to carry extra fuel, which increased endurance to 11 000 miles at 10 knots.
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