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H 21

Built By: Vickers (Barrow)
Build Group: H21
Fate: Sold for Breaking up 17th July 1926

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Events

 02-03-1917   Laid Down
 20-10-1917   Launched
 28-01-1918   Completed
 17-07-1926   Sold for Breaking up
H21 Specification
Length overall  171 ft 9 inch
Beam  15 ft 9 inch
Depth  15 ft 4 inch
Displacement   438 tons (surface)
  504 tons (submerged)
Diving Depth  150 ft
Speed  Surface 13 knots (design)
  Surface 11.5 knots (service)
  Submerged 10 to 10.5 knots (design)
  Submerged 9 knots (service)
No. of shafts  2
Armament  4 x 21 inch bow tubes (6 torpedoes carried)
Endurance  Surface: 2000 miles at full power (design)
  Surface: 1100 miles at full power or 1600 miles at 10 knots (service)
  Submerged: 70 miles at 3 knots (design)
  Submerged: 9 miles at 8 knots or 34 miles at 3.5 knots (service)
Complement   22
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Featured Badge

H 28


Class: 1917 - 1945: H Class
Built By: Vickers (Barrow)
Build Group: H21
Fate:
Sold on 18th August 1944 to be scrapped at Troon.
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