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Home → Boats → Submarines → B Class → B5

B 5 (I 25)

Built By: Vickers (Barrow)
Build Group: B
Fate: Sold for breaking 25/8/1921 to A J Andersen but resold on 1/3/1922 to J Smith of Poole.
B5
B5
B5 preparing to dive depicted on postcard
B5 preparing to dive depicted on postcard

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Commanders
1914: Lieutenant   Thomas Kerr
1915: Lieutenant   O E Hallifax

1914: 3rd Flotilla, Devonport, HMS Forth

Events

 14-10-1905   Launched
 25-02-1906   Completed
 25-08-1921   Sold for breaking to A J Andersen but resold on 1/3/1922 to J Smith of Poole.
B Specification
Length overall  142 ft
Beam  12 ft
Draught  11 ft
Displacement   Surface 287 tons
  Submerged 316 tons
Diving Depth  100 ft
Speed  Surface 7 knots (design)
  Surface 6.5 knots (service)
  Submerged 13 to 13.5 knots (design)
  Submerged 12 knots (service)
No. of shafts  1
Propeller  3 blades, 5 ft diameter
Armament  2 x 18 inch bow torpedo tubes (4 torpedoes carried)
Endurance  Surface: 1300 miles at 9 knots (design)
  Surface: 740 miles at full power (service)
  Submerged: 22.5 miles
Complement  2 x Officers, 13 x Ratings
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Class: 1941 - 1958: V Class
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Since the beginning of the Royal Navy Submarine Service in 1901, 173 submarines have been lost and in many circumstances with their entire crew. War inevitably takes a heavy toll:

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