The oldest class of British submarines still afloat, intended for coastal patrol work. They are enlarged and improved versions of the preceding A class.

Ship dataEdit

Endurance: 1853 km
Maximum speed: 12 kts

Armour Protection
Armour: 1

2 x 18in Mk VIII Torpedo. Ammo: 4 torpedoes

Ships in classEdit

  • B.1
  • B.3
  • B.4
  • B.5

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