Porpoise Class
Porpoise

Rorqual

Rorqual

Minelaying submarines.

 

Boats in class  6 Units - Porpoise  Narwahl  Rorqual  Grampus  Seal Cachalot
Normal displacement surfaced  Porpoise: 1.782t
1.810t
Normal displacement submerged  Porpoise: 2.053t
2.157t
Machinery  2 x Diesel
2 x electric
Maximum power Surfaced/Submerged  3.300hp/1.630hp
Speed Surfaced/Submerged  15,75 knots/8,75 knots
Armament  1 x 102mm L/40 Gun
2 x 303 Lewis MG
Torpedeo Tubes  6 x 533mm/12 Torpedoes
Length  89,1m
Beam  7,7m
Height  5,1m
Complement  59
Year of construction  1931-1939
Fate  
Builder  Porpoise  Narwahl  Rorqual - Vicker Armstrong Barrow 1931 1937
Grampus  Seal - Chatham Dockyard 1934-1939
Cachalot - Scotts Greenock 1036-1938