Submarines

Porpoise class

6 ships

The Porpoise class submarine HMS Cachalot. She was lost on 30 Jul 1941.

Type	Submarine
Displacement	1520 / 2157 BRT
Length	289 feet
Complement	6 officers + 53 men
Armament	1 4" gun 2 MG AA 6 21" torpedo tubes (6 bow) 50 mines
Max speed	15.75 / 8.75 knots (surfaced/submerged)
Engines	Diesel / Electric, 2 shafts
Power	3300 / 1630 HP (surfaced/submerged)
Notes on class	Large minelaying submarines. Beneath the casing ran two rails which stretched the entire length of the casing. The mines were stowed on the rails until the time of laying the minefield. The casing had large stern doors which were opened when laying the mines and the mines were strewn through these stern doors. HMS Porpoise (the first one of the class built) same specifications as above exept; Displacement: 1500 / 2053 BRT Lenght: 288 feet.

All ships of the Porpoise class:

Royal Navy (more on Royal Navy)

HMS Cachalot (N 83) (lost 30 Jul 1941)
HMS Grampus (N 56) (lost 16 Jun 1940)
HMS Narwhal (N 45) (lost 23 Jul 1940)
HMS Porpoise (N 14) (lost 19 Jan 1945)
HMS Rorqual (N 74)
HMS Seal (37 M) (lost 5 May 1940)

5 submarines of the Porpoise class lost.