| Navy | The Royal Navy |
| Type | Submarine |
| Class | Porpoise |
| Pennant | N 56 |
| Built by | Chatham Dockyard (Chatham, U.K.) |
| Ordered | |
| Laid down | 20 Aug 1934 |
| Launched | 25 Feb 1936 |
| Commissioned | 10 Mar 1937 |
| Lost | 16 Jun 1940 |
| Loss position | 37.05N, 17.30E (See a map) |
| History | At the outbreak of the Second World War HMS Grampus was part of the 4th Submarine Flotilla on the China Station and was at Singapore. After a refit at Hong Kong Grampus departed that place on 13 April bound for the Mediterranean. Grampus arrived at Malta for duty with the Mediterranean Fleet on 13 May 1940. HMS Grampus (Lt.Cdr. Charles Alexander Rowe, RN) was sunk about 105 nautical miles east of Syracuse, Sicily, Italy in position 37º05'N, 17º30'E by the Italian torpedo boats Circe, Clio and Polluce. Commanding Officer: |
Commands listed for HMS Grampus (N 56)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Lt.Cdr. Charles Alexander Rowe, RN | 1 Sep 1939 | 16 Jun 1940 (+) |
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Noteable events involving Grampus include:
10 Jun 1940
HMS Grampus (Lt.Cdr. C.A. Rowe, RN) departs Malta.
13 Jun 1940
HMS Grampus (Lt.Cdr. C.A. Rowe, RN) attacks the
Italian submarine Giovanni Bausan and the Italian torpedo boat Polluce with torpedoes. The attack however fails.
Grampus also laid a minefield (50 mines) off Augusta, Sicily, Italy.
14 Jun 1940
Off Syracuse the Italian torpedo boat Polluce is attacked once again with torpedoes, these must have been fired by Grampus.