HMS Grampus (N56)

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Hms grampus n56 submarine.jpg
HMS Grampus (N56)
United Kingdom
NameHMS Grampus
BuilderChatham Dockyard
Laid down20 August 1934
Launched25 February 1936
Commissioned10 March 1937
Fatesunk, 16 June 1940
GRAMPUS badge-1-.jpg
General characteristics
Class and typeGrampus-class submarine
  • 1,810 long tons (1,840 t) (surfaced)
  • 2,157 long tons (2,192 t) (submerged)
Length293 ft (89 m)
Beam25 ft 6 in (7.77 m)
Draught16 ft 10 in (5.13 m)
Installed power
  • 3,300 hp (2,500 kW) (diesel engines)
  • 1,630 hp (1,220 kW) (electric motors)
  • 15.5 kn (17.8 mph; 28.7 km/h) (surfaced)
  • 8.75 kn (10.07 mph; 16.21 km/h) (submerged)
Armament6 × 21 inch (533 mm) torpedo tubes (bow) (12 torpedoes), 1 × 4 in (100 mm) deck gun, 50 × mines

HMS Grampus (N56) was the lead ship of her class of mine-laying submarine of the Royal Navy. She was built at Chatham Dockyard and launched on 25 February 1936. She served in the Second World War off China before moving to the Mediterranean Sea. She was sunk with all hands by the Regia Marina on 16 June 1940.

On 16 June 1940, under the command of Lieutenant Commander C. A. Rowe, Grampus was laying mines in the Syracuse and Augusta, Sicily area. She was seen by the Italian torpedo boat Circe, which was on anti-submarine patrol with Clio, Calliope, and Polluce. Within a very short time, Grampus was destroyed. Wreckage came to the surface along with air bubbles and oil. Polluce was credited with the kill. There were no survivors. Some sources give the date of this action as 24 June 1940.



  • Akermann, Paul (2002). Encyclopaedia of British Submarines 1901–1955 (reprint of the 1989 ed.). Penzance, Cornwall: Periscope Publishing. ISBN 1-904381-05-7.
  • Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6.
  • Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
  • McCartney, Innes (2006). British Submarines 1939–1945. New Vanguard. 129. Oxford, UK: Osprey. ISBN 1-84603-007-2.

External links[edit]

Coordinates: 37°5′N 17°30′E / 37.083°N 17.500°E / 37.083; 17.500