Tetrarch Crest

Large Patrol Submarine

Updated 7th February 2018

 


Type:
Triton Class



Pennant No.:
77.T - Renumbered 1939.
77.N - Renumbered 1940.
N.77

Laid Down:
24th August 1938
Vickers-Armstrong, Barrow

Commissioned:
15th February 1940
Lt. Cdr. R.G. Mills.

Commander:
Nov. 1939 - Nov. 1940.
Lt. Cdr. R.G. Mills DSO, DSC*.
Nov. 1940 - July 1941.
Lt.Cdr. R.M.T. Peacock.
July - Oct. 1941
Lt. Cdr. G.H. Greenway.

Complement:
56 Peacetime.
62 Wartime.
5 Officers and 51 Ratings Peacetime
6 Officers and 56 Ratings Wartime.

Service Career:
1940
2nd Flotilla, HMS Forth, Rosyth.
1940.
1st Flotilla, Malta.
1941.
1st Flotilla, HMS Medway, Alexandria.

Fate:
Completed seventeen 'War Patrols'. She was lost whilst proceeding from Malta to Gibraltar enroute to the UK for refit.

Tetrarch was configured as a minelayer based on a design which was implemented in Vickers build of 2 Russian submarines.

Involved in the Norwegian campaign of 1940.

Sank the tanker Persiano (2,475 tons) on 12th April 1941

Lost 27th October 1941, cause unknown, possibly mined.