An item referred to the magazine N.M.R. dated 20 February 1936 reporting that the shipyard of Scotts, Greenock, Scotland was to built a submarine minelayer of the Porpoise-class to be named Cachelot with a speed of 10 (submerged)-17 (surfaced) knots and an armament of 1-10,5cm gun, 2 anti aircraft guns and six torpedo tubes. The reporter suggested that the British Admiralty probably thought that submarines were the most suitable for mine laying tasks if the minefields were to be secret.(1)
Note
1. Laid down at Scotts Shipbuilding and Engineering Company on 12 May 1936 as part of the Grampus-class, launched on 2 December 1937, commissioned on 15 August 1938 and sunk when she was rammed by the Italian destroyer Generale Achille papa on 30 July 1941 while underway from Malta towards Alexandria, Egypt. Sometimes was in stead of the Grampus-class referred to the Porpoise-class which was the single prototype. For the Grampus-class was a modified design used. Preceded by the River-class and succeeded by the T-class.
