HC Deb 25 March 1964 vol 692 c104W
103. Mr. Wainwright

asked the Civil Lord of the Admiralty how many naval architects are working on the designs for No. 4 and No. 5 Polaris submarines.

Mr. Hay

Nine members of the Royal Corps of Naval Constructors are at present employed on Polaris design work and a further three on planning and production. Numbers 4 and 5 Polaris submarines will be to the same design as Numbers 1, 2 and 3.