§ Mr. CoxTo ask the Secretary of State for Defence what was the number and class of submarines in service in the Royal Navy on 10 May.
§ Mr. Archie HamiltonThe Royal Navy's submarine fleet on 10 May consisted of three Polaris, one Valiant, five Swiftsure, seven Trafalgar, three Oberon and three Upholder Class submarines giving a total of 22 boats.