§ Mr. Quentin Davies
To ask the Secretary of State for Defence what the location and operational status is of each of the Royal Navy's(a) Trafalgar Class and (b) Swiftsure Class submarines. 
§ Mr. Hoon
(a) Of the Royal Navy's seven Trafalgar Class submarines, three are operationally available and four are in refit, extended maintenance or repair.
(b) Of the RN's five Swiftsure Class, three are operationally available and two are in refit, extended maintenance or repair.
Class Operational or engaged in preparing for service, trials or training Undergoing refit, extended maintenance or repair Swiftsure Sovereign Sceptre (Rosyth) Splendid Spartan (Rosyth) Superb Trafalgar Trafalgar Talent (Devonport) Triumph Tireless (Gibraltar) Turbulent Torbay (Devonport) Trenchant (Devonport)
The specific operational status and location of each operational submarine is classified for security reasons and is being withheld under Exemption 1 of the Code of Practice on Access to Government Information.