Question to the Ministry of Defence:

To ask Her Majesty’s Government, further to the Written Answer by Earl Howe on 13 September (HL1532) stating that HMS Ocean had an expected in service life of 20 years and would be paid off at the end of 20 years' service, what was the expected in service life of HMS Vanguard and HMS St Albans when designed, and at what age they are expected to be paid off.

The Type 23 frigates entered service with an anticipated service life of 18 years for each ship. A Type 23 sustainment programme, comprising a series of long-term planned upgrades, aligned with routine maintenance, has permitted the service life of the class to be extended so that HMS St Albans, which entered service in 2001 has a current Out of Service Date of 2035.

For HMS Vanguard, I refer the noble Lord to the answer I gave to him on 7 December 2015 (Question HL4046). HMS Vanguard entered service in 1993 and is planned to remain in-service until the Successor submarines are introduced into service in the 2030s. I am withholding their respective planned Out of Service and In Service Dates as their disclosure would be prejudicial to national security.