Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what the (a) operational and (b) other costs are for (i) crew and (ii) aircraft on each of the Queen Elizabeth-class aircraft carriers.

The annual cost of a Queen Elizabeth Class aircraft carrier's ship's company, based on a planned normal operating complement of 672 at 2014 capitation rates, is £34.6 million. This includes the additional tri-Service Longer Separation Allowance, based on the Royal Navy's normal operating cycle of 660 days at sea over three years.

Aircraft costs are attributed by aircraft type not by basing factors. The operational and other costs for embarked aircraft cannot therefore be separated by land or sea-based operation.