Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what the projected whole life costs of Marlet (a) were originally and (b) are as of 13 October 2023.

The original Martlet business case from 2013 provided a cost of £311 million for the demonstration and manufacture phases of the project. The current forecast is £433 million which includes helicopter integration, ship modification and training solution costs shared with the associated Sea Venom project. Through life support cost estimates are commercially sensitive.