We need your support to keep TheyWorkForYou running and make sure people across the UK can continue to hold their elected representatives to account.Donate to our crowdfunder
The table below shows the ratio of maintenance hours to flying hours from April 2018 to March 2019 for the Apache, Wildcat and Gazelle helicopter fleets:
Dauphin II is maintained via civilian contract on an availability basis and figures are not measured in the same way.
Numbers are rounded to the nearest hour.
Figures provided are based on single service estimates, and are not official statistics produced by Defence Statistics.