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Military Aircraft: Helicopters

Question for Ministry of Defence

UIN 7679, tabled on 30 October 2019

To ask the Secretary of State for Defence, what the ratio of maintenance hours to flown hours is for the (a) AgustaWestland Apache AH1, (b) AgustaWestland AW159 Wildcat, (c) Eurocopter AS365 Dauphin II and (d) Westland Gazelle.

Answered on

4 November 2019

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.

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