questionText: To ask the Secretary of State for Defence, whether he has made an assessment of the potential impact of F-35B Block 4 upgrades on the (a) cooling and (b) power demands of F135-PW-600 engines installed in the UK fleet.
answerText: I refer the hon. Member to the answer I gave to Question 199396 on 18 September 2023 and my predecessor gave to Question 45734 on 2 September 2022.
heading: Military Aircraft: Engines