Question to the Ministry of Defence:

To ask the Secretary of State for Defence, how many RAF (a) pilot navigator instructors, (b) navigator instructors, (c) helicopter navigator instructors, (d) helicopter crewman instructors, (e) air engineer instructors, (f) air electronics instructors and (g) weapons instructors there were in each of the last five years; and how many of each such instructor have left the armed forces in that period.

Details of the number of RAF personnel who currently hold the relevant instructor qualifications (as at 6 December 2017) can be provided within the cost limit, and are:

Data has been rounded to the nearest 10, where "~" denotes a number less than or equal to 5. When rounding to the nearest 10, numbers ending in 5 have been rounded to the nearest multiple of 20 to prevent systematic bias.

Air Electronics instructor has been interpreted as Electronic Warfare instructor.