To ask the Secretary of State for Defence how many (a) military and (b) civilian aircraft (i) took off from and (ii) landed at each operational Royal Air Force flying station in the United Kingdom between 11 pm. and 7 am in the last 12 months for which figures are available on (A) weekdays and (B) weekends; and which stations were involved. (136439)

These data will take time to collate. Once this work has been completed I will write to the hon. Member and place a copy of my letter in the Library of the House.