HC Deb 18 October 1968 vol 770 c177W
Mr. Onslow

asked the Secretary of State for Defence why it is not in the public interest to publish the average monthly total of flying hours of Royal Air Force pilots during each of the past three years.

Mr. Merlyn Rees

Taken together with other information which is available it would enable a hostile intelligence service to arrive at a significantly closer assessment of the operational capabilities of the Royal Air Force.