HC Deb 30 March 1936 vol 310 cc1635-6W
Mr. DAY

asked the Under-Secretary of State for Air whether he will give the number of machines (service aircraft) at present in use in the Royal Air Force that are not equipped with the slot safety device?

Sir P. SASSOON

There are at present 21 squadrons equipped with types not fitted with slots. The types concerned are flying boats and single-seater machines with a total fast-line strength of approximately 175 aircraft.