HC Deb 25 March 1936 vol 310 c1214
26. Mr. HULBERT

asked the Under-Secretary of State for Air the number of new type machines tested at Martlesham Heath during the years ended 31st December, 1934, and 31st -December, 1935?

Sir P. SASSOON

The numbers were 57 and 34 in 1934 and 1935 respectively. These cover service and civil types, and include major modifications which have necessitated type-performance trials.