§ Captain W. BENNasked the Secretary of State for Air whether his attention has been called to the invention of a new silencer for air engines; and whether there is any likelihood of its general adoption?
Captain GUESTI do not know whether the hon. Member is referring to any particular type of silencer. I may say that various types have, from time to time, been brought to the notice of the Air Ministry, and that, of these, the more promising ones are subjected to tests, including full-scale tests on actual aeroplanes, and that these tests are still pro-136W ceeding at the Royal Aircraft Establishment, Farnborough.