HC Deb 28 June 1960 vol 625 cc114-5W
Mr. A. Royle

asked the Minister of Aviation how much money is being spent each year firstly by the Government and secondly by the major aircraft groups on research into ways of silencing aircraft engines.

Mr. Sandys

For the reasons I then explained, it is difficult for me to give more precise information than that contained in my replies to the hon. Member for Feltham (Mr. Hunter) on 11th April last.