HC Deb 06 December 1971 vol 827 c216W
91. Mr. Onslow

asked the Secretary of State for Trade and Industry what steps he is taking to encourage the fitting of engine smoke suppressors to aircraft using British airports.

Mr. Corfield

I am advised that the most satisfactory way of reducing smoke emission from jet aircraft engines is by changes in the design of the combustion system and the Government are funding research and development work to this end.