HC Deb 20 December 1971 vol 828 c229W
36. Mr. Onslow

asked the Secretary of State for Trade and Industry what steps he has taken to study the results of the retrofitting of engine smoke suppressors on civil jet aircraft in the United States of America.

Mr. Corfield

My Department is well aware of the American work. The techniques they have employed in reducing smoke formation in one of their types of civil engine are already well understood by the National Gas Turbine Establishment and by industry.