HC Deb 26 March 1973 vol 853 c217W
48. Mr. Russell Kerr

asked the Secretary of State for Trade and Industry how many aircraft departed from London Heathrow Airport between 11.30 p.m. and 6 a.m. during the four months commencing 1st November 1972; and how many of these were passenger aircraft.

Mr. Onslow

There were 1,481 departures during the period, of which 528 were by jet aircraft. Figures for passenger aircraft are not readily available, partly because non-jet aircraft are not subject to restriction at any time; but further information will be supplied as soon as possible.