HC Deb 23 June 1975 vol 894 c35W
Mr. Hayhoe

asked the Secretary of State for Trade if he will arrange a series of Concorde landings and take-offs at Heathrow so that those living near the airport may assess the noise nuisance this aircraft will cause under normal airline service conditions.

Mr. Clinton Davis

No. A substantial number of Concorde flights to and from Heathrow are, however, planned to take place between July and September as part of the endurance flying programme. These flights will be monitored for noise purposes.

Mr. Hayhoe

asked the Secretary of State for Trade what are the latest figures for the landing and take-off noise of Concorde; and how these compare with the current generation of large jets in airline service.

Mr. Kaufman

I have been asked to reply.

The manufacturers' latest estimate remains as quoted in the reply which my hon. Friend gave to the hon. Member on 17th December last. This is that Concorde's noise levels on certification at the increased weight of 400,000lb. will be 118 EPNdB on take-off and 115 EPNdB on landing. These compare with large jets currently in airline service as follows:

Take-off Landing
VC10 110 112
Boeing 707–320C 114 120
DC8–61 115 116
Boeing 747–200 B/F 108 107
Lockheed 10–11 97 103
DC 10–30 104 107

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