HC Deb 22 March 1989 vol 149 cc617-8W
Mr. Kirkwood

To ask the Secretary of State for Defence if the policy of purchasing dwellings subjected to noise levels from military aircraft of 125 db (A) or more, set out in his reply to the hon. Member for Roxburgh and Berwickshire on 3 February,Official Report, columns 447–48, applies to dwellings not located in the vicinity of a military airfield.

Mr. Neubert

No.

Mr. Kirkwood

To ask the Secretary of State for Defence if he will publish in theOfficial Report the heights, speeds and aircraft types which were found to produce noise levels of 125 db (A) or more in noise test measurements during Exercise Bedlam.

Mr. Neubert

The information is as follows:

Aircraft Speed Power Setting Height (ft) Average decibel level at ground level
Phantom 507 knots Full Reheat 315 126dB (A)
(583 mph)
Tornado 433 knots Full Reheat 250 (126db (A)
(498 mph)
Jaguar 462 knots 100 per cent. 250 126dB (A)
(531 mph) + reheat
Lightning 495 knots Full Reheat 250 126db (A)
(569 mph)
Victor 265 knots 103 per cent. 200 127dB (A)
(305 mph)
Vulcan 256 knots 100 per cent. 250 127dB (A)
(294 mph)
Aircraft Speed Power Setting Height (ft) Average decibel level at ground level
VC10 298 knots Full Power 250 125dB (A)
(343 mph)

The hon. Member will wish to note that the above figures are not representative of general military low flying in the United Kingdom arid I would refer him to my predecessor's reply of 13 June 1988 to the hon. Member for Meirionnydd Nant Conwy (Dr. Thomas) at column 70.