HC Deb 25 March 1970 vol 798 c401W
10. Mr. Barnes

asked the President of the Board of Trade if he will modify the arrangements for monitoring aircraft arriving at Heathrow so that a count is kept of the proportion of aircraft arriving in both westerly and easterly directions which are instructed to join the glide slope at a height of less than 2,000 feet; and if he will publish these figures in the quarterly statistics of aircraft noise.

Mr. Goronwy Roberts

The proportion of aircraft approaching to land at Heathrow which are instructed to join the glide path at a height of less than 2,000 feet is of the order of 2 per cent. Most of these are slow, light non-jet aircraft. The cost of the monitoring proposed would, therefore, be disproportionate to any reduction in disturbance that might result.