HC Deb 03 May 1971 vol 816 c261W
Mr. Tebbit

asked the Secretary of State for Trade and Industry what is the height above Mean Sea Level of the highest obstruction with 15 miles of the projected Foulness airport site.

Mr. Anthony Grant

No precise site has yet been selected. The highest obstruction within 15 nautical miles of the reference point of the Roskill Commission's preferred site is the chimney of Kingsnorth Power Station near Hoo in Kent: the chimney top is 670 feet above mean sea level, but as it is 143 nautical miles from the reference point it would not be regarded as an obstruction to aircraft using an airport on that site.