London Airport Zoning Regulations — (a)
Being a surface abutting each end of the strips associated with runways 05-23, 08-26 and 14-32 and more particularly described as follows: (a) a surface abutting the end of the strip associated with runway approach 05 consisting of an inclined plane having a ratio of one (1) foot measured vertically to twenty (20) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip three hundred and twenty-five (325) feet measured vertically above the elevation at the end of the strip and six thousand five hundred (6,500) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being eight hundred (800) feet from the projected centre line, (b) a surface abutting the end of the strip associated with runway approach 08 consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip two hundred (200) feet measured vertically above the elevation at the end of the strip and ten thousand (10,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being two thousand (2,000) feet from the projected centre line, (c) a surface abutting the end of the strip associated with runway approach 14 consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip two hundred (200) feet measured vertically above the elevation at the end of the strip and ten thousand (10,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being two thousand (2,000) feet from the projected centre line, (d) a surface abutting the end of the strip associated with runway approach 23 consisting of an inclined plane having a ratio of one (1) foot measured vertically to twenty (20) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip three hundred and twenty-five (325) feet measured vertically above the elevation at the end of the strip and six thousand five hundred (6,500) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being eight hundred (800) feet from the projected centre line, (e) a surface abutting the end of the strip associated with runway approach 26 consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip two hundred (200) feet measured vertically above the elevation at the end of the strip and ten thousand (10,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being two thousand (2,000) feet from the projected centre line, and (f) a surface abutting the end of the strip associated with runway approach 32 consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip two hundred (200) feet measured vertically above the elevation at the end of the strip and ten thousand (10,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being two thousand (2,000) feet from the projected centre line, which approach surfaces are shown on Department of Transport Plan No. T2868, dated October 1, 1974.