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Being a surface abutting each end of the strips associated with the runways designated 04-22 and 11-29, 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 each strip one thousand (1,000) feet above the elevation at the end of each strip measured vertically and fifty thousand (50,000) feet from the end of each strip measured horizontally, the outer ends of each imaginary horizontal line being eight thousand (8,000) feet from each projected centre line, which approach surfaces are shown on Department of Transport Plans Nos. T2863A and T2863B, dated April 1, 1974.
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