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Being an imaginary surface abutting each end of the strip consisting of an inclined plane having a ratio of one and sixty-six hundredths (1.66) feet measured vertically to one hundred (100) feet measured horizontally rising to an imaginary horizontal line drawn parallel to and ten thousand (10,000) feet measured horizontally from, each end of the strip, thence the approach surface shall rise at a ratio of two (2) feet measured vertically to one hundred (100) feet measured horizontally to an imaginary horizontal line drawn parallel to, and fifty thousand (50,000) feet measured horizontally from, each end of the strip and located at a height of nine hundred and sixty-six (966) feet above the elevation at each end of the strip, the outer ends of each surface being eight thousand (8,000) feet on each side of the projected centreline as shown on Department of Transport Plans S-424A, B, C, D, E and F dated September 2, 1977.
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