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The approach surfaces, shown on Rankin Inlet Airport Zoning Plan No. E.2847, dated October 16, 1990, are planes abutting each end of the strip associated with runway 129-309 and are described as follows:
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(a) an inclined plane abutting the end of the strip associated with runway approach 129 having a ratio of 1 m measured vertically to 50 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 15 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; said imaginary horizontal line being 300 m above the elevation at the end of the strip; and
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(b) an inclined plane abutting the end of the strip associated with runway approach 309 having a ratio of 1 m measured vertically to 50 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 15 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; said imaginary horizontal line being 300 m above the elevation at the end of the strip.
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