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The approach surfaces, shown on Chatham Airport Zoning Plan No. 36-011 86-08, Sheets 4, 5 and 6, dated January 28, 1987, are surfaces abutting each end of the strip associated with the runway designated 05-23 and are described as follows:
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(a) a surface abutting the end of the strip associated with runway approach 05 consisting of an inclined plane having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 1 800 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 345 m from the projected centre line; said imaginary horizontal line being 45 m measured vertically above the elevation at the end of the strip; and
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(b) a surface abutting the end of the strip associated with runway approach 23 consisting of an inclined plane having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 1 792 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 343.8 m from the projected centre line; said imaginary horizontal line being 44.8 m measured vertically above the elevation at the end of the strip.
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