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The approach surfaces, shown on Spence Bay Airport Zoning Plan No. E.2739 dated July 25, 1989, are surfaces abutting each end of the strip associated with the runway designated 151-331, and are described as follows:
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(a) a surface abutting the end of the strip associated with runway approach 151 consisting of an inclined plane having a ratio of 1 m measured vertically to 30 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 2 500 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 295.0 m from the projected centre line; said imaginary horizontal line being 83.3 m 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 331 consisting of an inclined plane having a ratio of 1 m measured vertically to 30 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 2 500 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 295.0 m from the projected centre line; said imaginary horizontal line being 83.3 m above the elevation at the end of the strip.
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