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The approach surfaces, shown on Transport Canada Fort Smith Zoning Plan dated August 30, 1978, are surfaces abutting each end of the strips associated with the runways designated 01-19 and 11-29 and are described as follows:
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(a) a surface abutting the end of the strip associated with runway approach 01 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, 76.2 m measured vertically above the elevation at the end of the strip and 3 048 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 381 m from the projected centre line;
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(b) a surface abutting the end of the strip associated with runway approach 19 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, 76.2 m measured vertically above the elevation at the end of the strip and 3 048 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 381 m from the projected centre line;
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(c) a surface abutting the end of the strip associated with runway approach 11 consisting of an inclined plane 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, 304.8 m measured vertically above the elevation at the end of the strip and 15 240 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 2 438.4 m from the projected centre line;
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(d) a surface abutting the end of the strip associated with runway approach 29 consisting of an inclined plane 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, 304.8 m measured vertically above the elevation at the end of the strip and 15 240 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 2 438.4 m from the projected centre line.
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