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The approach surfaces, shown on Fort Frances Airport Zoning Plan No. 59-011 91-60, dated January 14, 1993, are planes abutting each end of the strips associated with runways 12-30 and 03-21 and are described as follows:
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(a) an inclined plane abutting the end of the strip associated with the approach to runway 12 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 1 740 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 336 m from the projected centre line; said imaginary horizontal line being 43.5 m above the elevation at the end of the strip;
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(b) an inclined plane abutting the end of the strip associated with the approach to runway 30 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 above the elevation at the end of the strip;
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(c) an inclined plane abutting the end of the strip associated with the approach to runway 03 having a ratio of 1 m measured vertically to 20 m measured horizontally, rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 890 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 119 m from the projected centre line; said imaginary horizontal line being 44.5 m above the elevation at the end of the strip; and
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(d) an inclined plane abutting the end of the strip associated with the approach to runway 21 having a ratio of 1 m measured vertically to 20 m measured horizontally, rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 858 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 115.8 m from the projected centre line; said imaginary horizontal line being 42.9 m above the elevation at the end of the strip.
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