The approach surfaces, as shown on sheets 1 to 27, 29 to 35 and 38 to 40 of the zoning plan, are surfaces abutting each end of the strip surfaces associated with runways 06-24 and 12-30. The approach surfaces are described as follows:
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(a) Approach Surface 06 is an imaginary inclined surface abutting the 06 end of Strip Surface 06-24 and ascending from an assigned elevation of 228.30 m, at a ratio of 1 m measured vertically to 60 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 06-24 and distant 3 000 m measured horizontally from the end of Strip Surface 06-24; thence ascending, at a ratio of 1 m measured vertically to 50 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 06-24, being the outer edge of the approach surface, and distant 9 000 m measured horizontally from the end of Strip Surface 06-24; the outer edge having a length of 1 500 m on either side of the projected centre line and an elevation 170 m above the assigned elevation of the 06 end of Strip Surface 06-24;
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(b) Approach Surface 24 is an imaginary inclined surface abutting the 24 end of Strip Surface 06-24 and ascending from an assigned elevation of 230.30 m, at a ratio of 1 m measured vertically to 60 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 06-24 and distant 3 000 m measured horizontally from the end of Strip Surface 06-24; thence, ascending at a ratio of 1 m measured vertically to 50 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 06-24, being the outer edge of the approach surface, and distant 15 000 m measured horizontally from the end of Strip Surface 06-24; the outer edge having a length of 2 400 m on either side of the projected centre line and an elevation 290 m above the assigned elevation of the 24 end of Strip Surface 06-24;
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(c) Approach Surface 12 is an imaginary inclined surface abutting the 12 end of Strip Surface 12-30 and ascending from an assigned elevation of 235.50 m, at a ratio of 1 m measured vertically to 60 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 12-30 and distant 3 000 m measured horizontally from the end of Strip Surface 12-30; thence, ascending at a ratio of 1 m measured vertically to 50 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 12-30, being the outer edge of the approach surface, and distant 15 000 m measured horizontally from the end of Strip Surface 12-30; the outer edge having a length of 2 400 m on either side of the projected centre line and an elevation 290 m above the assigned elevation of the 12 end of Strip Surface 12-30;
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(d) Approach Surface 30 is an imaginary inclined surface abutting the 30 end of Strip Surface 12-30 and ascending from an assigned elevation of 233.30 m, at a ratio of 1 m measured vertically to 60 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 12-30 and distant 3 000 m measured horizontally from the end of Strip Surface 12-30; thence, ascending at a ratio of 1 m measured vertically to 50 m measured horizontally, to an imaginary horizontal line drawn at right angles to the projected centre line of Strip Surface 12-30, being the outer edge of the approach surface, and distant 15 000 m measured horizontally from the end of Strip Surface 12-30; the outer edge having a length of 2 400 m on either side of the projected centre line and an elevation 290 m above the assigned elevation of the 30 end of Strip Surface 12-30.
