refractivity-height distribution

error-function grading

When an aircraft which has been given clearance to land is completing its approach using atmospheric pressure at aerodrome elevation (QFE), the vertical position of the aircraft shall be expressed in terms of height above aerodrome elevation during that portion of its flight for which QFE may be used, except that it shall be expressed in terms of height above runway threshold elevation:

However, a larger number of robust, independent data, including additional analysis of how much driving takes place when the engine transmission and battery are being employed at their appropriate operating temperature and what proportion of driving time takes place when more pronounced downhill gradients are being driven when the coasting function is turned off would be necessary to alleviate the uncertainties associated with the CO2 savings from the innovative technology ...[+++].

(a) a surface abutting the end of the strip associated with runway approach 12L consisting of an inclined plane having a ratio of 1 m measured vertically to 60 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 3 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 600 m from the projected centre line; said imaginary horizontal line being 50 m above the elevation at the end of the strip; thence the approach surface shall slope upward at a ratio of 1 m measured vertically to 50 m measured horiz ...[+++]ontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 15 000 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; said imaginary horizontal line being 290 m above the elevation at the end of the strip;

(b) a surface abutting the end of the strip associated with runway approach 30R consisting of an inclined plane having a ratio of 1 m measured vertically to 60 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 3 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 600 m from the projected centre line; said imaginary horizontal line being 50 m above the elevation at the end of the strip; thence the approach surface shall slope upward at a ratio of 1 m measured vertically to 50 m measured horiz ...[+++]ontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 15 000 m measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; said imaginary horizontal line being 290 m above the elevation at the end of the strip;