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Old 23rd May 2005, 17:45
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Number Cruncher
 
Join Date: Jun 2002
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On a 3 degree glide slope, you will loose 3nm/18,258ft vertically for every 60 nautical miles travelled horizontally. Therefore divide 60 by 18,258, multiply it by 21,000 (25,000-4,000) and you will get 69 miles.
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