bigdave
Novice
Member Since: Sep 2007
26 posts
Posted on:
Jan 9, 2008, 5:29 AM
Post #1 of 1
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FLYING TIPS
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NEVER KNOW WHEN TO DESCEND?
if you are flying a jet i.e. 737 or other such a/c you should use a simple equation. known as the 1 in 3 rule
i.e. if you are cruising at 35,000 ft and want to descend you would use this equation:
35 (remove the 3 zeros) X 3 = 105 therefore you would start your descent at 105nm from the airport.
this is displayed on the GPS whether you are using a VFR flight plan with waypoints or just taking a direct route. with IFR ATC will descend you regardless.
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