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4th November 2005 | 00:24

#6 (permalink)

flying_elvis

Joined: Sep 2004

Posts: 17

Likes: 0

From: Darkside of the moon

I use 3 x the altitude to lose PLUS 10 Plus 10 percent of the tailwind.

A good wag for rate of descent is 3 x your mach number. ie 3x.80mach = 2400 ft/min rate of descent. At crossover, still use your indicated mach for crosscheck.