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Old 13th September 2012 | 12:53
  #11 (permalink)  
misd-agin
 
Joined: Jan 2006
Posts: 2,205
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From: US
Two minutes? Try up to 7-10 minutes.

Current GS vs. FMC knows future winds and mach profile.

You can see this if you're given a fix a long way away while you're still at slow airspeed. "Say XXXXX estimate". ND will lie, FMC will be more accurate.
Last edited by misd-agin; 13th September 2012 at 12:53.
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