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Thread: EGPWS altitude reference
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Old 1st July 2014 | 21:09
  #14 (permalink)  
underfire
 
Joined: Aug 2013
Posts: 30
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From: PA
Okay, I understand..

Read right thru aircraft vs system, and systems before Geometric Altitude.

So while the EGPWS had its own GPS, the aircraft did not...got it.

As SafetyP notes, the peaks/obstacle database is incredibly valuable...
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