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Thread: APU Starting - Gulfstream V
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Old 6th May 2004 | 16:37
  #3 (permalink)  
Mach Tuck
 
Joined: Nov 1999
Posts: 63
Likes: 0
From: UK
On the ground both batteries must be on.

In the air, no generators operating - both batteries must be on.

In the air, at least one generator operating - one battery must be off to prevent the already windmilling APU from over-accellerating.
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