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Thread: Prepressurization on take off
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Old 19th September 2010 | 08:37
  #9 (permalink)  
fredgrav
 
Joined: May 2007
Posts: 204
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From: Italy
Hi bio161,
you answered yourself by your first post here ... pre-pressurization (Packs OFF) is accomplished by using ram air and then keeping RAM air inlet and Outlet flap closed all troughtout the takeoff phase.
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