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Thread: Passenger Aircraft Windows
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Old 1st June 2006 | 05:54
  #7 (permalink)  
Bolty McBolt
 
Joined: Jul 2005
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From: OZ
The hole is there to make sure all pressurising loads are on the outer pane, as the inner pane is there in case of outer pane failure and does not take any load until then.
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