PPRuNe Forums - View Single Post - Vapour Discharge from 747 at cruise altitude
Old 2nd January 2016 | 08:22
  #10 (permalink)  
kcockayne
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Joined: Oct 2006
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From: jersey
If they are dropping "jerms" then, no problem.
On the other hand, if it's germs that is a different matter !
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