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Old 21st Feb 2012, 04:36
  #31 (permalink)  
framer
 
Join Date: Sep 2008
Location: 41S174E
Age: 57
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hmmmm, I think I'm with cosmo on this.

Who is to say that it's not 447 or 436?
Maybe Boeing chose 453 because it's above the limit where they run dry and a nice round number in lbs...
And this.....but my money is on 423kg
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