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Old Jan 18, 2012 | 9:38 pm
  #25  
garykung
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Originally Posted by jumbojet19920711
As to why UA 744s never seem to divert, I believe it is due to weight. UA doesn't have PTVs in Y, which makes the planes that much lighter (PTV boxes and cables take up a fair bit of weight). UA 744s also have PW engines, which are slightly more fuel efficient than the RR engines that CX has on most of their 744s.
Yes - but UA has something more (which may balance out PTV) - Mail.
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