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Old Apr 27, 2015 | 3:17 am
  #5  
raybolt
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Join Date: Apr 2005
Location: NYC/ISP
Programs: UA-Plat, United Club
Posts: 486
Why is it called 77W?
I think B73H comes from the 800W (H being 8th letter), same as the soon to be B78J and A35J (-10/100/1000 or whatever it is). B77W and B77L are actual ICAO designators (used by ATC), and B73W or B73H are just used by the airlines.
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