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-   -   Why is it called 77W? (https://www.flyertalk.com/forum/travelbuzz/1675387-why-called-77w.html)

chx1975 Apr 26, 2015 11:29 pm
Why is it called 77W?
 
Why is the 777-300ER called the 77W? Odd.

State of Trance Apr 27, 2015 12:19 am
I was curious myself and stumbled upon this interesting thread on Airliners.net (http://www.airliners.net/aviation-fo....main/3407167/).

Boeing doesn't determine this. The determination is made by IATA who publish an annual "Coding Directory" that incorporates all of this and more.

The "W" and "L" in the 77W and 77L don't stand for anything particular. Similarly the "H" in 73H or numerous other examples. These were selected by a committee who probably used similar logic to what was mentioned here when coming up with them, but officially are just random selections.
It seems that they're entirely arbitrary designations made by the IATA. There's a comprehensive listing here (http://www.airlinecodes.co.uk/arctypes.asp), although it might be out of date since it doesn't show the 77L/77W.

leops1984 Apr 27, 2015 12:33 am
That same thread State of Trance linked mentions that the W is from the raked wingtips the 300ER has.

Annalisa12 Apr 27, 2015 1:48 am
I thought you were talking about pants!

raybolt Apr 27, 2015 3:17 am
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.

dvs7310 Apr 27, 2015 5:26 am
77L made sense to me since its the 777-200LR. Always wondered if W came from World since it's the mega range version of the -300, guess not.

State of Trance Apr 27, 2015 10:55 am
Originally Posted by dvs7310 (Post 24726312)
77L made sense to me since its the 777-200LR. Always wondered if W came from World since it's the mega range version of the -300, guess not.
The 77L is the "Worldliner" though with a ridiculous 17,400km range. I'm really curious now to see what IATA/ICAO logic is behind these model numbers.


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