|Quoting Bhmbaglock (Reply 18):|
That's the newer ones with raked wingtips. Older standard wings would definitely benefit particularly since 777s tend to fly long routes.
Exactly. Any winglets you see on the 777 would be 772ER and 773 retrofits, not on new planes (though theoretically, they could be on newly delivered 772s in the future, still as a retrofit). B has decided raked tips are their factory option for widebodies.
I had never seen that pic of the 747 with blended winglets. Av Partners said they thought it would be good for cargo ops, so why did they stop the certification process? as for 20 feet, that was an educated guess, but those winglets look to be a bit less than that, maybe 15 feet. But it's hard to tell. The 10 foot winglets on the 757 don't look that tall, so those could be 20 feet and just seem smaller next to the tall 747. Would be easier to tell from a direct side view.
I think the next plane they are looking at certifying, now the the 757 is working out and the 737 line is not incorporating winglets in all NG
models, is the 762 and 763.
|Quoting LeanOfPeak (Reply 21):|
Just to confuse things further, some -100's and -200's have been converted to the stretched upper deck.
It's not just that, as while the SUD was available as a retrofit, the 741 and 2 were also made available in SUD versions, and JAL took 2, IIRC.
Of all the things to worry about... the Wookie has no pants.