Originally Posted by
golfyankeesierra
And the “worst worst” outcome will be when it turns out to be exactly the same design as the current gen B777. (Á la B737-trim-wheel-size issue).
The 777X wing-box is definitely not the same as the 777 design:
https://www.flightglobal.com/news/ar...ncy-co-454156/
Shoichiro Tozuka, president of Subaru’s aerospace unit, notes that the aluminum/titanium wing box that the company produces for the 777-8 and -9 is considerably heavier than that it builds for the legacy 777 programme.
He adds that the new wing-box uses considerably more titanium than the previous 777 wing-box. “We use a lot of titanium parts, which we have experience with from 787 center wing-box production.”