what NWSRG refers to may be some counterarguments from a-bus, they're not happy with so much composites (45%, 35% more than 777), an "untested" material being used....
boeing claims composites have 30% higher stw ratio than aluminum in a lab, translating into 15 in real life.
weight wise, they say it's 10,000 lbs less than had al been used (take that haneda landing fees
no wonder ana was launch customer).
the biggest thing is supposed to be corrosion - nonexistent - that is supposed to save 30 percent on maintenanace over lifetime, really starting to make a diff after 12 years, especially around galleys and lavs.
and it was the composites that enabled 6,000 ft cabin instead of 8, also 30% larger windons (11x19 inches)
still, it's gonna be a cattle-hauler in economy !
