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What future aircraft will feature carbon fiber wings with folding tips?
Boeing 777, new wings out of carbon fiber composites. U.S. regulators have approved a Buck Rogers makeover of Boeing Co.’s revamped 777 jetliner that will allow the tips of its massive wings to fold upward after landing so the plane can park at existing airport gates.
Why does b777 have no winglets?
For example, Boeing’s hot-selling 777 wide-body airliner does not have winglets. According to Gregg, that’s because the 777 operates from international terminals designed for larger jumbo jets. As a result, Boeing found the performance it was seeking without the need for vertical extensions.
Can the 777X fly with wing tips up?
The aircraft’s design is intriguing: Folding wingtips will let the 777X fit at existing airport gates while still giving the wings the lift they need. The new Boeing 777X features wingtips that fold up.
Is the 777 carbon fiber?
The current 777-200LR/300ER have a 775,000 lb (352 t) MTOW. A new carbon-fiber-reinforced polymer (CFRP) wing with a wingspan of 213 or 225 ft; 2,560 or 2,700 in (65 or 68.6 m) with blended winglets, or up to 233 ft 5 in (71.1 m) with raked wingtip provide for a 10% larger wing area.
How much of 777X is composite?
The current-generation B777s feature composites across nearly 12% of its airframe mass.
Why are Boeing’s 777X wingtips actually work?
Much of the sour publicity surrounding Boeing’s 777X development has focused on delays due to the durability of the aircraft’s GE9X engines. Boeing plays down the hiccup and suggests the type’s folding wingtip system and in-cabin innovations will blow the competition away. Folding wingtips for the B777X are Boeing’s trump card.
How big is the wing on a 777X?
The wing of the 777X is based upon the design of the 787’s wing. It has less of the sweep of the 787 but 10% more surface area (increased from 4,702 to 5,562 sq. ft.). The re-shaping has led to a higher lift-to-drag ratio, which in turn increases usable fuel bulk from 320,863 to 350,410 lb.
What kind of aircraft has folding wingtips?
Folding wingtips are nothing new; in fact, they’ve been in use by military aircraft since WWII. However, this is the first time they’ve been used on a widebody commercial aircraft.
Why did the Boeing 777 not fold up?
The reason the folding wingtip never took off in the past was that Boeing had proposed to fold up around 21’ of the wing. This large section of wing required complex hydraulics in order to operate, making the mechanism heavy, expensive and a burden for maintenance.