How much can Boeing wings bend?
How much can Boeing wings bend? Subjecting the Boeing 787's wing flexibility to near extremes, Boeing flexed the Dreamliner's wings upward by approximately 25 feet (7.6 meters) during the test.
Why are 787 wings so flexible?
The wings of the 787 are flexible due to the use of composite materials such as CFRP or carbon fiber-reinforced polymer (CFRP). Boeing claims that this composite material makes up approximately 50% of the wings on the Dreamliner.
Why 787 has no winglets?
Boeing 787 has a feature known as 'raked wing. ' They are much more efficient (2-3%) than winglets in reducing induced drag. Also the feature increases the Aspect ratio of the wing much more better than the conventional winglets.
Why is 787 so smooth?
Smooth Wing Technology The 787's simple pivot trailing edge flaps allow for much smaller flap track fairings than on conventional aircraft. This gives the airplane highly efficient lift-to-drag characteristics that reduce fuel consumption and costs.
Why are A350 wings curved?
A better design. Winging it: The curves at the end of modern airplane wings are all about efficiency. As air flows around a plane's wings, it generates high pressure on the bottom surface and low pressure on the top one, which creates lift.
Why are A380 wings curved?
The 'curve' near the root means that the landing gear in the wings could be as short as possible while being long enough to prevent a tail strike during rotation and allowing the spar to pass below the floor. The shape also allows enough ground clearance for the inboard engines.
How far can a 747 wing flex?
The video shows a KLM Boeing 747 jet's wings jiggling with turbulence. The caption reads: Airplane wings aren't some rigid chunks of metal: in fact, they probably have a bit more flex than you'd expect. This is the behavior of a Boeing 747's wing in a turbulence. It can move 6m up and down safely.
Why is Boeing 787 so quiet?
To combat the sound of jet-blast from the rear of the engine, Boeing, General Electric, and NASA developed serrated edges called chevrons for the back of the nacelle and the engine exhaust nozzle. The chevrons reduce jet blast noise by controlling the way the air mixes after passing through and around the engine.
Why 787 is better than A350?
The Bottom Line: The Airbus A350-900 and Boeing 787-9 are very similar aircraft, suited for similar missions. As one would expect, the slightly larger A350-900 has a seat-mile cost advantage, while the 787-9 has an advantage in cost per block hour. These aircraft are competitive, and nearly tie in economic performance.