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Video: Boeing 787 Crosswind Testing
Of the 1,800-plus hours Boeing 787 test pilots have flown so far, few are as dramatic as the recent trip to Iceland for crosswind testing. The 787 team flew to Keflavik airport after weather forecasts indicated conditions most pilots try to avoid — wind across the runway. (www.wired.com) Más...Sort type: [Top] [Newest]
Recent testing of the wings on the 787 were flexed upward “approximately 25 feet” which equates to 150 percent of the most extreme forces the airplane is ever expected to encounter during normal operation. I think these numbers far exceed the operating requirements. So, the next time you fly in a 787 I think you'll find the ride (turbulance) and cross winds handling will be improved.
Interesting thought - wing flex as a shock absorber? I don't know. The heavier aircraft usually `ride' better in gusty conditions - more mass, therefore less acceleration for the force applied. It would be interesting to compare the 787 to another aircraft landing in the same conditions at around the same weight and at the same percentage of the max landing weight.
I think wing flex is a good situation and does add some stability to the aircraft in high cross winds. Plus it may act like a shock absorber in side gusts. I'm not an areonautical engineer but it logically makes sense to me. What do you thik?
Great video! That wing flex is amazing - touching/dragging a wing tip in gusty crosswind conditions will not be much of a consideration with this airplane.(!)
I wonder how much stability is added with that kind of dihedral being added by the wings flexing?
I wonder how much stability is added with that kind of dihedral being added by the wings flexing?
SKILLS
Having watching a number of them land and take off at Boeing Field, I am impressed with the Dreamliner! Most graceful bird in the sky! As for the cross wind landingds, keep in mind that half or more were automated, to make things even more fun. At least that I what I read somewhere.