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Video of B787 wing flex
A video from cabin showing the B787 wing flex during spoiler deployment. (www.flickr.com) More...Sort type: [Top] [Newest]
While landing in Bangkok in a China Airways old 707 the pilot foolishly let down thru a Charlie Bravo. Due to turbulance people were screaming, barfing and doing a lot of praying. I told my wife "Don't look". In addition to turbulance the plane was thrown from one severe yaw position to the other. I foolishly decided to look outside only to see the wings flapping like a bird. What really startled me were the engines literally whipping up and down. We landed hard several times on touch down. Next day in Manila, same carrier and I suspect same plane, an outboard engine fell off on touch down, with loss of life. I wish you sky jockeys wouldn't do that to us! flyerh
I guess there are some in every crowd and that is definitely not the norm. That said, I wasn't there, and it may have been a necessity to get down, as far as wx goes. You get bit in the butt sometimes and gotta do what you gotta do, but it ain't anuthing you want to do on a regular basis, at least I wouln't want to do it..(from a retired 707 driver)
What was he doing with the camera turned on, or don't the rules apply to him?
For all you "Wing Flex" enthusiasts out there...here's an F.Y.I.....
The 787 Wing Flex Test increases a load in 10% increments up to 100% load, then it's increased to 150% limit and again until it destructs beyond the 150% limit. The 787 exceeded all expectations, as required by the FAA. All Commercial AC must withstand at least 3 seconds of 150% expected loads on all major structures. The wings would deflect a full 26 feet at 150%. In comparision, the 777 wings deflected 24 feet at 154% max load before they snapped!
The 787 Wing Flex Test increases a load in 10% increments up to 100% load, then it's increased to 150% limit and again until it destructs beyond the 150% limit. The 787 exceeded all expectations, as required by the FAA. All Commercial AC must withstand at least 3 seconds of 150% expected loads on all major structures. The wings would deflect a full 26 feet at 150%. In comparision, the 777 wings deflected 24 feet at 154% max load before they snapped!
It exceeded expectations AFTER failing and being modified.
Isn't that the purpose of all tests of an aircraft? If it fails...modify it until it over-exceeds! What matters here is the end result of the modification. A well built aircraft.
The 777 only took once, difference between sticking to what you know and trying to re-invent the wheel.
That's what I thought. It ain't always gonna work right the first time.
Might interest a few of you? It's about a 747 crash where the wing-flex got out-of-control after a lightning strike caused an explosion in a wing fueltank.