serious wing flexing

[tigisfat]

http://www.komonews.com/news/boeing/89392307.html

That's pretty dramatic to me.

[Ken Stallings]

Man! Looks like a bird flapping its wings!

Those video of the wing fail tests are always spectacular, as well as a true reassurance for folks seeing the wings flex in turbulence.

Now, if only aluminum didn't fatigue over lifetime but was like steel where getting it close to failure doesn't mean loss of integrity!

Ken