I don't know what a foot is any more, but here's a video of the A380 doing its wing flex test: https://www.youtube.com/watch?v=B74_w3Ar9nI https://www.youtube.

I don't know what a foot is any more, but here's a video of the A380 doing its wing flex test: https://www.youtube.com/watch?v=B74_w3Ar9nI https://www.youtube.com/watch?v=B74_w3Ar9nI