[Cobra64]

The video I have of the Boeing 777 wing test showed they got to 154% of design limit load before the wings broke. When the wings let go, it sounds like a cannon going off.

Where we get a copy of the video?

[COEXERJ145]

21st Century Jet

21st Century Jet: The Building of the 777

Both links are to the same video, just different sources. This show was originally a PBS series about building the 777.