Here is a clip of a guy breaking a Moyes Litespeed rx4 with racing wires.
Estimated speed: 160 km/hr = 100 mph
Estimated G-force: 7+
https://player.vimeo.com/video/173252167?title=0&byline=0&portrait=0"%20width="1280"%20height="720"%20frameborder="0"%20webkitallowfullscreen%20mozallowfullscreen%20allowfullscreen
Hang glider comments: "Wow. That guy must have been pulling 5 Gs!"
Paraglider comments: "See? Hang gliders collapse, too!"