High speed video of the Go Pro mounted to the trebuchet 

I offer this with very little editing. I was doing some testing of our trebuchet this year prior to the competition and I decided to mount the Go Pro to the trebuchet itself in different locations and fil it at 240FPS. In one of the videos, if you look carefully, you'll actually notice that the sling came untied from the arm and went flying as it's own projectile.