Been there, done that! I've had a stalled takeoff crash and a tree landing after being caught behind the ridge lift. Don't fly anymore, but some times I still have dreams at night - it is the most freedom I've ever felt and I've done a lot of other stuff besides including singlehanded circumnavigation in a sailboat.
He rushed into getting prone before clearing the terrain -- a common mistake. While trying to push his feet into the harness and adjusting his body there, he kept pushing out on the control bar (can clearly see the glider climbing) until the glider stalled and then dived into a spin and crashed. A second before the stall, he recognized his low airspeed and pulled in hard to the left, which is why the glider spun to the left after stalling. The right-pull after the left-pull was a bit too late, as the glider's airspeed was already too low to respond to that kind of input. It's almost impossible to recover from a low-altitude stall, which is why you should always CLEAR THE TERRAIN FIRST, then do all your prone theatrics.
This launch was wrong on two levels. First, you're NEVER to launch the glider off balance, hence the pre-launch sequence: "hooked-in, balanced, clear!" Second, for no reason, he somehow thought that going prone was more important than flying the glider. And he got duly punished for it.
@@winddriven Hang check is necessary but not enough. You should always do a hook-in check too, to make sure that you're not only hooked in, but your leg loops are tight. Even after a solid hang check, you can still slide out of the harness if the leg loops are loose. Hook-in check is more important than just a simple hang check.
@@kavehvejdani8796 in my limited experience, a hang check involves confirming leg loops are in place too. I agree though, hang check without leg loop check is inadequate.