Occurred on May 28, 2017 / Belgium
Info from Licensor: "I decided to do a flight with no wind and the flight time is normally 2 minutes in Coo without thermals and dynamic wind. So I started at last with one other pilot. After a minute flying the wind had come up with really hard bumps and at that moment I got a really big collapse on the left side when I was making a right turn. My wing was directly in a stall with a hard twist and after that was the crash."