Oh wow, that’s even higher than this one I saw from last year @ 298 MPH for a quadcopter, but I’m not sure if this is the same criteria for the WR or build limitations etc?
I saw that one too which was also incredible. This latest record was from a few days ago https://youtu.be/8p5eZ4ZRkfY?si=hSxTh5BeSyEwzpy8