... I will be installing a slightly bigger motor with the same kv (580) . Hopefully it will last a bit longer - if not, time to put in an even bigger motor
I would estimate the speed from the video in the 130 mph range, roughly. I was hoping for more but it's a big airframe.
I am sure glad the lipos and airframe did not go up in smoke (many real Me-163 were lost to fuel explosions).