Where is BV?
He kills the fukkin board and then just leaves.
Where is the BV?
With his Stormfont buddies?
This is possible, especially at high altitude and heading W to E.
Speed here has to be measured as ground speed.
The airliner flies at 630 mph, it flies with a tailwind of a 120mph - which is possible in the jet stream. Measured from an observer on the ground that would be 750mph - Mach 1 is 747mph at sea level.