I'm not positive, but 800 MPH is supersonic at any altitude (the speed of sound goes down as altitude goes up).I've been watching that F-15 north of the Pack Pegasus tankers, anyone hearing any comms? I wonder what he is up to?
He was at 37,000 going up and down around that altitude and rapid changes in speed, at one time he was close to Mach 1 with almost 800 MPH indicated ground speed! I wonder if he is chasing something.
He went down low for a bit and went off RADAR.
He's at 11,800 now headed back towards Westover ARB where I think he originally came from.
Thanks
Joel