Rumor has it that if you are real nice to it a Bone can do MACH 1. They should try it at 50 feet over their heads. For those who don’t know what a B1 is, imagine a fighter plane the size of a B52....
Yep, the B1-B is CAPABLE of 1.2+ Mach numbers at high altitude, but not nap of the earth.
500’ AGL, full military = “HOLY SH!T” reaction on the ground.