"Tetsuji Rai" wrote...
Airspeed limitation below 10000ft is usually 250kts unless you have been
authorized by the Administrator. However I guess it's a bit slow for
military fighters. So I am curious how fast military fighters fly in the
real world. I guess it's very dangerous military aircraft fly much fast
among civilian planes.

Many of them fly 250 knots below 10,000'. Some are authorized to fly as fast as
300.

A heavy 747 climbs out at 282 knots...