The speed of sound has nothing to do with jet airplanes. About 750 mph, and it was that before jets, and even the Acropolis were built.
The first American pilot to exceed the speed of sound in an airplane was Chuck Yeager.
Speed of Sound = 343.14 m/s 4 miles = 6437 metres 6437/343.14 = 18.76 seconds
The speed of sound does not travel. In the event that an airplane's airspeed is below Mach-1, the speed of sound is faster than the speed of the airplane. On the occasion and at the moment when the true indicated airspeed of an airship or an airplane is in excess of Mach-1, the airplane is at that time traveling faster than the speed of sound.
Bell X-1 named, "Glamorous Glennis".
The average speed if an airplane travels 1364 miles in 5.5 hours is 248 miles/hr.
Supersonic.
It is going faster than the speed of sound.
Air speed or ground speed?
153 mph
7.5 miles per hour
240 miles is always 240 miles, no matter where you are.But, if you are asking how long it takes to travel 240 miles on an airplane, then it depends on the speed (or perhaps the type) of the airplane.
the bell x-1 is the first piloted airplane to fly faster than sound.