The threshold for supersonic speed is 761 mph in a temperature like 70 degrees.
Supersonic speed is any speed greater than the speed of sound (mach 1) and a speed five times the speed of sound (mach 5?) is referred to as hypersonic speed.
Take the bird onto a supersonic plane and, while the plane is in flight, have the bird fly around inside the plane.
That is called "supersonic".
Very fast like the wind on a summers day
The Concorde is the worlds first supersonic passenger jet. It can travel a speeds up to mach 2.02 (2,140 kilometres per hour)
The kind of plane that have delta are the airplanes that fly very fast, usually over or near the supersonic speed (faster than the speed of sound). The type of airplanes that have the most delta wings are fighters, and some of the bombers such as the XB-70.
The Harrier can't fly supersonic in level flight or fly long distances.
fly to fast,out of gas
Planes fly about 80 to 100 miles per-hour.
commonly it is a jet plane
they go EXTREEEMMEELLLYYY fast. Causing vibrations that cause sound fromt eh motors. bUNNNIES:)
The Spitfire could reach 606 mph .
the concord flew mach3 from what I`ve researched