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What happens when planes fly at supersonic speeds?
When an aircraft is flying at supersonic speeds the sound pressure forms a cone whose vertex is at the nose of the plane. An airplane, a bullet, or the tip of a bullwhip can create this effect; they all produce a crack. This pressure change created by the sonic boom can be quite damaging.
How do supersonic flights create sonic boom?
The sonic boom we hear caused by an airplane flying at Mach 1 usually takes the form of a “double boom.” The first boom is caused by the change in air pressure as the nose of the plane reaches Mach 1, and the second boom is caused by the change in pressure that occurs when the tail of the plane passes and air pressure …
At what speed does a sonic boom occur?
about 750 miles per hour
Sonic boom is an impulsive noise similar to thunder. It is caused by an object moving faster than sound — about 750 miles per hour at sea level. An aircraft traveling through the atmosphere continuously produces air-pressure waves similar to the water waves caused by a ship’s bow.
What causes a sonic boom on a supersonic plane?
The nose of a supersonic aircraft pushes ahead of its forward waves. These waves get in the way of the airplane, causing compression which results in a shock wave. Actually, this creates two shocks, one forming as the aircraft passes the front of the wave and then another as it leaves the wave.
How did NASA find out about supersonic flight?
NASA learns about supersonic flight by using small models of aircraft in wind tunnels. Wind tunnels move air over the models as if they were flying. An F/A-18 Hornet aircraft speeds up to supersonic speed. The Hornet is flying through an unusual cloud. This kind of cloud sometimes forms as aircraft break the sound barrier.
Where does the shock wave from a supersonic plane go?
The shock wave generated stays mostly behind the aircraft, and radiates out in a cone. When that shock wave reaches the ground, any person within earshot will hear a double thunder clap. This shock wave will follow the plane as long as it flies at supersonic speeds.
Is it possible to fly at supersonic speed over water?
The Concorde was specifically designed for supersonic flight (specifically, Mach 2) and was very fuel-inefficient at subsonic speeds (less than Mach 1). Unfortunately, it was thus not feasible to fly at supersonic speed over water and then at subsonic speed over land. So, two questions. First, what causes a sonic boom?