Because of the potentially destructive forces of the blast of the supersonic wave, not to mention its noise.
The Harrier can't fly supersonic in level flight or fly long distances.
Yes, it is legal in the US to fly a US, or other flag, from your car. Many people do that.
One supersonic aircraft is the F-15 Eagle. -Supersonic means it can fly faster than Mach 1, the speed of sound. Most fighter jets today are supersonic, in fact many fly more than twice the speed of sound.
It is legal to fly the US flag on a pole in your yard, unless you are somehow doing so in a manner that is disrespectful of it.
Take the bird onto a supersonic plane and, while the plane is in flight, have the bird fly around inside the plane.
No
General Chuck Yeager was the pilot of the Bell X-1, first aircraft to fly supersonic.
Very fast like the wind on a summers day
It is legal to display any flag in the US. This is a matter of freedom of symbolic speech.
It is not common for aircraft to fly at supersonic speeds at air shows due to safety reasons and noise regulations. However, some military demonstration teams may perform maneuvers that simulate supersonic speeds without actually reaching them.
Supersonic aircraft, such as the Concorde, were able to fly faster than the speed of sound. They achieved this by using advanced aerodynamic designs and powerful engines. However, due to high operating costs and noise concerns, supersonic commercial flights are currently limited.
Probably not, but it might fly under the radar.