What is a Supersonic Flight?

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Supersonic flight means flying faster than the speed of sound. Aircrafts do not usually fly faster than sound. The first supersonic aircraft flew in 1940s. The speed of sound is about 1200 km/hour at the sea level and higher up in the air, it slows down to 950 km/hour. When an aircraft is flying at the speed of sound or faster, it arrives at any point in the air before its own sound can get there. The sound that the aircraft has been making on its way, suddenly arrives at once. The bands of pressure in the sound waves all travel together to give a very strong wave of air pressure known as sonic boom which may badly shock the plane. Supersonic aircrafts are designed specially to overcome this shock by building planes, such as concord with long, sharp nose and thin swept-back wings. It can carry passengers at over twice the speed of sound.

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