History of the Concorde

The concept of developing supersonic aircraft started during the 1950 already, between Soviet union, United States, United Kingdom and France. After careful planning for years between the French Aviation and the British Bristol Aeroplane Company, the Concord entered the supersonic transport service in March 1969 and was introduced a supersonic turbojet-powered passenger airliner in January 1996. After 27 year and only 20 Concord’s built it was retired in November 2003.
A sonic boom of magnitude is inseparable from any supersonic aircraft’s flight and this was also the case in the Concord. Shock waves will start reaching the ground from Mach 1.15 which is about 850 mph and the sonic boom is created. This sound is heard across a width of 50 miles and the intensity of the sound will be highest directly under the aircraft’s flight path and dying away towards the edges.
It is because of the suddenness that a sonic boom has such a startling effect and worse for those who have never heard a sonic boom before. The Concorde’s sonic boom never caused any harm with its overpressure of approximately 161 pounds per square foot, neither to animals, humans or buildings in good state of repair. Researchers have proven that shock waves do not have any negative effect on any marine lives.
With the Concorde being a supersonic aircraft it never caused a sonic boom in vicinities of airports, but only after reaching approximately 100 miles from take-off point it will reach the speed needed to start creating a sonic boom. At the end of the Concorde’s journey it will start deceleration approximately 100 miles from its landing point also in order to eliminate shock waves in vicinity of the airport. Careful flight plans were drawn to place the sonic boom in very sparsely populated areas or over the oceans.

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