Why supersonic jets are not for civilian use? Is it a technical secret?

Supersonic passenger aircraft is nothing new, nor is it a secret. As early as 1960s, the Soviet Union, Britain and France successively developed Tu 144 and Concorde. At that time, people generally thought that the era of subsonic passenger aircraft was coming to an end, so they vigorously developed supersonic passenger aircraft, but practice proved that this view was completely wrong.

Except for the Soviet map 144, which was stopped due to poor reliability, the Concorde supersonic passenger plane jointly developed by Britain and France has been in operation for nearly 30 years, but only 20 were sold, and the last Concorde plane was retired in 2003. Or because the market did not accept it, the supersonic plane was finally escaped. The latest passenger planes are still subsonic, such as Boeing's latest Boeing 787 and Airbus A350.

Supersonic passenger aircraft is an important achievement in the history of human aviation. The transatlantic route pioneered by Concorde can fly from Paris to new york in just four hours. However, the supersonic passenger plane still can't open the situation, and the operating Concorde is losing money every year. The main reasons are:

1, the cost of supersonic airliner is too high. The F 1 17 mentioned by the landlord is only $45 million, which is an old story. Today, an F- 16 can buy 70 million to 80 million dollars. The unit price of an Airbus A380 is $300 million, and the unit price of a Boeing 787 is estimated to exceed $65.438+$500 million. The price of supersonic passenger aircraft will never be lower than these two kinds of aircraft. There are only a few people who own tens of billions of property in the world, and even fewer people are willing to buy it. To this end, users spend hundreds of millions of dollars, which is obviously not worth developing supersonic passenger aircraft.

2. The fuel consumption of supersonic passenger plane is too high. Since the oil crisis in the 1970s, oil prices have soared, and in recent years, oil prices have been ridiculously high. Therefore, all aircraft are developing towards fuel economy. Whether flying in the sky, running on the ground or swimming in the water, as long as it is a machine that burns oil, its users are very concerned about fuel consumption. Airlines are also most concerned about fuel consumption. The flag of Boeing's latest Boeing 787 aircraft is lower fuel consumption, and Airbus A380 is a means to promote the lowest cost per passenger.

3. Noise problem of supersonic passenger plane. The noise of supersonic aircraft is very serious. For example, Concorde is not allowed to enter the country because of its loud noise. The transatlantic Concorde can only fly at supersonic speed over the Atlantic Ocean, and it will not fly at supersonic speed over the ground.

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