What is the result of the long "tail" left by the plane flying in the air?

The result of the condensation of water vapor after the exhaust gas from the aircraft is mixed with the surrounding air.

Also known as aircraft cloud. When an airplane flies in the air, especially in high altitude or cold seasons and regions, striped white clouds sometimes form behind the airplane, which is called condensation tail flow. It is a phenomenon of water vapor condensation caused by the mixture of exhaust gas discharged after aircraft fuel combustion and surrounding cold and humid air.

The aircraft consumes a lot of fuel when flying, and the generated water vapor and some heat are discharged from the aircraft with the exhaust gas, enter the atmosphere, and quickly mix with the surrounding air to form a condensation trail.

There are two main reasons for the formation of condensation marks:

① condensation caused by engine exhaust gas;

(2) condensation caused by the decrease of air pressure.

Extended data:

Aircraft wake has important military value and has been paid attention to by military strategists all over the world since modern times. Aircraft wake has no influence on flight, but it has certain influence on aviation operations.

Jet fighters are prone to wake when flying at a suitable altitude. In aviation operations, the appearance of aircraft wake can easily expose the flight trajectory and position of aircraft. Usually, in order not to expose itself prematurely when an aircraft is performing military tasks, it is necessary to find out the height layer where the aircraft wake appears according to the weather forecast, so as to avoid entering the clouds that can form the wake cloud, so as to achieve the purpose of hiding itself.

On the contrary, sometimes aircraft wake clouds are used to confuse each other and make them flee quickly.

In North America and Western European countries with developed aviation industry, the wake cloud has a direct impact on the coverage of high clouds. A few days ago, it was reported in the Bulletin of the American Meteorological Society that the condensation trail left by the jet in the sky will affect the ground temperature, because the generated cloud trail can be aggregated into clouds. In the past, meteorologists suspected that artificial clouds would affect the climate, but they couldn't prove it.

After the "9 1 1" incident in the United States, all commercial aircraft were grounded for three days and stranded on the ground. Experts from the University of Wisconsin collected the daily maximum and minimum temperature ranges recorded by about 4,000 weather stations in the United States, and compared them with the records of 1977-2000, and found "9 165438+".

The researchers concluded that the tail cloud, like artificial cirrus clouds, reflected the heat of the sun. A large number of tail clouds will cause unconscious weather modification.

Therefore, whether it is an air show or a military use, we should make good use of the wake and never abuse it.

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