smoke
The jet contrails are exaust from the jet engines, which is mostly carbon dioxide and water vapour.
jet plains have a white trail behind because of the moisture for some time. in higher layer of atmosphere where there is hot air to disturb it. this trail is suspeded for a long time
The white trail you see behind an airplane in the sky is called a contrail. It's an artificial cloud made by the exhaust of jet aircraft or from the wingtips.
(noun) The hikers followed the trail through the forest. The criminal knew that the police were on his trail. The jet left a white trail in the sky as it flew overhead. (verb) The man's wife hired a detective to trail her unfaithful husband. Scavenger fish will often trail behind a shark to feed on leftover bits of food.
Ice crystals of frozen exhaust particles.
The duration of a jet's white trail, or contrail, can vary depending on the atmospheric conditions. Typically, a contrail can last anywhere from a few seconds to several minutes. On a clear day with low humidity, a contrail may dissipate quickly, while in high humidity conditions it may linger in the sky for longer.
The stream behind a jet is called a contrail. It is actually water vapor that condenses in the cold.
The white line left behind a plane is called a contrail, short for "condensation trail." It is formed when hot, moist engine exhaust mixes with cold air at high altitudes, causing the water vapor to condense and freeze into ice crystals.
That trail is called a contrail, which is short for "condensation trail." It forms when water vapor from the engine exhaust condenses and freezes into ice crystals in the cold air at high altitudes.
Contrails are the result of both exhaust fumes (jet fuel is similar to diesel fuel) and the effects of extremely hot exhaust gases reacting to the significantly colder atmospheric air.
The white line you see in the sky behind an airplane is water- water vapor. Known as a contrail (for conensation trail), this is visible when the very large amount of water vapor created by burning jet fuel meets the VERY cold air at high altitudes. Just as you can see your breath on a cold day, you can see the "breath" of the airplane engine. Jet aircraft may fly at 30,000 to 40,000 feet of altitude- where the air is -70 degrees F.