Nov 19, 2001 · Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high...

Jan 21, 2018 · Water vapor in the exhaust stream condenses and, pushing the local air above its saturation water content, forms a white, frozen mist. Also, particles from partially burnt fuel form condensation cores wich stabilise the contrail and let it grow over time from humidity already present in the air.

Apr 14, 2024 · White smoke coming out of jets is a common phenomenon that occurs during certain situations. It is often a result of condensation and the combustion process in the aircraft’s engine. When an aircraft’s engine starts, it goes through a series of processes to generate the necessary power for flight.

Mar 6, 2024 · 1. Is the white smoke harmful? 2. Why does the white smoke disappear quickly? 3. Does the amount of white smoke depend on the type of jet? 4. Can weather conditions affect the visibility of the white smoke? 5. How does the altitude affect the formation of white smoke? 6. Can the white smoke be used for any practical purposes? 7. Does the color ...

Seeing white streaks across the sky emanating from a jet is normal. These are known as "contrails," since they're just, as the name implies, trails of condensation. Jet fuel combustion...

Oct 24, 2016 · Smoke in jet engines is usually from unburnt or partially burnt fuel (or by water injection). Early jet engines used to create a lot of smoke due to these reasons (and due to lack of environmental regulations).

Mar 30, 2020 · From small single-engine airplanes to large four-engine airplanes, all jet engine airplanes produce white smoke. It doesn’t stay in the sky forever. Rather, the white smoke will gradually dissipate over the course of a few hours.

Jan 17, 2023 · Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath when you puff. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitudes is of much lower vapour pressure and temperature than the exhaust gas.

Sep 17, 2020 · Coloured smoke released from an aircraft consists of dye, trichloroethylene or tetrachloroethylene and diesel oil. The diesel is injected into the hot exhaust from the jet engine. This reaches high temperatures, over 400 degrees centigrade.

All engines that burn petroleum-based fuels (jets, piston engines, etc.) produce steam and CO2 as their exhaust. The CO2 is invisible on exiting the engine and stays that way, but in cold air, the steam condenses into liquid water or ice, forming a white mist that …