I just asked a question about the trail behind a plane high in the air?

Question

My follup Question is how come you do not see that same trail at say Midway Airport when the tempture is at 15 below with a wind chill of35

Answer 1

There are 2-types of trails behind jet airplanes these days, 1 is a contrail. A Contrail is the short white line in the sky, left by the condensation from the airplanes exhaust , it is right behind the jets tail and usually about as long as Say 10- jet lengths. It evaporates from the end of the contrail and goes away rather quickly as the jet passes by.2 is a Chem Trail, A chemtrail is the long stream of chemicals that looks like exhaust from the aircraft, but it doesn't go away after it passes by. It get wider as the day goes by and continues to get wider and wider, it can go in length from almost one horizon to the other. After a while the Chemtrailends end up clouding up the sky and three or 4 passes will take up the whole of the air space above. Chemtrails contain Barium and other toxic chemicals that are mean't to be ingested by the countries citizens, to slowly break down our will, and make us indifferent to what's going around us..

Answer 2

You may notice that on a nice clear cloudless day you not only don't see those high altitude vapor trails, you can't even see the many jets flying over. At other times the sky looks like they are playing X and O's. It all has to do with temp, dew point, and other factors. What you see are literally "vapor" trails that are "clouds" coming off the engines under certain conditions. There are also times when you will see (if you are in the air in another plane) contrails coming off the wing tips of a near by plane as well as the vapor trails from it's engines.

Answer 3

because at the airport, the plane is not as high up as other times. thts why it leaves a trail, because i think tht the higher u go, the air in the atmosphere gets not only supercold but also less dense. therefore the exhaust fumes from an airplane (which are denser than the surrounding air) instantly freeze when they come in contact with such air. the result is a long trail of ice droplets tht eventually melt and become moisture.

Answer 4

These are called CONTRAILS........................................Contrails are condensation trails (sometimes vapour trails): artificial cirrus clouds made by the exhaust of aircraft engines or wingtip vortices which precipitate a stream of tiny ice crystals in moist, frigid upper air. Contrary to appearances, they are not pollution as such................more????????????........go to the site below...