To all the chemtrail fags out there, I worked on Airplanes for 12 years now, and there is not, I repeat Not, any such part of the airplane that has a spot on the engine or the wing that makes chemicals come out to pollute the sky. If you want answers to where the chemicals come from, you will have to dig into what they use to make JET-A. That is where the trails come from.
JET-A is almost a diesel/kerosene type fuel. It is however drier than regular diesel, without as many ingredients, you could even run JET-A in your diesel truck if you wanted. burns the same. The main reason for chemtrails is when you get high enough in the atmosphere, you have the mixing of very thin water vapors, which when passing thru a turbine engine, gets turned into vapor.