So what are chem trails?
Well "Chem trails" don't exist. They are a conspiracy theory built around the mis-identification of contrails, perfectly natural and ordinary lines of water vapor and ice crystals left behind due to moisture, pressure, and temperature differences caused when an aircraft travels through certain air conditions.
It's functionally no different from seeing your breathe on a chilly day.
Commercial air craft don't leave them. I haven't seen fighter jets leave them, what type of air craft leaves chem trails?
None because they don't exist. Most any aircraft can cause contrails if the conditions are corrects.
