Linflas
Lifer
Originally posted by: Scarpozzi
It's dependent on altitude and contrast of temp of the exhaust and air at a given altitude. Increased moisture can cause them at lower altitudes....when there is moisture in the air, the contrails will seem more fluffy...if it's drier, they'll be a lot smaller/finer.Originally posted by: jtvang125
Why do some planes make it while others don't? Is it dependent on altitude and weather?
Yep, IIRC depending on the above conditions there is a layer in the atmosphere where they will form.