bwhnter4life
Life Member
Low altitude and high humidity also creates great trails at 7-8+ G'sThe contrails you see at high altitudes are from the engine exhaust. Certain atmospheric conditions make them more visible and last longer. At low altitudes and high humidities, you can get the vapor trails that come off the wings. The ones at low altitude are more prevalent during high lift situations like landing.
Or fuel vaporizing after dumping due to be over weight for landing
Is it though???