re: #161 bloodstar

My theory is as follows. The plane is traveling through an air mass that was conductive to creating a contrail, then as it pass through into dryer air, the contrail became much smaller and non noticeable. The last part of this video shows what I’m trying to explain

Throw in some fairly strong winds and you’ve got curvature thrown in.

So how do you explain that for what you are saying to be correct the trail would have to be thousands of miles long?