Message posted by gary on November 20, 2002 at 23:46:36 PST:
While hiking in the hills today, I noticed a twin engine jet flying overhead that had the same puffs in the contrail, but only when the plane was in a turn. The donuts contrail was on the inside turn. I wonder if when a jet makes a slow turn that they throttle down one of the engines a bit and perhaps that leads to the puffs in the contrail. Or perhaps there is a funny vortex during a turn on one side of the plane.
In Reply to: Similar contrails photographed in England. posted by Scott on November 19, 2002 at 16:26:33 PST:
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