Message posted by FreebirdUK on November 09, 2003 at 3:50:56 PST:
I live next to Heathrow airport in the UK, and in clear weather see many dozens of contrails from aircraft overflying each day. Often they look like the so called 'Doughnut-on-a-rope' type, which is purely due to the atmospheric conditions an wingtip vortices. FreebirdUK
In Reply to: Doughnut-On-A-Rope Contrail 8 Nov 2003 posted by Wildweasel on November 08, 2003 at 19:04:38 PST:
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