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Zaphod58
Long before jets actually. The first persistent contrail was identified in 1915.
The first recorded sighting of a contrail likely occurred in southern Tirol in the Italian Alps in 1915 when somebody named Ettenreich spotted “the condensation of a cumulus stripe from the exhaust gases of an aircraft”; the stripe stayed around for a while.
What would be good is if someone could get a VHS and a DVD copy and report if there is any difference.
juspassinthru
Zaphod58
Long before jets actually. The first persistent contrail was identified in 1915.
When, where, who, what and why?
I've seen enough original WW2 footage that tells me long-lasting contrails are real. In my ignorance, I'm guessing those piston-engined aircraft were running rich and dumping lots of unburnt fuel (reacting with cold temps).
That phenomena is totally different than watching jet aircraft do tic-tac-toe in a clear blue sky and then watch the sky turn a silver white haze in an hour or two. I watched this exact thing several weeks ago in SE Alabama.
Zaphod58
reply to post by Aleister
Long before jets actually. The first persistent contrail was identified in 1915.
Retikx
www.liveleak.com...
Recently saw this, at the 48 second mark. Is this normal for ww2 bombers?