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Old 23rd Jun 2005, 16:50
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Dick Whittingham
 
Join Date: Oct 2000
Location: Bristol
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Now that's interesting! We did get contrails at ground level once at Portage-la-Prairie in Manitoba with a surface OAT of near minus 20ºF - below minus 24ºC - when the first aircraft out blanketed the field with fog.

Dick W
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