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Originally posted by Aloysius the Gaul
reply to post by MarshMallow_Snake
well the only other thing known to affect the formation of contrails is the propulsive efficiency of the engine -
On the left is an Airbus A340 with modern high bypass ration engines, on the Right is a Boeing 707 with older low bypass ration engines.
The paper that discusses this is here if you want teh full technical investigation.
AFAIK apart from that there is nothing - if you are looking for more answers then you are off into speculation - of which chemtrails are the current favourite version.
A contrail was observed to form during ascent first behind the
A340 at 7:28:40, at flight level 333 hft. The B707 continued to
ascend nearby without a contrail (Fig. 2). About 50 s later, at altitude of about 337 hft, a contrail formed also behind the B707 at 7:29:30. The contrails were observed to be forming very suddenly
and persisted thereafter.During descent from flight level 350 hft, the
contrails disappeared first behind the B707 and disappeared shortly
there after behind the A340.The contrails occurred again, apparently
when entering colder or more humid air, and finally disappeared
behind the B707 at flight level 344 hft at 7:40:00 (Fig. 3) and shortly
thereafter behind the A340 at flight level 342 hft at 7:40:39.
Originally posted by ProRipp
reply to post by Aloysius the Gaul
I have no wish to converse with you at this time !
Once again I must decline your bait !
Originally posted by TotallyFEDup88
reply to post by ProudBird
Come on guys. Earth has lasted this long without even contrails and now we do it religiously everyday. FOR WHAT?
Do you like your non cloudy day becoming cloudy with no answers or reason?
Come on guys. Earth has lasted this long without even contrails and now we do it religiously everyday.
Groundhog Day is a holiday celebrated on February 2 in the United States and Canada. According to folklore, if it is cloudy when a groundhog emerges from its burrow on this day then spring will come early. If it is sunny, the groundhog will supposedly see its shadow and retreat back into its burrow, and the winter weather will continue for six more weeks.