reply to post by dragonridr
Wow, I beg to differ with you on Grid patterns a Contrail will dissapear in 5 minutes. They dont stick around for the next few planes to fly
by.
Some people really try to debunk these dont they?
Originally posted by wonderworld
reply to post by neformore
Yes and also while they are mixed with other chemicals. Notice there are no other clouds in the sky.
Fire does the same thing when it turns blue or purple, just a chemical reaction, using factors involved.
edit grammer
[edit on 31-5-2009 by wonderworld]

Originally posted by wonderworld
reply to post by KAKUSA
I think there on some here from the 70's but some are called contrails. You can be the judge. What do you think?
contrailscience.com...
Originally posted by wonderworld
reply to post by dragonridr
Flight Explorer does not show altitudes for military jets, but, according to the FAA, tankers and transports usually transit continental airspace at around 30,000 feet to ensure safe separation from airliners flying between 35,000 and 39,000 feet.
Military "heavies" flying below 30,000 feet should not leave contrails at all.

Originally posted by wonderworld
Maybe there is another explanation to that single spiraling cloud. It . Defies the law of nature, in my opinion.