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At What Temp Do Contrails Form?  
User currently offline777DadandJr From United States of America, joined Feb 2005, 1516 posts, RR: 13
Posted (7 years 6 months 2 weeks 5 days 14 hours ago) and read 2586 times:

Hi all,
I was noticing the other day all the contrails in the sky over my house. I live in York Pa, about 90 miles northwest of PHL, and about 150 miles southwest of EWR. I am also within 200 miles of BWI, JFK, IAD, and DCA, so I tend to see lots on contrails. York Pa is major fly over country!
Usually in the morning, on my way to work, the sky is totally streaked with contrails during the westbound morning rush. Made me wonder about when contrails form.
About what tempature do they form? Also, if I look at some of them, I can see what seems to be maybe 20 miles long, and some start and stop. Is that cause by a warm updraft? I dry patch of air?

Thanks in advance!

Russ


My glass is neither 1/2 empty nor 1/2 full, rather, the glass itself is twice as big as it should be.
2 replies: All unread, jump to last
 
User currently offlineElectech6299 From United States of America, joined Aug 2005, 616 posts, RR: 3
Reply 1, posted (7 years 6 months 2 weeks 5 days 11 hours ago) and read 2489 times:

The topic han be found discussed in detail in this thread:
http://www.airliners.net/discussions/tech_ops/read.main/55508

Hope this helps!


Send not to know for whom the bell tolls...it tolls for thee
User currently offline777DadandJr From United States of America, joined Feb 2005, 1516 posts, RR: 13
Reply 2, posted (7 years 6 months 2 weeks 4 days 16 hours ago) and read 2424 times:

Thanks Electech,
That was very helpful indeed!

Russ


My glass is neither 1/2 empty nor 1/2 full, rather, the glass itself is twice as big as it should be.
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