questions on condensation trail

From:         Tomasz Natkanski <polo@news.ccit.arizona.edu>
Organization: The University of Arizona
Date:         27 Aug 95 14:37:21 
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Hi,I am just wondering at what temperature (altitude) does the trail start to
develop. I also wonder about something else: the "steam" that comes out of the
wing during the approach stage.... What is it?

Sorry for these untechnical questions,

Tomasz Natkanski

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| Tomasz Natkanski          | University of Arizona | "Wish you were here" |
| polo@seds.lpl.arizona.edu |     Aerospace Eng.    |    - pINK fLOYD      |
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