by now most of you have seen the still-frame of the
F-18 and cloud that appeared in sports illustrated:
http://cjrcc.tripod.com/jpg/f18.jpg
and you've also seen the mpeg of the fly-by:
http://cjrcc.tripod.com/mpeg/fs14ss.mpeg
both produce a vapor cloud, and the sports illustrated
blurb suggested that this occurs just as the plane
goes super-sonic. i doubt that the fly-by in the mpeg
was even near super-sonic that close to the ground and
crew.
i live in new jersey, right along the northeast corridor.
at times, i get to see airliners fly overhead every
5 minutes. lately i've begun noticing vapor clouds
forming behind the wings in certain spots in the air.
yesterday, i saw this for sure, as a plane flew directly
overhead and relatively low. i could see a vapor trail,
maybe 10% of the wing chord behind the wing. obviously,
i can't see if it forms above the wing.
what is this, and what is its cause?
Gregory Ciurpita
Lucent Technologies, Bell Laboratories
Room 1N436, Crawford Corner Road, Homdel NJ 07733
(732) 949-5771 [EMAIL PROTECTED]
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