: [RCSE] full-size wing vapor
I see as I have just tuned back in, that this thread is still running,
so I will add my two cents once again.
Greg, you are wrong in thinking that planes do not go super sonic during
a low level fly-by in front of a crew, as I have
witnessed this on many occasions
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
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 haven't seen the picture, but if the vapor cloud has a straight
You can also see this happen with prop driven aircraft as well,
both around the propellers and over the wing and is quite dependent
on the amount of moisture in the air. You can see it in a corkscrew
shape as it forms behind the tips of the propellors.
When you compress a parcel of air it will
Here is an explanation that is not technically correct,
or accurate. I learned about this process in a class in
junior college over 20 years ago. What I remember is
sketchy; inaccurate.
Water reaches it's 'dew point' i.e.. forms clouds,
( where the water in the atmosphere condenses and
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