Information needed

Date:         20 Aug 97 02:38:35 
From:         "Marc Guimond" <sunrider@odyssee.net>
Organization: Microtec Internet, Inc.
Followups:    1 2 3
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I was just recently told by uncertain sources that airplanes in the Boeing
747-400 family where able to fly inverted.  I would like to know if it is
truely possible both theoretically and practically for such a massive craft
to do so.  If you can prove that such a maneuver is indeed possible (or
though to be possible), or if it has already been done, I would like to
know.

If you answer this message, please try to give me detailed information and,
if possible, links to pertinent documents on the web.