Winner - Flight inner-workings contest
Chris Dunlap
dunlap at bigboote.csd.sgi.com
Tue Jun 25 05:10:12 AEST 1991
Frank Nagy of FermiLab came in with the first description judged to be
"complete and correct" by my judges.
Here is his description:
>I hope this is satisfactory (I still think like a physicist):
>
> Since the plane is flying, the altitude must be a positive
> value, let us call this X. This is measured between the
> plane's ventral surface (here I hope I'm using ventral
> correctly as being the plane's "bottom" surface - for instance
> before taking off the ventral surface is nearest the ground
> (except for the landing gear ;-) in normal attitude). The
> pilot's eyes are then Y feet above the ventral surface; or
> X+Y feet above the ground in normal attitude.
>
> Now, when flying inverted, the ventral surface of the plane
> is *furthest* from the ground. Thus inverted flight with
> altitude X has the pilot's eyes at X-Y (remember, inverted
> flight) feet above the ground. Since the algorithm for
> "I've crashed into the ground and can't get up" is to just
> examine the X value, judicious flying in inverted position
> will make X positive but have X-Y negative (below ground
> level) which supposedly leads to rather interesing displays.
> (I can't say since I have a tendency to get into the X<0
> regime too easily.)
>
Congratulations to Frank. As soon as he gets me his address I'll be
sending out his shirt...
chris
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