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Topic: Stealth
Replies: 9   Last Post: Mar 6, 1995 12:25 PM

 Messages: [ Previous | Next ]
 George Yanos Posts: 3 Registered: 12/6/04
Re: Stealth
Posted: Mar 3, 1995 4:11 AM

The bouy thingies are corner reflectors, they reflect the radar
directly back at the source. Exactly the same as the pattern on
plastic bicycle reflectors, except for the size. If you look at
a stelthy aircraft, the interior angles are all greater than 90
degrees. The stealth shape reflects only once rather than the
three that happen inside the corner reflector.

Old time clothing store mirrors were a two dimensional version
of the same thing. They reflected back to the source in two
dimensions, but not up and down. Imagine a clothing mirror with
a reflective floor and ceiling.
----------------------------- Note follows -----------------------------
Subject: Re: Stealth
...
because it has flat surfaces rather than curved ones. Living in
Boeing-land (as Jim King points out) we are exposed to things that fly.
But we are also exposed to things that swim. One every navigational bouey
and nearly every boat that floats around in Puget sound there is a metal
octahedron. Now these are no ordinary octahedra because they do not
contain the usual triangular faces. Instead they contain the 3
diametrical squares. In an xyz-coordinate system with the origin at the
center of the octahedron the squares are on the 3 coordinate planes (xy-
xz- and yz-planes). I once asked what these were for, and was told that
they were for radar. Apparently they show up very sharply on radar.
...

Date Subject Author
2/28/95 Dennis Wallace
3/2/95 James King
3/2/95 John Conway
3/2/95 Steve Means
3/2/95 William T. Webber
3/2/95 J. Frost
3/3/95 George Yanos
3/3/95 Sarah Seastone
3/5/95 Michael Keyton
3/6/95 Bill Marthinsen