Re: I Invented Stealth Shapes

On Sep 2, 11:14�pm, STEALTHMAN <stealth...@iglou.com> wrote:

I Invented Stealth Shapes

� � � In 1974 I filed a "Disclosure Document" in the US Patent
Office to attempt patent protection on an airfoil that makes
possible a very narrow lifting body, for low speed, medium
drag, high lift, aircraft, narrow enough to legally drive on
existing highways.

� � �By early in 1976 I had filed a patent application for
that airfoil, and began to think of ways to make it more
useful and perhaps marketable.

� � �It only took a couple of days to conceive of shaping
that would almost focus any radar returns into a very
narrow "beam", reasoning that if microwave tower
antenna could focus microwaves, then radar waves
could be focused too.

� � �I had made a paraboloidal solar energy focusing
mirror out of segments of flat mirror, and noticed
that I could not see my eye in any of the small flat
mirrors unless my eye was at a certain spot in the
center.

� � So the first thought was to make the underside
of the craft shaped like a real long focal length
parabolic dish.

� � �I was flying small unpowered gliders using the
airfoil design, and took it with me when traveling
to an electric motor shop in Johnstown, PA, where
an ex-Air Force guy worked.
� � �I showed him the model, and how good it flew,
and mentioned making the bottom shaped like
a parabolic dish.

� � �A few days later I saw him again and he said
the idea didn't work, and he said he had talked
about it to somebody in California working on
lowering radar cross section, and said they had
tried it.

� � �I avoided mentioning it again, because I had
assumed what we talked about would be just
between us.
� � �Then I thought more about what the shape
of the bottom should be, and remembering some
optical theory from making a couple of astronomical
telescopes, where a parabola is not much different
from a spherical curve if the focal length is long
enough.

� � � Also, a parabolic dish mirror focuses parallel
rays from infinity to an image, but a mirror like
in a copy machine should not be parabolic, but
just cylindrical or spherical.

� � � That meant the correct shape of a surface
that would be the most effective, is a concave
highly polished, metallic spherical surface.

� � � But at very long focal lengths, there is little
difference between a parabolic dish and a
spherical surface, and very little difference
between a spherical surface and a flat surface.

� � �Then it dawned on me, if the US could just
implement an aircraft using all external surfaces
being flat faceted surfaces, it could change the
balance of power in the world to favor the US.

� � While I joked about being able to make cars
and airplanes invisible to radar, I was afraid to
say how, or even write on paper the details of
the theory or the actual shapes.

� � �It was not until the patent office decided my
airfoil invention was very useful in aero-space,
they asked for a statement that declared my
work history, and if I was under contract to
the government when I made the invention,
under the Space Act of 1958 that created
NASA, the government could take my patent.

� � �In the statement, I wrote that only after
I filed the patent application for the airfoil,
I had realized that making all flat plane
surfaces would make it reflect radar in
a direction other than back to the radar
antenna.

� � �This statement became paper # 11 in
US Patent 4,066,226 filed in May, 1977.


There is a misconception that radar dishes make good radar targets. If
you think about how a radar dish works in reverse, hitting it with a
beam disperses the beam rather than reflect it back to the source.

For use on the ground, corner reflectors are best. There is/was a
corner reflector tosses at the old ranch house along the Cedar gate
road. Next up is flat plates. There is/was a flat plate reflector on
Brainwash peak. [I have to use is/was because you never know what gets
stolen around the range. I'm amazed someone stole the warning signs by
Roadblock Canyon.]

I'm not really sure how they calibrate radar by dropping round metal
balls. They are the same balls you see along the border to aid the
security chopper in determining the line. There is a stolen ball in
the LIttle Aleinn.