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Old March 1st 06, 07:42 PM posted to rec.aviation.piloting,rec.aviation.homebuilt,rec.aviation.student
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Default Very long boring technical discussion of Lift Faries adn Thrust

OK, Jose (just had to say that one) explain delta wings.

http://ernest.isa-geek.org


Oh, that's a tough one. Looking at the CAD drawings, I was at first
inclined towards the helicopter methods (it's ugly; the earth repels it)
but the composite of several deltas belies that simpleminded conclusion.
It resembles a bird in flight, maybe the air can be fooled into
thinking feathers are on their way... but that requires the air to do
the lifting. We know this can't be true. Obviously some out-of-the-box
thinking is in order. Fortunately I'm up to the task; people have been
trying to put me back in my box for ages.

I am drawn to the 200 mph cruise speed; this is pretty fast for a single
engine prop plane. Maybe we are thinking this whole lift thing
backwards. An airplane's natural habitat is the air, and it =wants= to
go into the air. Very often what brings airplanes down are gremlins,
usually traced to the control system, the avionics, or even the pilot
himself. The object of the propeller is to shake the gremlins off the
plane and allow the plane to achieve its natural state. Since gremlins
are pretty fast, the airplane has to also move forward to keep them off
the plane.

This is a homebuilt, which is the natural habitat of gremlins. So, it
has to move =very= fast in order to shake them off and keep them off.

When you consider how hard gremlins are, and how soft feathers are, it's
a natural that feathers repel gremlins, and lift is sometimes
erroniously attributed to feathers. Many researchers have been down
this path, and there is a large body of accepted literature in support
of the feathers theory. At low speeds, the feather theory and the
gremlin theory give pretty much the same answers, but at high enough
speeds the relationship breaks down and the feather theory gives
erronious answers. This is where gremlin theory shines (it should be
noted that lift fairies are just gremlins gone bad).

Gremlin theory holds the potential for explaining a lot of aviation that
is otherwise unexplainable, but experiments are difficult and fraught
with peril. However, I would be happy to conduct the appropriate
research. Send grant money to Jose, care of Usenet.

Jose
--
Money: what you need when you run out of brains.
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