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pTooner wrote:
> ...
>
> Well, most tandem wing aircraft are designed to make normal stall
> impossible. (the rutan designs for instance) Pitch stability is a problem
> that I thought had been pretty well handled by airfoil design in canard
> aircraft years ago. My thoughts (I wouldn't call it a design) are simply
> two sets of biplane wings mounted fore and aft. Biplane wings do not
> normally present much of an efficiency problem except for the bracing which
> is not stricly necessary (The hyperbipe was a pretty efficent design) I
> certainly agree that handling especially in the pitch axis is the major
> challenge, but I do not see why it should present a much bigger problem than
> the flying flea family of aircraft where it was eventually solved
> satisfactorily.
This sounds like sort of a biplane version of the dragonfly.
> ...
> Perhaps, but it's been tried many times and with very limited success. I
> know of NO attempt to build the 4 wing system that I envision. That seems
> strange when you consider that about every imaginable combination has been
> tried at one time or another.
Everytime I have had an idea for some way to build an airplane that I
had never seen before it took only a few minutes on the web to find
examples of the concpet that had already been built and flown.
So I daresay if you have a novel idea that has never been flown
there is probably a very good reason why it hasn't.
If you are merely interested in being able to get the plane
easiliy into a garage, there are many folding wing designs
to choose from or adapt. In addition to the Flying Flea,
the kitfox is another.
Regardless, good luck.
> Didn't someone finally build an operable
> ornithopter?
>
There have been many small (e.g. bird-sized) ones flown. You
can buy a plastic toy ornithopter for under $50.00 and there are
plans available on the web to build a rubber-bad powered version.
> >
> > But have you looked at all the wires around most roads? Not an area I
> > would want to use for landing and takeoff.
>
> Good point, but they aren't everywhere. ;-)
>
You have legal restrictions to be concerned with on public roads,
but there are private roads.
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Re: questions on multi-wing planforms
