ryan constantine wrote:

> where do the landing gear go? doesn't look like there is room.  and how
> about engine exhaust?  is that under the wings?  which direction does
> the canopy open?  does the pilot lay down?  why are the wing tips
> 'cut'?  i only recall seeing rounded wing tips.  does the pilot get to
> sit on something and use controls or just flop around inside the
> cockpit?  just kidding with that last one. considering the wingspan is 6
> meters, it looks like the fuselage is about a meter wide and the canopy
> would be 2 meters long.  and the engine compartment seems a bit small
> maybe.  a friend of mine had a push plane called a cozy.  it had canards
> in the front, wings that swept back and had the tails at the wingtips.
> it was a three seater and very aerobatic although i'm not sure of how
> many g's it could handle.  they sold it to get a 5-seater twin engine
> boring plane and shortly after that, the new owner crashed on landing.
> it was deemed unrepairable.  i must say, your design is visually
> appealling.  i like it.
>
> Jens Strohmeyer wrote:
> >
> > This is a general aviation sports aircraft I designed in my spare time.
> > It is a single-seater, has limited aerobatic capabilites (-/+ 6 g)
> > and uses a pusher engine and rectractable main landing gear.
> > MTOW is about 500 kg, top speed is 450 km per hour. Wing span is 6 m.
> > (You must know that I am a post-graduate aerospace engineering student.)
> >
> > "Designed" does not mean "paint" with POVRAY in this case.
> > What you see is the result of months of hard work and lots
> > of calculations and sketches and "what-if's", so there is a reason why
> > the
> > plane looks like this and not any other way.
> > I used POVRAY for design visualization because I had
> > no other CAD-Tool at hand.
> > I send you this not to judge the image, but the plane !
> > Any comments on the aircraft would be nice.
> > Thanks !
> > Jens
> >
> >   ------------------------------------------------------------------------
> >  [Image]

The nose gear rectracts rearward into the nose
(who would have expected that ? *grin*)
while the main gear rectracts partly forward into
the tailbooms (similar to the A-10 Thunderbolt).
This is to keep a rather long wheelbase and track
and to protect the propeller.
Engine exhaust is not shown in the picture, it will be
to the rear (two pipes on each side of the fuselage
little below wing level).
Engine compartment is not too small as i use a
"Wankel" rotary-piston engine. It has little weight
and small dimensions related to high power output.
Canopy opens forward and upward, like in some
modern sailplanes. The pilot sits in it much the same way.
Anything forgotten ?  Oh, yes, the wingtips.
Right, they should be aerodynamically improved.
Rounded wingtips make sense and I already thought
about it, but if you take a closer look at some
aerobatic competition planes (e.g. Extra 300),
you dont see rounded tips.
However, I was too busy with other aspects but too
include it into the image.
Thanks for questions and comments !
Greetings !  - Jens

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