And put it on floats?If I were going to fly the Mississippi River low and slow from start to end, I would build one of those and paint it green.
Thanks for post # 11 although many people say they just want a slow, simple inexpensive aircraft when it comes down to it their real interest is in going somewhere and speed does become an issue. Typical soaring birds, condors, eagles, and vultures need to hang out looking for food. Many pilots get board just hanging out and decide they really do want to go some other place to eat and gravitate towards aircraft configurations more in line with seabirds such as gulls and albatross. This thread was started because I am having difficulty finding good reasons to develop the floater vulture like configuration of the original post.This kind of airplane was always of my interest. Marko Stamenovic made a study about this type of wingplatform for me.
It was my intend to create a hangglider that was easy to assemble. Just a rigid structure you can transport on top of your car. At launchpoint just slide in the wingtip feathers and add the tail and take off. Marko did many many calculations and was really surprized with the stability at low speeds of this concept.
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The project evolved into the BirdGlider which was a more classic concept. Reason was mostly our concern how to fix pilot into this glider.
What did i learn from this project? Short coupled airplanes are possible, but ... when i tried to present BirdGlider at AeroShow i noticed that people are very very doubtfull about the short coupled tail. they did not trust it. I guess only positive test results would make them change their point of view.
Stability would have been the surprising benefit of the concept. And i guess beginner-pilots need that stability. So it would have been a good glider for beginners in aviation.
Tha sad part of this project is that Marko had a PC crash and all the data was lost. All i have are the rough 3D's which were the start of the idea. At that moment we had no clue of the real dimensions of the wing and tail. By tha way ... Marko insisted on also placing a vertical tail for stability. Marko is now working on flying plank designs without vertical tails. He uses the Horten way of wing design. Bell shaped lift distribution. Maybe he could with his knowledge now create this glider again but without the vertical tail.
The Birdlike BirdGlider project can be seen here: The Bird Glider - Nest of Dragons
My opinion about the wingtipfeathers can be seen here: BirdWing - Nest of Dragons
I still believe it could be a fun hangglider for beginner pilots.
Keep that brain spawning wings,
Koen Van de Kerckhove
Koen is pronounced as racoon without ra