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Wingtip less ring wing Vario Copter

BG and EN .pdf presentation download here

The asymmetric reduction in the area of the oval wing maintains zero wingtip induced drag (37% of total drag), but reduces its lift. It is over-compensated by the wing's lower self-mass and lower skin friction drag, due to its reduced wing surface area and dimples (similar to the dimples on golf balls) on its underside. We obtained such definitive results from laboratory measurements on wind and hydrokinetic turbines with similar elliptical blades

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Used petroleum fuels in aviation are already economically unprofitable, due to the suspension of inexpensive supplies from Russia. And because electric traction powered by batteries or hydrogen fuel cells is much more energy efficient and environmentally friendly.
The aviation solution for increased payload is high-span wings. They are known to form strong wingtip vortices. This causes significant energy losses, particularly high at limited wingspan, which is mandatory for roadable aerocars.
That's why we developed innovative, compact, annular ring wings. The lack of wingtips guarantees zero wingtip losses. Due to their spatial construction, they are mechanically much stronger. Therefore, their comparative cost is significantly lower, compared to that of conventional wings produced from similar materials and with similar technologies. This directly stems from their marked aerodynamic and structural advantages.
Our innovative projects, with world patent novelities from 2022 and 2023, are presented in all pagesof this site. More download HERE

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2020 - 2023 Copyrights by George Tonchev,

+359 876 403 727   InventorTonchev@gmail.com 

Inventors and patent holders

George Tonchev, Veselin Vassilev. Alexander Lupov.

 

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