Types of Airplane Contra-Rotating Propeller Drives

[@SuperMvrk]

Very good effort explaining a very novel piece of engineering

[@nadahere]

Our infinitely variable FrictionLess gear tech enables >10X gear box reduction!

[@RaghavRavi-e5q]

Thanks for the explanation. In the planetary setup, how can I achieve contra-rotation without fixing any one of the gears? If the input is to the sun, how can I get contra rotating outputs from the planet/carrier and ring without fixing the carrier?

[@meunomeeplissken3088]

Saudades dos meus projetos

[@Tim-Kaa]

Nice

[@NavySturmGewehr]

Is there a ratio difference with the planetary contra-rotating propeller?

[@bzig4929]

I believe it can vary depending on friction on the sun and the ring.

[@cebongituantekpekai9262]

Which one propeller rotate the right and the left to got maximum faster running.

[@maxvonnitten4213]

What's the efficiency difference (%) between bevel/planetary gear one and the helical gear coax (the one you also did in the other video)? Also, are these models available online (download)?

[@bzig4929]

There could be. But it could also be 1:1 depending on the gear ratios.