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Cyclogyro (wikipedia.org)
72 points by luu on Oct 12, 2018 | hide | past | favorite | 12 comments

amazing example https://www.google.com/url?sa=t&source=web&rct=j&url=https:/...

blimp that needs to do the cyclo thing to stay on the ground, than reverses lift to carry twice the heliums bouancy.

sry for the Google link, I'm on mobile

I read a comment once by a helicopter pilot that said that helicopters don’t fly, they beat air into submission. Seems to check out with this design.

My uncle is an airplane pilot and his joke goes that helicopters are so ugly that the earth naturally repels them

I heard that this can work pretty well for really small (insect size?) UAVs, lending additional stability.

However, there isn't much information I could find online about this. One of those moments when you wonder if you were taking to someone who slightly misrepresented their government job role.

There's more information here: https://en.wikipedia.org/wiki/Cyclorotor. Turns out a cyclogyro is an aircraft that uses cyclorotors.

(I wonder if the submission link shouldn't be replaced.)

This looks like way too many moving parts for small UAVs though.

Looks like the pitch of each blade needs to be adjusted very precisely while the blades revolve around the axis at a high RPM. That's tens of thousands of adjustments per second. This would have been nearly impossible in the past, but a raspi on a drone coupled with tiny motors in each blade might be able to pull it off.

Wouldn't it be adjusted by a single mechanism, similar to a helicopter swash plate, rather than individual servos?

The animation on the wiki page shows how the blade pitch is adjusted mechanically.

Helicopter blade pitch also changes as the blade rotates and it's done mechanically with a swashplate.

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