zlacker

The hurricane wing? It's smaller.

https://www.saildrone.com/news/tropical-atlantic-hurricane-m...

>>maxeri+(OP)
Ah ok ... no I was asking about the full size wing with that second wing attached to it.

>>fho+X
Think it's like an elevator on airplane controls the angle of the big one.

Easier to rotate the wing than a motor at the root of the big wing.

>>jcun41+Wj
Ooooh ... smart! Now ... I wonder if I can do the same thing for my 3D printed (hobby-) VAWTs!

>>fho+1r
I think those have some kind of centrifugal pitch control with a linkage (based on RPM), might have to look at existing designs.

There are some helicopter blades that have this same idea, a little moving thing to control the pitch of the rotor over a swash plate

>>jcun41+fr
Controlling the pitch of the blades is how most helicopters work.

>>rkager+Y01
Probably wasn't clear above, I'm saying they weren't using a swashplate (most helicopters) they were using this little tiny tab attached to the rotor that could be controlled.

This thing on kman kmax https://gallery.vtol.org/images/2017/08/15/kmaxServoFlap.jpg

info https://www.helis.com/howflies/servo.php

>>jcun41+fr
That's a safety feature as much as it is an efficiency feature, it allows you to safely furl the blades when you are overspeeding, you can't rely on anything that isn't directly connected to the rotor base because it might be jammed, damaged, out of power or missing entirely. The blades governing themselves is the ideal, the linkage is there for synchronization and balance purposes only.

>>rkager+Y01
Yes, but that's using an external actuator, rather than weights that pull the blades to their new angle.

>>jcun41+D71
Oh neat! Thanks for educating me.