zlacker

>>duck+(OP)
I really didn't grasp the size of that drone. It is not a little model boat, it is a ship. This video shows it being launched, and includes images of what it looks like:

https://www.youtube.com/watch?v=gJ-uYy9Ap8A

>>Joachi+Tg
That's a larger model, this is the earlier Saildrone Explorer mentioned in that video. The vessel they are launching is 72 feet long, this one is 23 feet. So not a model boat, but not large either.

>>ezzaf+Mh
Could somebody please TL;DR the wing design (of the big boat) for me? The one with the additional extra wing?

>>fho+vi
The hurricane wing? It's smaller.

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

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

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

>>fho+wK
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+KK
Controlling the pitch of the blades is how most helicopters work.

>>rkager+tk1
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