[Kiwi]

Dan,

Wow I was worried no one was going to get back to me on this one. Actually to machine a four blade rotor head is likely one of the easiest things to make. I have struggled on engine installations in gassers that are far more complex I think.

Ok I will get some photos as we go with this project as its one that has caught my imagination and I need to follow it through. What is the principal cause of the ballooning in forward flight. I have some very limited time in the real things and of course the brain and the bum are fantastic things to compute whats going on and thus do the mixing as the flying environment changes.

Its also interesting what you have to say about the two bolt blades having less of a ballooning effect so that makes me think the blades must lead and lag as they rotate into a non static airstream. That would be hell of a difficult to mix out as its airspeed related and nothing in any radio has the ability to changes mixes with speed.

Dan, can you post some pictures here of the Vario grips and the anti rotation pin. It would be very easy to make a totally adjustable swash plate so the phasing could be fine tuned.

But first off a glimpse of those two bolt grips to see whats up there and what can be done at home. I certainly do not intend to make my own grips. Thats way to complex at this stage of the game, not impossible of course but easier to buy them at this stage.