LZ,
I do use flapback as my chosen label and it is similar enough to yours to be reliable.
I agree on the effects of the Delta three hinge and encapsulate it by saying that
"the Delta three hinge reduces flapping amplitude". But it still does flap whether two blade (which is where we were) or multi
blade for that matter. Thanks for the input, it looks like this thread will run and run until we have done all that could be done on the TR and that is actually no bad thing as it is too often ignored in P of F.
What about TR vortex next? Any takers?
And the Gazzelle/109 question - NO practical knowledge at all but I assume that the Pilot
would set the collective for correct (desired) ROD and move that hand to the stick and operate the throttle with the right or just operate the throttle with the left depending on position of the throttle.
But as I say, NO knowledge and I am just guessing.