Lu,
Your facination with the swashplate is really something. Why do you always get into confusing discussions about the swashplate and horn angles? Do you have some more pet theories about how some designer made a mistake that happened when you went to the toilet during the design phase of the program?
The horn contribution to the swashplate phasing gets the reader all confused, as it confuses you, too. What would happen if I wrapped a pitch horn twice around the swashplate, so the horn angle was 720 degrees? Whould you then claim that the swashplate was 2 rebolutions ahead of the blade? How absurd can you be?
The horn angle and the swashplate angle are both summed when talking about the swashplate phase angle, which we call gamma. Why don't you stop all this confusing drivel, and get back to the basics?
The swashplate angle of virtually all helicopters is matched to the need of the blade to flap properly and give the pilot the tip path tilt that he demanded with his cyclic. I cringe when you start with the "Sikorsky has 45 degrees and shmidlap has 90 degrees" when it is all really the same!!
This whole string of threads started when you tried to yet again assert that the Robinson was off by 18 degrees, and that is why it is (in your eyes) such a poor helicopter.
Give it a rest, please.
To those who read Lu's seemingly curious questions and claimed facts:
He is mostly wrong in his facts, and very mostly wrong in his explanations. If you wish to learn something about helos, try to simply ignore his poor math and poorer explanations.
I have been the chief R&D test pilot of a major helicopter company, have written many technical papers on these subjects, hold a number of patents on helicopter controls, and I get the willies when I read yet another Lu Zuckerman explanation for some poor unsuspecting student pilot.
I get further steamed when he blows this hot air, then backtracks waffles and then finally blames those who he says taught him the stuff he spouts.
Sorry for the venting, but please take what I say to heart. I know Lu is only trying to help, but the only ray of light I can see is that Lu has not offered any advice on brain surgery, as this is a quicker way to get hurt than following his aviation advice.