To: Dave Jackson
Delta3 is a flap-pitch coupling. As the flap angle gets greater, the delta3 will remove more and more pitch. In other words, the increasing blade flap removes some of the pitch instruction that is telling the blade to flap, in the first place.
First I have to say that I am amazed by your technical knowledge. However each time you make one of your pronouncements I get more confused. I agree with the first part of the above quote relative to the higher the flap the more pitch is removed. I do not believe the second part is correct. It is not a pitch instruction that is telling the blade to flap. It is an outside force (gusting) that the blade is responding to and not pitch input from the pilot. When the blade flaps you get pitch flap coupling and it is this action that results in pitch being extracted from the blade. It is the removal of the pitch that causes the blade to return to its' track position and in doing so (flapping down) that the blade pitch returns to the pitch that the pilot commanded.
Regarding your use of number to illustrate your point my eyes begin to cloud up. I understand what pitch flap coupling is and what causes it but when you add numbers I am technically lost.
To: Gaseous
You changed your mind!
If it is not too overcast check the moon. You will note that is blue.