Outside Loop
In Flow role - that's the term I was looking for in my earlier post - although I thought in flow role and having to compensate for flap back in forward flight were two different things - I would be interested if anyone could confirm this.
Lu
Thanks, but you already sent me your diagram. I understand your arguement and the diagram does not help me any further. The point that no one has addressed from Joe Pilot is that if the blade flaps to position before 90 degree then Lu's arguement falls apart.