A topic is raging on the 'Rotorheads' forum (not for the first time) asking the same question.
The problem is that I think the complexity of helicopter aerodynamics is clouding what is probably quite a simple concept.
Thus, I put the same question to y'all in the hope of a simpler explanation!
So, why does the nose drop when you reduce throttle?
cl12pv2s
Same question to the Rotorheads!