where did induced drag come from?
it's induced flow, and the angle of attack is increased or reduced with increases or reductions in the induced flow.
basic aerodynamics. nothing of any consequence has happened to light to medium helicopter aerodynamics since the introduction of the 47 in '46.
are you blokes trying to reinvent the wheel, the knowledge of some posters is very sadly lacking for (i presume) professional pilots.
zero collective touchdown autos are not impossible and you only need a few knots on the nose and a bit of timing and lots of practice.
