John,
There's a bun fight going on around us, but I should say that I posted the last one with a bit of "tongue in cheek".
Your numbers and physics are beyond me, but you did put them in arms and legs conversions. Basically, I think I was trying to say on the discussion was that, despite what your best mate at the flying school said, please listen to the old farts. That bloody tiny tail rotor on your R22 suddenly turns into that small thing at the back when you're flying a Skycrane.
There was a case a couple or so years ago when a CH-53 went into a highish hover next to a hill, (with a slight breeze, but that became important)
and then spiralled down killing everyone.
Tailrotors have to be respected, that CH-53 crew had no idea how sensitive they can be.
Nick, if you're still listening. How the hell can you crash coming to a hover in one of Sikorsky's finest aircraft. What happened there? I heard it was loss of tail rotor control.
Today, everyone takes the tail rotor for granted. <img src="cool.gif" border="0">