PPRuNe Forums - View Single Post - Calling Nick Lappos - Blade Stall
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Old 26th Oct 2016, 11:00
  #219 (permalink)  
puntosaurus
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AnFI. Before you post back, just look carefully at these last few posts, particularly Lonewolf and Brian.

Your original observation was that when the disc is producing the maximum lift that it can, then (all other things being held the same) it will be at its most coned. So far so good. The problem is you've then tried to say that the max coning will happen independent of rrpm. Maybe, maybe not, probably not actually, but actually who cares ? As lonewolf says, in a governed machine, the vast majority of this manoeuvre would have been performed at constant rrpm anyway.

So IF (and that's a huge IF without any actual evidence) this manoeuvre managed to power the disc past the linear part of the lift curve (the end of the pull more get more party), the coning angle might indeed have maxed out briefly. Well done, as Ascend Charlie would say, what a clever little secretary. As a tribute to your persistence we could call that the UCA @ 100% or AnFi's limiting angle if you really need an ego boost.

But that dynamic situation (IF it occurred) would have only lasted until the flare ran out of steam, because we all now know that the engines alone cannot power the disc to stall (Thanks Nick !). At that point other phenomena would have kicked in, or to put it colloquially, the pooch was screwed.

AnFI feel free to take credit (from me and AC anyway) for the original observation, but realise you've stretched it way beyond its ability carry useful weight.

Maybe Crab or Lonewolf can finish of with a coda from personal experience which tells us what it feels like when you get close to or maybe even past the linear part of the lift curve. And then we can all sit down with a cup of tea and be friends again.

Last edited by puntosaurus; 26th Oct 2016 at 11:22. Reason: Apostrophe in the wrong place, don't want the pprune grammar police on my case.