Autosync,
Yes I'm 19. Like that makes any difference anyway. You don't have to be a test pilot to have an opinion on something like this. I wouldn't sit down with Nick Lappos and discuss the merits of different angles of blade twist because I know nothing about it.
The reason I replied to this post was because having tried a similar maneuver I believe I have an opinion which might be worth adding to the discussion that is taking place here. Just because I'm 19 doesn't mean I can't fly. If you want to discuss this matter then do so, if you want to criticise me, send me a PM. Leave the board to what it's for - discussing aviation.
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Although I think the technique might have some use, I can see the downfall of teaching a student how to do it. No matter how much you stress that it is only a last resort, someone who is not continually practising auto's may be at their mental capacity coping with an emergency. For them to try and complete a climb in the auto to miss a fence might be a bit of an overload for the average PPL. My instructor used to always say the two things I had to remember in an auto were "Rotor RPM and make your spot". It might be a better idea to teach students to really really pick the best landing site they can if the noise stops.