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					Originally Posted by Stephen McTowelie  Yes its called a auto-rotation but its basically just gliding something planes can do too ;) 
And its easiest with RC helicopters and planes    
If you mess it up your fine   | 
	
 IIRC you must start auto-rotation while you've still got 85+% of revs, or you're going to be a rock. The time between engine dying and you hitting 85% of revs is a few seconds, maximum - so you've got to be able to diagnose the problem calmly and smoothly, and pull the lever to flatten the blades. Or you'll be a rock.
Or so my memory serves ;)