Cubdriver wrote:
> On Thu, 17 Jan 2008 23:31:06 GMT, "Kloudy via AviationKB.com"
>  wrote:
> 
>> What kind of flying are you doing where you're expecting to be letting down
>> w/o power?
> 
> I go to idle when I'm abreast of the touchdown point. I finish the
> downwind, and fly the base and final legs, without power unless I've
> goofed in turning base too late. 
> 
> And that reminds me: I've often wondered how much difference it makes
> if the engine is actually dead and the prop is windmilling, as opposed
> to revolving at idle. If I do actually lose engine power, will I sink
> more rapidly?
> 
> Blue skies! -- Dan Ford
> 
> Claire Chennault and His American Volunteers, 1941-1942 
> new from HarperCollins www.FlyingTigersBook.com

Far less drag on a dead prop than on the windmilling disk, but it 
shouldn't matter really. On any unpowered landing you should be making 
your altitude and airspeed adjustments in the approach automatically 
using the sight picture the configuration of the airplane is giving you 
based on the remaining geometry that you're seeing between where you are 
in the approach vs where you have to be to make the landing at the spot 
chosen.
Much is made of the drag factors between these two scenarios, but as it 
relates to the real life situation, it's what you see vs what has to be 
done that matters. All you need to be dealing with in a power off 
landing is the scenario you've been given.


-- 
Dudley Henriques
--- SBBSecho 2.12-Win32