Feathering an engine
wrote in message
...
I couldn't see, from those charts, that the spinning prop
developed a LOT more drag, like the flat plate some here claimed it
would be. A flat plate the diameter of the prop disc would be about
four times the flat-plate equivalent of the aircraft's profile, I
think, and would steepen the glide to some awesome angle.
I'm going to have to go up and do it again. Many years ago I
stopped the prop on a 150 and found that the glide was a hair steeper
for a given airspeed. The prop stopped, reluctantly, near the stall,
and diving the airplane to Vne would not restart it.
How many others here have actually tried it, besides me?
Dan
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It was demonstrated to me during flight training many years ago. I did it a
few times later after I got my license just for fun, and an opportunity to
hear the airframe with no engine noise.
I never had a problem stopping the prop, but probably never exceed 100 kts
while gliding. In no situation did a prop ever attempt to restart it's self.
However, just a bump of the starter would send it wind milling again, even
with the mixture still closed.
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