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Ducted spinners: have any succeeded?

riggerrob

I really should change my personal text
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This discussion started on the "Spitfire Variants" thread when the prospect of jet=powered Spitfires came up.
Sorry to disappoint readers, but no jet-powered Spitfires were ever built.
But there was a proposed ducted-fan version of a Spitfire.
Then discussion wandered over to the first Focke-Wulf 190 prototype which ducted cooling air - to its radial engine - through a hollow spinner. Since the prototype FW-190 suffered cooling problems, ti was soon converted to a conventional NACA cowling.
Numerous other prototypes have been built with ducted spinners, but I cannot remember any entering production. ?????

What is the function of the hole in the C-130 Hercules spinner?
 

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