However, as centrifugal and axial flow air pumps go the RPM is not very high.
It would help if the spinner backing plate were 14 inches in diameter.

Yes, like make a custom flywheel to replace the auto trans one we use with Tracy's redrive, weld a bunch of fins to the back side and feed in air through holes around the planetary carrier.
Paul, take a close look at Klaus's boat tail, the aft end of it is assymetrical. We were speculating what his reason was at Rough River.
...Chrissi

Forget pumping air by mechanical means. Use cowl flaps and electric fans.

I am sure it is aligned with what Klause thinks is the slip stream direction.
The slip stream in front and aft of a prop is helical.

Paul Lamar
 
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