On Dec 14, 7:48*am, "Peter Dohm" wrote:
* *Reduced capacity for any given disk area.
2) * *Poor streamlining at speed in airplane propeller applications.
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Dear Peter,

I'm not sure if the 'poor streamlining' was meant to apply to single-
bladed props or to props installed on the clutch-end of the crankshaft
but in the latter case you will find that the tranny flange of the
engine, which is about 13" in diameter, is completely submerged in the
streamline when the prop is fitted with a 12" spinner.

-R.S.Hoover