ORIGINAL: scratchonly
My Enya .46 4C turns a 12x6 at 9,400 RPM, but I think these engines are among the most powerful ever made.
Wayne,
It is hardly so. This prop (I suppose APC) at this RPM is just 0.64 HP actual output.
The Enya .53 4C was notable for being exceptionally powerful; not the .46.