Randy,
I pulled attached
pattern (pdf) from my spinner. It is for a 360 with the 68"
Hartzell. It has a nice uniform 0.25 inch gap plus clearance for the 20
degree blade rotation. It is best to cut a little small and then open up
the hole. Also check clearance through the range of
pitch.
Chris
Chris
Zavatson
N91CZ
360std
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