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whirlwind psr blade's


Well-known member
I have the whirlwind psr blades and I just got a 2 blade sensenich hub Now I need to know how to adjust the pitch since the hub doesn't have any notches on it.Does anybody know the best way to do it?
on mine when i ran them i used a carpenters quick square leveled out the prop first the took the reeading about 2 inch from the tip. they are a pain.with those blades i found it easier just to set for desired rpm.
how long will the blade be 70inch,72inch,or 74.
and the bolts if you know size and length go to ace or western auto or local fastener shop.