DIY Dynamic Propeller Balancing

Alignment: The spinner must be perfectly aligned. On my William Wynne Corvair Engine, I use a 13-inch spinner that is 16 inches from base to tip. If this is off by 1/8 th inch in its mounting it will produce a ¾ inch wobble at the tip along with an unbalance that is increasing by the square of the RPM’s. ................
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