Hutch3674 Posted November 20, 2018 Share Posted November 20, 2018 Any ideas why there is some holes on one of the blades? I think some sort of balancing / Harmonising . Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted November 20, 2018 Share Posted November 20, 2018 Holes are where they balanced it. Same often seen on flywheels and crankshafts. 1 Quote Link to comment Share on other sites More sharing options...
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