Join Date: Apr 2006
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" a fix might be to file the leading edge of the blades down."
I'd be scared to do that, outright scared. If the prop maker did ANYTHING right, the odds are that they also put some effort into how they mold or shape the edges, and randomly attacking them with a file will just ensure the maker won't take them back. And no one else will really want them.
Thrumming resonance? Well, yeah, pulses of water shooting off the prop and hitting the hull. Heard of that with many "wrong" prop installations, either a matter of clearance, or balance, or always something very basic but simply wrong for that combination or prop and hull.
Has Perfect Pitch made any comment?