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JoeClark

Singing Prop - What to Do?

2 posts in this topic

Hi,

Just had the prop re-pitched to match the engine and now she sings quite loudly at around 1300 RPM. Higher or lower RPM and all is fine.

What causes this (I know it has to be related to the pitch angle) and what damage can it cause (if any)? 

Other than re-pitch, what can be done about it?.

Please Help.

Thanks,

I didn't find the right solution from the internet.
References:http://www.cruisersforum.com/forums/f114/singing-prop-what-to-do-15445.html

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Edited by JoeClark

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This is probably the wrong page for this inquiry.  However, a lot depends on your boat, your engine, what the prop is, and what's causing the 'singing' (vibration, change of engine effort to create the RPMs, etc.).  I'd recommend going back and looking in to the solutions provided on the cruiser's forum, or consult a marine mechanic or architect.  There are a lot of factors, and 'singing' is not a very helpful description of a problem.  Ultimately though, does it propel the boat and is it causing damage?

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