Singing Prop

[captrigney]

I had asked here about a high pitched "whine" that appears to be coming from my starboard shaft at certain rpm's. Someone suggested it may be caused by a propeller phenomenon called "singing". I googled it and see that a remedy includes filing the trailing edges of the propeller. Is there anybody here that has had any experience with this? DIY or Prop Shop do you think?

 

[Bendit]

Yes,
Had this phenomenon on two boats. Filing the trailing edge to a more "square" profile cured it for me. Did it myself with no problem. You don't need to take much off.
Interestingly, had the same issue with Pioneer until I coated the prop with propspeed.

 

[Keith]

You must have one of those Disney props.

 

[psneeld]

Often hear it and usually its a cutlass bearing...changing RPM usually gets rid of it...but no reason a prop couldn't set up a harmonic either.

 

[markpierce]

Had a singing prop. After two visits to the prop shop to file propeller edges, the singing stopped.

 

[markpierce]

Had a singing prop. After two visits to the prop shop to file propeller edges, the singing stopped.

Forgot to mention the second time was without charge.