Scratch in prop

[nknowland]

I have a nick/scratch on my prop (forward edge) caused by a mechanic trimming the cutlass bearing with a hacksaw.

Is this a potential problem?

[Cheechako]

Probably not, on the hub? not a notch in the blade right?

[nknowland]

Yes, the scratch is on the blade...

[Stumble]

If you can feel it then yes it's a problem. Even small nicks on the leading edge will reduce fuel economy, and balance. How much of a problem is a different story. The larger the nick, and faster the prop turns the bigger the issue. On a fast turning outboard prop I would absolutely have it repaired, on a slow turning sailboat it would just depend on the severity and how it feels underway.

[a64pilot]

Smooth it out with a file, blend it in, it's what we do for aircraft props, biggest reason on aircraft props is a scratch or nick is a stress riser and over time a crack may develop there.


Sent from my iPad Pro using Cruisers Sailing Forum

[Celestialsailor]

Please don't fill too much...remember these things are balanced.