Prop vibration under sail only

[misssherry]

Originally Posted by tkeithlu

In theory, at least, a stopped prop should give you slightly less drag than a spinning prop, but I'll defer to those with more practical experience with the issue on sail boats - I skipper a stink pot.

This link is from an old cruisersforum post by Maine Sail. I think it was the first post that I read of his and made me a loyal fan.

http://www.cruisersforum.com/forums/...ng-7815-2.html

[model 10]

Originally Posted by Uncle Bob

?? A loose blade on a fixed prop??

Maybe he doesn't have a fixed prop? Maybe the whole thing is loose? There has been so much BS about this, why not a little more?

[Uncle Bob]

Originally Posted by OrangeCrush

No, it’s a 3 blade fixed prop. I should have specified that.

Originally Posted by Ecos

Maybe he doesn't have a fixed prop? Maybe the whole thing is loose? There has been so much BS about this, why not a little more?

Ah,I see, you are suggesting that Orange Crush doesn't in fact know what he has.
Or perhaps a reading of all the thread may have been more enlightening.

[model 10]

[QUOTE=Uncle Bob;
Or perhaps a reading of all the thread may have been more enlightening.


You are kidding right?

[Chalifour]

Ours is a Yanmar 4cyl turbo 75hp with a max prop. When under sail and after killing the engine, we simply put our transmission in reverse for a second and back to neutral position. This eliminate any noise or vibration coming from the shaft or the propeller. It also avoid starting the engine with transmission in gear. Have done this for the last 9 years with no issue nor problem.
Our inconfort is when we motor sail with the main up where we usually get a vibration at 2500 rpm. We will have our techniciens look at it this winter.