My Prop Slip

[TwoBallScrewBall]

Let me thank everyone in advance for the help with all my questions over the last couple weeks.<br /><br />Now here's another one...<br /><br />Using this prop calculator:<br /><br /> http://www.rbbi.com/folders/prop/propcalc.htm <br /><br />my prop slip with the 19P stainless is 22% and with the 17P aluminum is 27%. Sounds high, no? If it is, what could be the cause?

 

[Dhadley]

Re: My Prop Slip

Have you looked at where the cup ends?

 

[TwoBallScrewBall]

Re: My Prop Slip

I know the trailing edge has a little lip on it, on the 19P stainless. I have not yet specifically looked at it, when I get home today I will lay a straightedge along the blade and see what it looks like.

 

[Dhadley]

Re: My Prop Slip

You dont need a straightedge. Just look at the cup from the hub out. I'm sure it will end before the tip.

 

[TwoBallScrewBall]

Re: My Prop Slip

OK, I will. Another number I just ran, with the brand new ballistic I get 20% slip. Maybe that's simply about right for this hull? <br /><br />DH, thanks again for the help!

 

[Dhadley]

Re: My Prop Slip

I think we can do better. Just hang in there.