tbooten

Might be a dumb question but is there a calculator on the net for your particular setup? I.e. brand, length, average load... Something that pertains more to Fountain than other boat? I'm just looking for the most accurate results without having an actual module on board. Thanks for any help.

RT930turbo

All you need to know is GPS speed and RPM... then plug it into the equation...

http://go-fast.com/Prop_Slip_Calculator.htm

It doesn't matter if its and ocean liner or a bass boat, slip is slip.

If you are looking for a theoretical calculator for speed, try this one.

http://go-fast.com/boat_speed_predictions.htm

fountainfan42

Livorsi prop slip gauge

















WANTED - set of PSI Superchargers w snouts & adapter plates

tbooten

thanks guys... 22% doesn't sound to appealing to me...

Dave M

That actually worked pretty well for me. Except, I was estimating a little on the weight.

A.O. Razor

Works very well too. The one i often use.

http://www.mercuryracing.com/propell...calculator.php

So does this.

http://www.heringpropellers.com/prop-slip

And don't forget the on-the-fly version. It's awsome.

http://itunes.apple.com/us/app/herin...472045486?mt=8

bbladesprops

Our new web site will have one that breaks it down into 1/100 of a percent.

We are working hard to get it released soon!

Brett