New Motor, Where to Start with the Prop?

[clarkbre]

So I'm in the process of deciding between 2 motors for my boat but am wondering what pitch prop I should consider putting on either.

Boat Specs: 16' Lund WC, 5'9" beam, weight of hull is about 325lbs, weight with people, gear, and motor is about 1000lbs.

Motor: The motor will either be a Yamaha or Mercury 25hp 4 stroke. Both motors have a gear ratio of about 2.08 and a WOT of 5000-6000RPM.

As of now, neither motor will come with a prop so I will have to pick a pitch. The diameter will be right about 10".

My overall goal is to have good even performance in getting out of the hole, top speed, and general boating.

Which prop pitch might be a good one to consider starting with?

 

[hwsiii]

Re: New Motor, Where to Start with the Prop?

Clark, you need to buy a 12" pitch prop.


Prop Picker

H

 

[clarkbre]

Re: New Motor, Where to Start with the Prop?

Right on, is that a website or where can you find that calculator online.

 

[hwsiii]

Re: New Motor, Where to Start with the Prop?

Clark, you won't find that on the web,that is custom software I wrote for picking the right props for planing boats. If you will look at other posts on here you will see that it works very well.


H

 

[countvlad]

Re: New Motor, Where to Start with the Prop?

Clark, you need to buy a 12" pitch prop.


as everyone of us find out the hard way, to find the right prop comes throught trial and error...

get the 12 see what it does go from there.... 12 might be the winner or not... you wanna get as close as you can to the high side of the recomended range....

keep us informed good luck