Re: new member, wanting to compare performance 23c
 

thanks for the replies
what makes a stern lifting prop different than a regular three blade
I assume it creates some lift, but how does it do it?
different blade configuration?

Re: new member, wanting to compare performance 23c
 

I guess it lifts the stern of the boat because that is what it did for me after I installed a 225 Honda which was much heavier than the old Merc 200 2 stroke. FrankFrank is the prop guru here , seach for his posts.

Re: new member, wanting to compare performance 23c
 

I know all the bow lifters are higher rake props. I believe Low rake props provide more sternlift . . .

Re: new member, wanting to compare performance 23c
 

Mercury has a very good primer on prop technology here:

Prop Technology

As has been mentioned above, Fr. Frank is the resident X-purt. The Merc site will help you understand some of what he says about props.
Dave

Re: new member, wanting to compare performance 23c
 

Tim is right on here.

High continuous rake props provide lots of bow lift. Low continuous rake and Progressive rakes props tend to provide more stern lift. Generally speaking, 4 blades also provide much more sternlift than 3 blades.
In general, one of the rules is that the greater the proportion of forward thrust created near the point of rotation, which is the hub of the prop, the greater the stern lift.

Of course there are a great many other factors which affect all of this, which is why there is no substitute for putting a prop on and giving it a try. The experiences of so many members here on CSC who have tried so many different props is a great resource.