On Mon, 17 Aug 2015 17:43:26 -0400, Justan Olphat
wrote:

On 8/17/2015 2:36 PM, wrote:
On Mon, 17 Aug 2015 13:04:24 -0400, Justan Olphat

Your boat fits nicely in the workboat catagory. Proper prop size is
whatever allows your engine to attain WOT mfg. suggested RPM. Your prop
is probably larger in diameter and shallow pitch. Probably 12 pitch.

It goes a little deeper than just matching RPM to prop diameter and
pitch.
High performance boats want the exact opposite of "big foot". They
have as small a gearcase as possible to reduce drag but they are
easier to break and low speed performance suffers.

OK Work boat ;-)

BTW 14x11

It still comes down to WOT RPM. What do you mean by low speed
performance? Isn't that something that matters to work boats more than
recreational or high performance boats. Hole shot is the only thing I
can think of that might interest some recreational boaters.

Low speed performance just means maneuverability, particularly when
you have wind and current. That might be a work boat situation or just
trying to get to the dock at a crowded restaurant.
Swinging that big prop allows pretty big steering inputs at fairly low
RPMs.
I shortened the steering arm on my motor so it turns farther than
Yamaha or Mercury had in mind. I can do some pretty tight turns in
close quarters.