"Javier, Cliff is absolutely c
"Javier, Cliff is absolutely correct. The "range" of pitches (and diameters) that you could potentially run on that motor is only limited by what various prop mfgs produce.
Noel notes two of the "more common" pitches (12 and 14) that you would see on that horsepower, but correctly matching a prop to a particular rig is not something you can find on a chart.
Even two identical boats, with identical motors could run significantly different props.
Depending on how the boat is used and what it's normal "displacement" weight is, will dictate which prop to run.
Additionally, the time of year and the altitude at which the boat is operated also effect what prop should be used.
Just as an example, I have a 14' Aluminum Princecraft with a full console powered by 15 horse Merc/Mariner with a 2.5 horse (twin)Evinrude kicker.
So boat weight is 225 pounds dry, plus 110 pounds worth of motors, plus 60 pounds of battery, plus 50 pounds of fuel (average) and maybe 15 pounds of safety gear (anchor, spare prop, fenders etc) - then add me and the wife (about 300 pounds - we are both skinny
) and the displacement weight is between 750-800 pounds.
In the spring and the fall, when the air is cooler and humidity is low I run a 4 blade, 10 pitch prop.
In mid summer when temp/humidity is high I swap out for a 3 blade, 9 pitch.
And if the boat is further loaded up near it's max displacement (or anywhere above about 1000 pounds - so an extra person with gear/junk for the day) I will swap out the prop for a 3 blade 7 pitch.
So one boat/motor combo = 3 different props, and actually it would still take one or two more to really cover all the ways I use the boat.
You can't get that information from a chart AND my example demonstrates that there is no "one size fits all" prop for your boat in every situation.
Every boat owner should sit down with a dealer "well versed" in props and determine what is best to fit the needs of their individual boat/motor combination...."