Posts: 3508
Location: Elk River, Minnesota | Hiya,
I'll help out if you'd like....
I do have a couple of questions for you regarding your rig. First, What are the Max RPMs and speed you get when you are fishing alone with just your gear?
I am assuming this is an Esox series of boat, and looking at the website, it has a bit of weight being #1400 and rated for 150hp. With a 115hp on the back, I would bet it will struggle with that particular pitch of prop even under lighter loads. My instinct would say you are well below the max RPM of 6000 on your motor, which really means getting a prop with a less pitch. Depending on those RPMs you might find a 17 pitch or possibly a 15 pitch might be needed, and you should be able to stay with a 3-blade design. The lower pitch will essentially get the stern to jump up quicker since more RPMs will be created in the lower throttle range, making it easier to turn the prop.
What a 4 blade prop would do is give you better hole shot and more handling capabilities, but you will loose top speed as well, not only due to a requirement of less pitch when you go to a 4th blade, but you also increase the blade surface area which increases the amount of drag in the water.
so...if you have the numbers and would be willing to divulge that information, along with a mounting height for the motor as it is mounted on the transom , a more thorough recommendation can take place. Lots of variables to consider that can affect the performance of the boat altogether.
Steve |
