CONTINUOUSWAVE

Top [boat] speed seems almost the same [as with the previous 14=pitch propeller]. The top boat speed may be 1- or 2-MPH faster with the new 12-pitch propeller. The new propeller has also improved boat acceleration when the boat speed has slowed; the [lack of the ability of the boat to accelerate rap...

Installing a [four-bladed propeller of 10.375-inch diameter by 12-pitch] made a noticeable difference [in the boat performance]. With the two adults and two children for a total of 415-lbs crew weight, and with six-gallons of fuel aboard, now [using the four-bladed propeller of 10.375-inch diameter ...

NorthShoreWhaler wrote:I went to a fouir-bladed propeller...

Q3: what size and pitch propeller?

Gear ratio according to the sticker on the drive says 13 x 26 2.00:1

Took it for a cruise last night after work. With myself (180-lbs) and my six-year-old son (50-lbs) the GPS SOG hit 26-MPH on a smooth lake at engine speed of 5100-RPM. I hope a [new] propeller can get the boat speed to 30-MPH by [letting the engine accelerate to a higher speed], and [the new propell...

Thank you Phil.

This morning I was doing more reading and noticed the new SPORT 130 boats with a Mercury 40 come with a four-blade 10.1 x 14 SPITFIRE propeller.

Q1: What’s your opinion on that?

Q2: Would that be better or worse than a 10.3 x 12?

I bought a 2005 130 SPORT with a Mercury 40-HP FOURSTROKE engine. I am disappointed in the available power with two adults and two children aboard. I suspect the propeller needs to be changed. The current propeller is a black Mercury 10-3/8-inch-diameter 14-pitch. The gear ratio is 2.00:1. Accelerat...