Turning Point Propellers

A propeller is where engine power meets the water, and the right one fixes a sluggish hole shot or a motor that will not reach its rated RPM. Turning Point builds aluminum and stainless props with an interchangeable hub system, in the full range of diameters, pitches, and rotations. Choosing right comes down to reading the prop size, picking the material and blade count, and dialing pitch to your engine.

Read the prop size: diameter x pitch

Props are listed as diameter by pitch, like 14.25 x 19. Diameter is the circle the blades sweep, set mostly by your engine and gearcase. Pitch is the distance the prop would travel in one turn, and it is your main tuning lever. The number you change to fix performance is almost always the pitch.

Pitch sets your RPM

Lower pitch spins the engine faster for a stronger hole shot and better load-carrying, while higher pitch gives more top speed but pulls RPM down. The goal is to land your wide-open-throttle RPM in the engine maker's recommended range with a normal load. As a rule, each inch of pitch changes WOT RPM by roughly 150 to 200, so if you are over or under, adjust pitch to bring it into range.

Aluminum or stainless

Aluminum props are affordable and fine for everyday use, and they sacrifice themselves to protect the gearcase on a strike. Stainless props are stiffer and thinner, which improves speed, grip, and acceleration, and they hold up better, though they cost more. Heavier and faster boats benefit most from stainless.

Blade count and rotation

Three-blade props are the all-around choice with good top speed, while four-blade props improve hole shot, mid-range, and grip in rough water at a small top-speed cost. Rotation matters too: single engines use a right-hand prop, and twins use one right and one left, so confirm rotation before ordering.

Match the hub

Turning Point uses interchangeable hub kits, so one prop fits many engines with the correct hub. Confirm your engine and gearcase so you order the right hub kit with the prop.

Not sure which prop your boat needs? Tell our crew your engine, gearcase, current prop, and WOT RPM, and we will match the diameter, pitch, material, and hub to get you in the right RPM range.