Propeller Repair
Propeller Technical Data
Inboard Propeller Installation Procedures


Propeller Basics

Pitch - The theoretical distance, in inches, that a propeller travels forward during one revolution. Think of pitch as speed. The higher pitch propeller the engine can turn, the faster the boat will usually go. You only need to choose the correct pitch propeller for the boat and engine. The correct diameter for that propeller has been predetermined by the engineers at the various manufacturers.
Diameter - The distance across the imaginary circle made when the propeller rotates


Black Max Series
  • Quality die-cast 3-blade aluminum
  • Eye-catching high gloss Phantom Black finish
  • Easy to maintain & repair
  • 6 in. - 25 in. pitch
Alpha 4
  • 4-blade die-cast aluminum
  • Better acceleration and handling than 3-blade
  • Right-hand and left-hand rotation
  • 16 in. - 20 in. pitch
  • Better acceleration & handling than 3-blade aluminum propeller
  • Proven 3-blade design
  • Patented Duratec gloss finish
  • Right-hand rotation, Left-hand rotation available in some pitches
  • 9 in. - 25 in. pitch
High Five
  • Patented 5-blade stainless technology
  • Smooth-as-silk acceleration
  • Pulls skiers effortlessly
  • 17 in. - 26 in. pitch
Trophy Plus
  • Patented 4-blade stainless steel design
  • Quicker hole shot, improved mid-range speed & amazing handling
  • Reduced steering loads
  • 17 in. - 26 in. pitch

Four Blade Propeller Facts
  • Plane the boat faster than 3-blade propellers
  • Keep the boat on plane at a lower speed
  • Give improved mid-range speed at the same RPM as a 3-blade propeller
  • Provide quicker acceleration than most 3-blade propellers
  • Run smoother than 3-blade propellers
  • Have better holding power in rough conditions
  • Are less likely to ventilate in sharp turns
  • Provide better low speed handling
  • Are not quite as fast on the top end as a comparable 3-blade propeller