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  • 3 Blade 70
  • hub assembly
  • side hub view
  • 180 hunt boat
  • pond scum
  • modified pitch block
  • modified hub assembly


  • Propeller Series

    • Alpha Series
  • Material

    • Carbon Fiber
  • Engine Type

    • Direct Drive
  • Horsepower

    • 100 - 350+ HP
  • Available Rotation

    • Left Hand Only

Special Features:

  1. Left Hand Rotation
  2. Advanced Manufacturing Process
  3. 6 Inch Blade Width
  4. 3000 Maximum RPM
  5. Blades can be trimmed for smaller diameters 
  6. Sale price of larger diameter propellers will be higher
  7. Different hubs can make propellers diameters from 70"-74"
  8. Never reduce blade length before consulting with Sensenich Propeller


Installation Instructions

Specification Sheets


3 Blade 70" Alpha series Propellers

Specs | Special Features | Documents | Related Items

The new Sensenich “Alpha” series prop system for the 4-cylinder Aircraft engine market is the latest performance based design for maximum speed along with best in class cruise efficiency. This new system will utilize pitch block and plate hub configurations for many different applications ranging from 2 to 4 blades. This new prop features a more traditional style airfoil for increased mid and top end speed while the light weight design increases the engines ability to respond faster. 
Sensenich has incorporated an optimized composite lay-up to minimize “flattening out” under high thrust loading. This propeller runs extremely smooth due to the composite hollow construction and advanced manufacturing process.

Engines such as 6-cylinder Aircraft and 8-cylinder automotive will also benefit from the Alpha blade, free running hull designs along with this system will have a similar result of fun with a great cruise, snappy and a fast ride style. 


Find your answer on our
Frequently Asked Questions page

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Related Items:

Sensenich Propeller manufactures and services our own Fixed Pitch Wood, Aluminum and
Composite Ground Adjustable Propellers for Airboats, Aircraft and UAVs.
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