Keyless Propeller Fitting Calculations


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Based on American Bureau of Shipping (ABS) Rules, Part 4 , Chapter 3 , this application provides a comprehensive set of calculations for fitting of a keyless propeller. It takes in the geometrical inputs of the propeller together with material inputs and vessel’s parameters to give as output the critical parameters like

  • Minimum pull-up length
  • Pull-up load
  • Minimum required mating surface pressure
  • Hoop and equivalent stress

The app is easy to use, and has in-built table to pick inputs like material type for hub and shaft.

Available only in SI Units


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