Propeller Advance Ratio Calculator

The propeller advance ratio is a dimensionless parameter used in aerodynamics to characterize the performance of a propeller. It describes the ratio of the forward speed of an aircraft to the rotational speed and diameter of the propeller.

Where:

  • = Propeller advance ratio
  • = Airspeed (velocity) of the aircraft
  • = Rotational speed of the propeller (in revolutions per minute, RPM)
  • = Diameter of the propeller.

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