Advance Ratio Calculator

Advance Ratio Equation

$$ J = \frac{v_0}{nD} $$ where:

J = Advance Ratio (Dimensionless)

v_0 = Freestream Velocity (m/s)

n = Propeller rotational speed (rev/s)

D = Diameter of the propeller (m)

Calculator

Property to Calculate:

Advance Ratio (J):

Freestream Velocity (v_0):

Propeller rotational speed (n):

Diameter of the propeller (D):

Equation Assumptions

The system is in steady state.
Fluid is incompressible.
The flow is at the propeller disk is uniform.
The fluid behaves as an ideal gas.
There are no propeller interaction effects.