Propeller Efficiency Calculator

Propeller Efficiency Equation

$$ \eta = \frac{T v_0}{P} $$ where:

η = Propeller Efficiency (Dimensionless)

T = Thrust (N)

v₀ = Freestream Velocity (m/s)

P = Power delivered to the propeller (W)

Calculator

Property to Calculate:

Propeller Efficiency (η):

Thrust (T):

Freestream Velocity (v₀):

Power delivered to the propeller (P):

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.