Helix Angle Calculator

Helix Angle (φ):

Freestream velocity (v₀):

Angular velocity (ω):

Radial distance from the hub(r):

How This Is Calculated

$$ tan(\phi) = \frac{v_0}{\omega r} $$ where:

φ = Helix Angle (degrees)

v₀ = Freestream velocity (m/s)

ω = Angular velocity (rad/s)

r = Radial distance from the hub (m)

Assumptions

The system is in steady state.
Fluid is incompressible.
The propeller is ideal.
The velocity distribution is unifrom.
Propeller flexibility is ignored.

Related Calculators

Helical Tip Velocity

Induced Drag

Induced Velocity

Propeller Efficiency

Torque