Wind Correction Angle Calculator

Calculate Wind Correction Angle (WCA)





Formula

The formula to calculate the wind correction angle (WCA) is:

\[ WCA = \sin^{-1} \left( \frac{WS \cdot \sin(AWA)}{TAS} \right) \]

Where:

Wind Correction Angle Definition

A wind correction angle is an angle that an aircraft should adjust its flight to when under the force of the wind in order to hold the same true bearing as if there was no wind at all.

Wind Correction Angle Example

For example, if the wind speed (WS) is 20 knots, the acute wind angle (AWA) is 30 degrees, and the true airspeed (TAS) is 150 knots, the wind correction angle (WCA) can be calculated as follows:

\[ WCA = \sin^{-1} \left( \frac{20 \cdot \sin(30)}{150} \right) \approx 3.82 \text{ degrees} \]