Ground Speed Calculator







Formula

The formula to calculate the ground speed is:

\[ V_g = \cos(a) \times v_{tas} + ws \]

Where:

Ground Speed Definition

Ground speed is defined as the horizontal component of the velocity of an aircraft relative to the Earth's surface.

Example Calculation

Example:

Step 1: Convert the angle to radians:

\[ a = 30^\circ = \frac{\pi}{6} \text{ radians} \]

Step 2: Calculate the ground speed:

\[ V_g = \cos\left(\frac{\pi}{6}\right) \times 150 + 20 \approx 129.9 + 20 = 149.9 \text{ knots} \]