Gust Factor Calculator

Formula

The formula to calculate the Gust Factor (GF) is:

\[ GF = GWS - SWS \]

Where:

\( GF \) is the gust factor (knots)
\( GWS \) is the gust wind speed (knots)
\( SWS \) is the sustained wind speed (knots)

What is a Gust Factor?

A gust factor is a simple measurement of the difference between sustained wind speeds and gusting wind speeds on a given day. The gust factor is used by aircraft to adjust for landing parameters on windy days.

Example

Let's say the gust wind speed (GWS) is 30 knots, and the sustained wind speed (SWS) is 20 knots. Using the formula:

\[ GF = 30 - 20 = 10 \text{ knots} \]

So, the gust factor (GF) is 10 knots.