Find wind direction AND speed -- 1 Min Wings

We all know that a wind sock can tell us the direction of the wind. But did you know that by looking at the wind sock, you can also estimate the velocity and speed of the wind? A regulation windsock is broken down into different stages that allow it to extend under certain wind velocities. Speeds of 0, 3, 6, 9, 12 and 15 can be determined just by looking. So next time you’re at the airport, and about to go flying in your airplane, check the windsock direction AND speed, before you ever have to listen t