Any wind splits into two parts: one along the runway and one across it. Drag the wind arrow to change the wind. Drag the compass ring to turn the runway.
| Angle off | Crosswind | Headwind |
|---|---|---|
| 10° | 1/6 | All |
| 20° | 1/3 | |
| 30° | 1/2 | Use exact |
| 40° | 2/3 | |
| 50° | 5/6 | |
| 60°+ | All |
Rule of thumb: the share of the wind that's crosswind is the angle off ÷ 60, up to 60°. It's an estimate, but you can work it out in the cockpit.
Work out the crosswind in your head, then check it.