Usual abbreviation in Air Navigation
| Abbreviation | Full |
|---|---|
| MH | magnetic heading |
| MC | magnetic course |
| MTK | magnetic track |
| TAS | true airspeed |
| WS | wind speed |
| WD | wind direction |
| WA | wind angle |
| GS | ground speed |
| DA | drift angle |
| XTK | cross track distance |
| TKE | cross track error |