Due to the rotation of the Earth, the apparent drift of a horizontal free gyroscope at a latitude of 45°N is:
Domanda 66, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license
| 2° per hour to the right. |
| 15° per hour to the left. |
| 11° per hour to the right. |
| 7,5° per hour to the left. |
