The expression "primary flight control" applies to the: 1) elevator 2) speed brake 3) lift-augmentation devices 4) roll spoilersThe combination that regroups all of the correct statements is:
Domanda 9, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| 1, 4 |
| 2, 3 |
| 1, 2, 3, 4 |
| 2, 4 |
