Across
- 2. tail of an aircraft
- 4. force produced by a speedbrake
- 6. directional flight control
- 7. rear
- 9. center
- 11. when an A/C moves on the ground
Down
- 1. air sonar
- 3. speed of sound
- 5. A/C parking
- 8. force to push the A/C forward
- 10. force produced by wings
- 12. shape of a wing