Across
- 2. The push that moves a vehicle forward.
- 4. Wing part that helps with turning.
- 6. Air resistance that slows things down.
- 8. Support that strengthens wings or body.
- 11. What makes a vehicle go forward.
- 12. How high something is.
- 13. A force that makes things rotate.
- 15. Main body of an airplane where people sit.
- 16. Type of plane with front wings.
- 20. Resistance to changes in motion.
Down
- 1. Unit of speed, like how fast sound travels.
- 3. The ability to stay steady in the air.
- 5. The process of starting to move.
- 7. Heavy stuff to help with balance.
- 9. Bumpy air that makes flights shaky.
- 10. The center point of an object.
- 14. Moving smoothly without an engine.
- 17. Study of how things move through the air.
- 18. Surfaces on a plane's tail for stability.
- 19. The original model or design.