Across
- 1. How many sets of rotating wings does a helicopter need to fly?
- 4. Helicopters usually cannot fly above this height
- 6. What are the rotating wings of a helicopter called? (First Word Only)
- 7. Helicopters can access _ _ _ _ _ places unlike airplanes
- 9. A helicopter can also be called a _ _ _ _ _ _ _
Down
- 2. The combined load of the helicopter is this
- 3. For every action, there is an _ _ _ _ _ and opposite reaction
- 4. This action is produced by the rotation of the helicopters blades
- 5. In a crash where the engine does not work, pilots use this to their advantage
- 8. Can helicopters fly upside down?