Across
- 2. a spinning rotor behaves like one
- 4. is the type of angle the angle of incidence is
- 6. are used to compensate for lift differences
- 8. occurs when each rotor blade is producing the same amount of lift
- 9. the inner end of blade attached to the hub
- 11. the outer end of the blade furthest from the hub
- 15. blade that is moving in the same direction as the helicopter
- 17. occurs when a force on a gyroscope is felt 90 degrees ahead in the direction of rotation
- 19. the pitch when no lift is produced
- 20. changes the pitch of the rotor blades independently
- 22. flow of air downward after air is accelerated over each blade
- 23. rotor system where blades can feather and flap
- 24. blades used to allow a helicopter to fly
- 27. rotor system where blades can feather, flap, lead, and lag.
- 28. relative wind caused by the rotation of the rotor blades
Down
- 1. speed
- 3. plate the modifies the pitch of the blades
- 5. changes the pitch angle of all rotor blades
- 7. is the type of angle the angle of attack is
- 10. rotor blades on the back of the helicopter
- 12. effect that occurs when blades flap and move closer or farther away from the axis of rotation
- 13. rotor blades on top of the helicopter
- 14. of lift occurs when the advancing blade creates more lift than the retreating blade
- 16. the direction advancing blades flap
- 18. blade that is moving in the opposite direction as the helicopter
- 21. rotor system where blades can only feather
- 25. located on the mast
- 26. the direction retreating blades flap