Across
- 4. one point where all of the lift can be said to be centered
- 9. drag due to the creation of lift
- 10. an aircraft that flies by flapping its wings
- 11. fuselage-mounted horizontal surface forward of the main wing
- 15. moveable part of the horizontal tail; controls pitch
- 16. sudden reduction in lift when an airfoil reaches or exceeds the critical angle of attack
- 18. pitch divided by diameter
- 21. moveable part of the vertical fin; controls yaw
- 22. a wing that has an upward curve on the lower surface
- 23. a yaw-aggravated stall that results in a rotation about the vertical axis
- 27. mass of an aircraft divided by the wing area
- 28. the ratio of span to mean chord
- 29. a measure of the curvature of the airfoil
- 30. imaginary straight line connecting the leading edge and trailing edge of a wing
- 31. the angle between the left and right wings
Down
- 1. fixed or static part of the vertical tail
- 2. the focal point of the lift force
- 3. the movement of an airplane relative to the ground
- 5. a rising air current produced when the Earth's surface is heated
- 6. an aircraft's ability to maintain/return to its original flight path after a disturbance
- 7. the angle at which the chord of the wing meets the relative wind
- 8. the angle between the chord line and a reference line along the fuselage
- 12. an aircraft with a free-rotating rotor and a propeller
- 13. how far a propeller moves forward in one revolution
- 14. drag created by an object moving through a fluid
- 17. airplane with the wing supported above the fuselage by struts
- 19. the difference in angle between the main wing and the horizontal stabilizer
- 20. imaginary point where the total weight of an object may be thought to be concentrated
- 24. the body of an aircraft
- 25. inclination of an aircraft's wings relative to the horizontal plane
- 26. resists the rotation of the prop