Fight investigation

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Across
  1. 5. the three axis
  2. 6. heavier than air machine
  3. 7. when airplane wing is higher than another to turn around
  4. 8. where cre, passanges and cargo are in
  5. 9. the shape of the airplane
  6. 11. steering left or right
  7. 13. when the object is not moving forward or rotating
  8. 15. when flow of air is smooth
  9. 16. where pilots are in
  10. 18. to change speed of the engine
  11. 21. gravitational force
  12. 22. to change the three axis
Down
  1. 1. level the airplane to tilt the wings
  2. 2. when airplane goes up or down
  3. 3. when airplane turn right or left
  4. 4. force acting on one square meter
  5. 5. lighter than air machine
  6. 10. flow of air above or under the object
  7. 12. when the flow of air is not smooth
  8. 13. steering up or down
  9. 14. the mass per unit volume of a substance
  10. 17. force that pulls the airplane forward
  11. 19. force that pulls the airplane upward
  12. 20. force that is against the airplane's direction
  13. 21. something birds have and helps them to fly