aircraft knowledge

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Across
  1. 2. fixed wing section
  2. 4. the force needed to overcome the resistance of air
  3. 7. trouble or malfunction
  4. 8. movement on the vertical axis
  5. 9. the resistance of air
Down
  1. 1. lateral movement of an aircraft
  2. 3. control controls rotation about the vertical axis of the aircraft
  3. 5. a reduction of the lift angle
  4. 6. controls movement about the lateral axis of an aircraft