Aviation history

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Across
  1. 3. to repeat a message received in order to be clear.
  2. 4. radio nickname for a flight or a person sending a message.
  3. 8. area designated for landing and take offs.
  4. 9. device used to record conversations in the cockpit uring a flight.
  5. 11. collision between an aircraft and an animal.
  6. 17. use of fear to create chaos and mass cassualties.
  7. 18. member of the aircrew, they have absolute responsability and authority on a flight.
  8. 19. member of the aircrew that helps their colleague to perform their duties.
  9. 20. Any flying device.
  10. 21. incorrect presence of a vehicle, person or aircraft on the runway.
Down
  1. 1. What color is the "black box"?
  2. 2. person who serves and manage passengers on a plane.
  3. 5. device worn to help you float in case you land on water.
  4. 6. Turns on a machine and make it work.
  5. 7. Precision Approach Path Indicators
  6. 10. asking for something politely.
  7. 12. First flying device in history, from Asia.
  8. 13. collision between an aircraft and a bird.
  9. 14. Inventor of the ornithopter.
  10. 15. area for aircrafts to taxi.
  11. 16. the action of flying low over a place.