Introduction to Flight

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Across
  1. 2. Location of Hindenburg disaster
  2. 6. World War Two aircraft that reached speeds over four hundred mph
  3. 7. Frenchman who crossed the English Channel in nineteen oh nine
  4. 10. Speed record-breaking experimental aircraft
  5. 14. Inventor of the first successful hot air balloon
  6. 16. First successful hot air balloon flight year
  7. 19. Country of origin of the SR seventy-one Blackbird
  8. 21. Achievement in nineteen forty-seven by Chuck Yeager
  9. 23. First aircraft with three-axis control
  10. 25. Santos-Dumont's nationality
  11. 27. Famous Italian Renaissance visionary
  12. 29. Gas used in early balloons
Down
  1. 1. Speed of the Concorde at cruise
  2. 3. Supersonic British airliner
  3. 4. Term meaning controllable in air travel
  4. 5. First aircraft to exceed Mach one
  5. 8. Location of Wright brothers' first successful flight
  6. 9. Device essential for powered flight
  7. 11. Gas used in modern airships
  8. 12. Aircraft associated with Chuck Yeager
  9. 13. Brothers who achieved first powered flight
  10. 15. Altitude achieved by the X fifteen in kilometers
  11. 17. Wright brothers' mechanic who built their engine
  12. 18. Ancient culture known for flight mythologies
  13. 20. City where the Wright brothers were from
  14. 22. Invention mimicking bird flight but failed
  15. 24. Metal used in early airship construction
  16. 26. Famous German airship designer
  17. 28. Type of aircraft crucial in World War Two