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