Inventions - Aviation
1. Aeroplane------------1903 Orville and Wilbur Wright
2. Airship (non-rigid)---1852 Henri Giffard
3. Airship (rigid)--------1900 G.F. vonZeppelin
4. Hot air balloon-------1783 Jacques and Joseph Montgolfier
5. Gliders----------------1853 Sir George Cayley
6. Helicopter------------1924 Etienne Oehmichen
7. Hovercraft------------1955 Christopher Cockerrell
8. Jet Engine------------1937 Sir Frank Whittle
9. Parachute------------1797 AJ Garnerier
10. Rocket--------------1926 Robert Goddard
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