1. In what year did the first nonmilitary jetliner fly?

2. When did the first supersonic flight take place?

3. In what year was the first balloon launched?

4. In which country did Douglas "Wrong Way" Corrigan land his aircraft in 1938?

5. What plane did Britain and France jointly build?

6. In which state was the first sustained manned flight achieved?

7. In which war were airplanes first widely used?