1. Which two aeronautical engineers, serving opposing sides during World War II, independently invented the jet engine?

2. Which early U.S. and Soviet jet fighters engaged in history’s first large-scale jet fighter combat?

3. Which World War II weapon did U.S. General George S. Patton call “the greatest battle implement ever devised”?

4. Who was responsible for some of the earliest, widely influential development of military rockets?

5. What was the most successful vertical and short take-off and landing, or V/STOL, jet developed during the 1950s–1970s?

6. Which ballistic missile, fitted to submarines beginning in 1979, became the principal sea-based nuclear weapon of the United States?

7. The launching of which naval vessel started a race to produce turbine-powered “all-big-gun” warships?

8. What is the oldest still-floating commissioned warship in the world?

9. What did Lieutenant Jan J. Wichers of the Dutch navy invent in 1933 when he advanced the idea of supplying air to submarine diesel engines through a tube?

10. Which weapon, commonly employed by urban guerrilla fighters, is known in Russian as the Ruchnoy Protivotankovy Granatomet?

11. What was given the nickname “Stalin Organ”?

12. What fighter plane of World War II came out of a design for a racing seaplane?

13. In 1937 Andrey Nikolayevich Tupolev was arrested by the Soviet secret police but was allowed to earn his freedom by designing what instruments of war?