- Battleships, carriers, and destroyers make bad landing craft.
- An F-16 can accelerate while going straight up.
- Going straight up in a F-16 uses a lot of fuel.
- F-16s make bad gliders.
- If put into a nosedive, a 747 is hard to pull up.
- Do not drop atomic bombs from a low altitude.
- A helicopter and a tree may not occupy the same space at the same time.