View Mission Boundaries:
Press Shift-Alt-A for a better view of the area your plane must fly over.

More Aircrafts:
Start flight in Quick Flight; then in flight press "M" 3 times. You will get to the Quick flight screen again. Just choose 'Aircraft' and check out another model to fly in.

Boldly Go:
While in flight type SULU and hear the theme to Star Trek.