Behind the line from 3 to 9, and coming down....
There are two types of aircraft - fighters and targets.
Basic Flying Rules:
No one has ever collided with the sky.
An airplane flies because of a principle discovered by Bernoulli, not Marconi.
The only time you have too much fuel is when you're on fire.
Stay out of clouds. The silver lining everyone keeps talking about might be another airplane going in the opposite direction. Reliable sources also report that some clouds have solid centres.
In the ongoing battle between objects made of aluminum going hundreds of miles per hour and the ground going zero miles per hour, the ground has yet to lose.