
For areas the A-10’s cannon can penetrate, you should color it green. Red is for areas you can’t penetrate at a given angle of attack. And black is for areas that are “ungood, you must learn to hate these areas,” the book states.

For areas the A-10’s cannon can penetrate, you should color it green. Red is for areas you can’t penetrate at a given angle of attack. And black is for areas that are “ungood, you must learn to hate these areas,” the book states.