If you're a typical undergraduate student, you should apply during the fall term of your sophomore year.
Scholarships are available on a competitive basis for both undergraduate and graduate students.
There's no obligation to apply. We can give you credit for Army or Navy ROTC and other active duty military training. Pilot and navigator training start after you graduate. Pilot and navigator candidates are selected during cadets' junior year. There are additional stringent physical examination requirements for pilot and navigator candidates.