One additional thought-- and certainly don't mean to discourage you , but why do you want to be an Aero Engineer ? I ask, because I went to USNA thinking I wanted to be an Aero Engineer, but also knew that my interests and skills were more aligned with Poli Sci. I remember going through a series of lectures about the various majors, and a Poli Sci professor looking out at us, and asking how many were considering Aero because they want to be pilots.... a couple of us stuck up our hands, and he laughed...told us that was total BS, and that you don't need an Aero degree to be a pilot (and concluded with he knows, because he was the "best damned pilot in the Marine Corp..."). I never looked back.
IF you truly want to be an Aero major, go for it....but that being said, don't go to USNA just because you want to be an Aero Major. Your major at the USNA is really service as a Navy/Marine Corps officer. Sure, you will get a great education, whatever major you pursue, but if you aren't 100% dedicated to being a Naval /Marine Corps officer, USNA may not be the place for you. You are doing the right thing, asking questions about post graduation assignments ....I encourage you to read as much as you can to understand what you are getting into.