Dude, almost 80% of the dudes in my flight school class weren't tech majors, myself included. Just major in what you want and apply. I was a 2 year guy and I applied with a major in...wait for it...theatre. (Begin jokes here) Trust me, I got a pinched eyebrow when I told them that I wanted to fly, but once they saw that my GPA was at 3.7, they couldn't resist. Also, I DIDN'T have to take calc and physics....EVER. That's because my scholarship was funded by the state and not the Navy. So, to summarize, yes, you can get a commission without a technical degree. Yes, you can select aviation. Yes, there are many different types of scholarships out there. Yes, you will get your wings without knowing jack about differential equations and Newton's laws of motion. I sure did. Good luck.