It really depends. But whoever says that all AF officer's have technical degrees is incorrect. I have a BA in English, and a lot of the folks I commissioned with had other non-tech degrees. It's probably about a 50-50, or maybe 40-60 split, of non-technical degrees to engineering, math, and science majors.

You won't be a test pilot with a liberal arts degree, or an astronaut, but that's probably about it.

The Air Force is a diverse world, and there are lots of different degrees that can help you. Talk to a recruiter--the biggest problem is getting a slot to go to OTS--there's only so many spaces available.