One way to pursue a career in aerospece would be to do a residency in Aerospace Medicine (a sub-board of prev. med.) such as the one at Wright State:
http://www.med.wright.edu/asm/res/r.htm
More realistically, you will look for a residency that will let you fly. There are three (basic) ways that residencies set up flight:
1. The residents fly as a member of the crew at their home institution's helicopter. These programs come in three flavors. Either there is always a resident on every flight or there is a physician on every flight, but they might be a resident moonlighting from another program or a non-resident physician or the flight crew composition may vary and not always include a physician. Programs that have these set ups include St. Vincent's, Cincinnati, Mayo, and Case Western (among others).
2. The residents fly as part of the flight crew on a scheduled resident rotation or as moonlighters at other programs. This is definately a subtle difference from #1. Akron General (and others) are set up this way.
3. The residents fly as observers. While it is true that if a crew "trusts you" you will be allowed to help out, you are dead weight, so if someone is going to be left on the scene to make liftoff weight you are hitching a ride. Similarly, if you disagree with the treatment, have a crew chief in a bad mood, etc., you won't be doing much. I know this sounds harsh, and is probably an overstatement, but I think that the best part of flight is the chance to be somewhat "on your own" in terms of dx and management. I don't know that the observer role does this as effectively.
When I was applying, I found that several programs that touted "flight" in fact had observation flights. So I learned to ask. You should decide the set up you are looking and specifically ask during the application process.
- H