yeah, i know a NFO (captain now) who became a NFS. he got into USUHS, then went to fort benning for basic jump school, then became a NFS after med school. he went through all the branches and almost became a naval astronaut, but for the sake of the family and a new born child, he gave that up. all the flying that he was able to do was only for about 4 years though... after getting out of astronaut program, he as selected for f-14 RIO and a-6 NFO. he's very disappointed that he didn't get to fly more. the doctor's friend (who was an NA and a doctor) actually flew s-3's for about 12 years before applying for med school. sure enough, he never got to fly again. so, to answer your question mizzou, THINK HARD B4 DECIDING!!! oh, and the lighter side of the two doctors' story is that they make butt load of money!!! one's a naval plastic surgeon, and one's now (retired) a private anesthesiologist.