Brown joined the
U.S. Navy after his internship at the
Medical University of South Carolina. Upon completion of
flight surgeon training in 1984, Brown reported to the Navy Branch Hospital in
Adak, Alaska, as Director of Medical Services. He was then assigned to
Carrier Air Wing Fifteen which deployed aboard the
aircraft carrier in the Western Pacific. In 1988, Brown became the only flight surgeon in a 10-year period to be chosen for pilot training. He was ultimately designated a
Naval Aviator in 1990 at
NAS Chase Field in
Beeville, Texas, ranking number one in his class. Brown was then sent for training and carrier qualification in the
A-6E Intruder. In 1991, he reported to the Naval Strike Warfare Center at
NAS Fallon,
Nevada, serving as a Strike Leader Attack Training Syllabus Instructor and a Contingency Cell Planning Officer. Brown was also qualified in the
F/A-18 Hornet and deployed from Japan in 1992 aboard flying the A-6E with
VA-115. In 1995, he reported to the
U.S. Naval Test Pilot School at
NAS Patuxent River, Maryland as their flight surgeon, where Brown also flew the
T-38 Talon. Brown logged over 2,700 flight hours with 1,700 in high-performance military aircraft. He was qualified as the first pilot in NASA T-38 aircraft and held a
Federal Communications Commission (FCC) issued Technician Class
amateur radio license with the
call sign KC5ZTC. ==NASA career==