The Air Force is divided into enlisted airmen (with ranks E-1 to E-9 ) and commissioned officers (O-1 to O-10). Each rank reflects level of responsibility, leadership authority, pay grade and eligibility for promotion. The Air Force rank structure splits into two main groups: enlisted airmen and commissioned officers. Enlisted airmen (E-1 to E-9) handle most of the hands-on work — technical jobs, admin tasks and running day-to-day operations. As they move up, especially into the NCO and senior