USAF Ranks
From Trekipedia
Enlisted Ranks
Airman Basic
Airman
Airman First Class
Senior Airman
Sergeant
Staff Sergeant
United States Air Force Staff Sergeant (TOS 21)
Technical Sergeant
Master Sergeant
Senior Master Sergeant
Chief Master Sergeant
Officer Ranks
Second Lieutenant
First Lieutenant
Captain
United States Air Force Captain (TOS 21)
Lieutenant Colonel
United States Air Force Lieutenant Colonel (TOS 21)