Senior aircraftman
![A senior aircraftman reservist.](/Images/godic/202502/10/RAF_Reservist_MOD_451565172331.jpg")
![RAF senior aircraftman rank insignia as it appears on dress uniform](/Images/godic/202502/10/RAF-SAC-OR-22331.png")
Senior aircraftman or senior aircraftwoman (both SAC) is a rank in the Royal Air Force, ranking between leading aircraftman and senior aircraftman technician (SAC(T)) (although SACs in non-technical trades progress directly to corporal) and having a NATO rank code of OR-2. The rank, which is non-supervisory, was introduced on 1 January 1951. The rank badge is a three-bladed propeller.