This is the highest a Squadron CO can send a cadet. If a squadron is split up into flights then a Flt/Sgt will be the non-commissioned officer in command (NCOIC) of a flight. The emblem is the same as Sergeant but with a silver crown above it.
Promotion to CWO can only be made by the Commanding Officer of a Wing. There is a set number of CWOs each wing can have - one per squadron plus two thirds. The emblem of a Cadet Warrant Officer is a crown surrounded by laurel branches. To be a CWO you must be over 18. CWOs usually take over all charge of all flight in a Squadron. If a cadet gets to the rank of Cadet Warrant Officer, he or she can stay in the ATC until the age of 22, rather than 20 for any other rank