AAITC Airmen Aircrew Initial Training Course which became
NCAITC Non-Commissioned Aircrew Initial Training Course
DI Is and always has been Drill Instructor
DS Directing Staff
FS Is and always has been Flight Sgt
Flt Cdr Flight Commander
ALM Air LoadMaster
AEOp Air Electronics Operator
Eng Air Engineer
WSOP Some new fangled title that devalues the original trades, they now wear a badge not a brevet
