The Belgian Military Aircraft Database contains a number of aeronautical terms and abbreviations which are explained here:
1Sgt: Eerste Sergeant/Premièr Segeant (First Sergeant) 1SM: Eerste Sergeant Majoor/Premièr Segeant Major (First Sergeant Major) ADC: Adjudant Chef Adjt: Adjudant AéM: Aéronautique Militaire AFB: Air Force Base BAF: Belgian Air Force BAKA: Basis -Base Kamina BDRT: Battle Damage Repair Training BLu: Belgische Luchtmacht C/S: Call Sign c/n: Construction Number Capt: Capitaine (Captain) Cdt: Commandant Col: Colonel CRC: Control and Reporting Center Cpl: Caporal (Corporal) DACT: Dissimilar Air Combat Tactics ECECh: Ecole de Chasse (Fighter School) EVS: Elementaire Vliegschool (Elementary Flying School) Escadrille: Squadron Gen: Generaal, Général (General) Gen Maj: Generaal Majoor/Général Major (Major General) JVS: Jachtvliegschool (Fighter School) Kapt: Kapitein (Captain) KLu: Koninklijke Luchtmacht (Dutch Air Force) Kol: Kolonel (Colonel) Kpl: Korporaal (Corporal) Lt: Lieutenant Lt Col: Lieutenant Colonel Lt Gen: Lieutenant Generaal/Lieutenant Général (Lieutenant General) Lt Kol: Lieutenant Kolonel (Lieutenant Colonel) MAAG: Military Assistance Advisory Group Maj: Major MCVZ: Militair Centrum voor Zweefvliegen (Military Gliding Center) MDAP: Mutual Defence Air programme MLU: Midlife Update OCU: Operational Vonversion Unit OLt: Onderlieutenant (Sub Lieutenant) OTU: Operational Training Unit QRA: Quick Reaction Allert RAF: Royal Air Force RCAF: Royal Canadian Air Force RDAF: Royal Danish Air Force SAAF: South African Air Force SAR: Search & Rescue Sgt: Sergeant SLt: Sous Lieutenant (Sub Lieutenant) SLV: School Licht Vliegwezen (School Light Aviation) SOC: Stricken Off Charge SqSqn.:: Squadron TLP: Tactical Leadership Program TOC: Taken On Charge TTF: Target Towing Flight UAV: Unmanned Aerial Vehicle USAAC: United States Army Air Corps USAAF: United States Army Air Force USAF: United States Air Force VFR: Visual Flight Rules WFU: Withdrawn Fom Use