"RAF Tengah" and "Tengah Airfield" redirect here.Tengah Air Base (IATA: TGA, ICAO: WSAT) is a military airbase of the Republic of Singapore Air Force located at Tengah, in the western part of Singapore. The airbase is the most important airfield of the RSAF as it houses the bulk of RSAF's fixed-wing frontline squadrons, home to all of RSAF's Airborne early warning and control (AEWC) assets, most of the F-16C/D Fighting Falcons and a large number of UAVs.