In November 2006, the Republic of Singapore Air Force (RSAF) awarded a service contract to Lockheed Martin Simulation, Training and Support (LMSTS) to deliver 19 PC-21 aircraft, to support the RSAF's Basic Wings training course at RAAF Base Pearce in Australia under a public–private partnership (PPP) arrangement, replacing the SIAI-Marchetti S.211. Singapore was the first export customer for the PC-21. On 21 January 2008, the first RSAF PC-21 completed its flight test prior to being accepted into service. On 13 July 2008, the type began to provide the RSAF with basic flying training, by which point a further six aircraft had been delivered.