Helicopter Sikorsky S-70B Serial 70-3131 Register 263 used by Republic of Singapore Air Force RSAF. Aircraft history and location Aircraft History For 263 see also has.2 fn 039 UH-1B 1201 mk25 020 w/o 1982 uh-1d 8692 w/o 1991 MD530G 0263FF 1973 Commando wa 783 263 Republic of Singapore Air Force 2011-12-06RSAF 123 Sqn 06dec11 at Langkawi, Malaysia Send Updates Use APP to upload photo @ (optional) When Now? / / Send