Helicopter Bell UH-1H Iroquois Serial 13895 Register 228 used by Republic of Singapore Air Force RSAF. Aircraft history and location Aircraft History For 228 see also UH-1C 1898 th-67a 5265 mi-171sh 171S00081913102 1962 ab204b 3017 1981 mk86 228 228 Republic of Singapore Air Force RSAF Send Updates Use APP to upload photo @ (optional) When Now? / / Send