Helicopter Bell UH-1H Iroquois Serial 13435 Register 73-21747 used by US Air Force USAF ,US Army Aviation Army. Aircraft history and location Aircraft History 73-21747 US Army Aviation US Army cnvt to UH-1V Bell UH-1V Iroquois type UH-1V after service Army to USAF TH-1H US Air Force 2018-04-12 A KLAL SUN n FUN 2018 Bell TH-1H Iroquois USAF 10-15apr18 TH-1H type at SUN n FUN 2018 Send Updates Use APP to upload photo @ (optional) When Now? / / Send