Helicopter Bell UH-1H Iroquois Serial 13448 Register 73-21760 used by US Air Force USAF ,US Army Aviation Army. Aircraft history and location Aircraft History 73-21760 US Army Aviation US Army 1995 D/1-223Avn./60L toward USAF 1-223 AVN US Air Force USAF Send Updates Use APP to upload photo @ (optional) When Now? / / Send