Helicopter Bell UH-1H Iroquois Serial 13725 Register 74-22401 used by US Air Force USAF ,US Army Aviation Army. Aircraft history and location Aircraft History 74-22401 US Army Aviation US Army 2011 US Air Force Bell TH-1H Iroquois USAF, UH-1H conv to TH-1H 2011 23 FTS 23 FTS Send Updates Use APP to upload photo @ (optional) When Now? / / Send