Helicopter Bell UH-1H Iroquois Serial 11551 Register 69-15263 used by US Air Force USAF ,US Army Aviation Army. Aircraft history and location By Gerrit Kok Aircraft History 69-15263 US Army Aviation 1981-04US Army Apr81 with 6th (Air Combat) Cavalry Brigade, Fort Knox, KY to USAF US Air Force USAF 2006 23 FTS 23 FTS Send Updates Use APP to upload photo @ (optional) When Now? / / Send