Helicopter Bell UH-1H Iroquois Serial 13157 Register 71-20333 used by US Army Aviation Army. Aircraft history and location Aircraft History 71-20333 US Army Aviation 1995D/1-223Avn./33B 1-223 AVN 2018-07-28 on display at the Tom St. Onge Vietnam Veterans Museum & Park in Hermansville, MI. Send Updates Use APP to upload photo @ (optional) When Now? / / Send