Helicopter Westland Sioux Serial wa417 Register D-HHHH XT505 used by Army Air Corps AAC (British Army). Built 1966. Aircraft history and location Aircraft History XT505 Army Air Corps AAC Sioux AH.1 Unk To D-HHHH For D-HHHH see also as350b3 4136 w/o 2017 aw109s 22117 aw109e 11708 D-HHHH - based Oedheim, Germany Send Updates Use APP to upload photo @ (optional) When Now? / / Send