Helicopter Westland Sioux Serial wa410 Register XT498 used by Army Air Corps AAC (British Army). Built 1966. Aircraft history and location Aircraft History XT498 Army Air Corps 1966-10-12 A EGVPAAC Sioux AH.1 alt c/n wap120 d/d 1968-06-14 A EGVPAAC Photographed at Middle Wallop when serving with the Advanced Rotary Wing Flight (ARWF) 1969-09-20 B EGUBAAC - Displayed at RAF Benson Airshow 1969 Send Updates Use APP to upload photo @ (optional) When Now? / / Send