Helicopter Westland Sioux Serial wa315 Register G-BFEI XT156 used by Army Air Corps AAC (British Army). Built 1965. Aircraft history and location Aircraft History XT156 Army Air Corps AAC Sioux AH.1 G-BFEI - 1994-07-06Bell 47G-3B-1 Sioux AH.1 c/n wan6 Trent Helicopters Ltd Oct77-Jul94 Send Updates Use APP to upload photo @ (optional) When Now? / / Send