Helicopter Westland Whirlwind HAS.7 Serial wa203 Register XL841 used by Fleet Air Arm RN (Royal Navy). Built 1957. Aircraft history and location Aircraft History XL841 Fleet Air Arm 1957-11-22Westland Whirlwind HAS.7, c/n WA203, ff: 22Nov57 del Royal Navy Fleet Air Arm as XL841, 27Feb58 soc 17Jun65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send