Helicopter Westland Whirlwind HAS.7 Serial wa221 Register XL871 used by Fleet Air Arm RN (Royal Navy). Built 1958. Aircraft history and location Aircraft History XL871 Fleet Air Arm 1958-05-14Westland Whirlwind HAS.7, c/n WA221, ff: 14May58 del Royal Navy Fleet Air Arm as XL871, 29May58 w/o 23Oct58, soc 30Oct58. Send Updates Use APP to upload photo @ (optional) When Now? / / Send