Helicopter Westland Whirlwind HAS.7 Serial wa274 Register XN262 used by Fleet Air Arm RN (Royal Navy). Built 1959. Aircraft history and location Aircraft History XN262 Fleet Air Arm 1959-09-14Westland Whirlwind HAS.7, c/n WA274, ff: 14Sep59 del Royal Navy Fleet Air Arm as XN262, 01Oct59 w/o 16May64. Send Updates Use APP to upload photo @ (optional) When Now? / / Send