Helicopter Westland Whirlwind HAS.7 Serial wa281 Register XN301 used by Fleet Air Arm RN (Royal Navy). Built 1959. Aircraft history and location Aircraft History XN301 nov59 Fleet Air Arm 1959-11-06Westland Whirlwind HAS.7, c/n WA281, ff: 06Nov59 del Royal Navy Fleet Air Arm as XN301, 30Nov59 w/o 21Nov61. 1961-11-21 A Hong Kong Port Accident Jan 1960 to 848 Sq / M-B 21 Nov 1961 ditched off HMS Bulwark during a formation landing, whilst in Hong Kong Harbour Send Updates Use APP to upload photo @ (optional) When Now? / / Send