Helicopter Westland Whirlwind HAS.7 Serial wa252 Register XM661 used by Fleet Air Arm RN (Royal Navy). Built 1958. Aircraft history and location Aircraft History XM661 Fleet Air Arm 1958-11-26Westland Whirlwind HAS.7, c/n WA252, ff: 26Nov58 del Royal Navy Fleet Air Arm as XM661, 09Dec58 w/o 04Feb60. 700(H)Sq May 1959, 737 Sq/774-PO by Oct 1959 ditched and sank off Portland 4 Feb 1960 737 NAS Send Updates Use APP to upload photo @ (optional) When Now? / / Send