Helicopter Westland Whirlwind HAS.7 Serial wa303 Register XN357 used by Fleet Air Arm RN (Royal Navy). Built 1960. Aircraft history and location Aircraft History XN357 mar60 Fleet Air Arm 1960-03-10Westland Whirlwind HAS.7, c/n WA303, ff: 10Mar60 del Royal Navy Fleet Air Arm as XN357, 15Mar60 w/o 07Feb61. 1961-02-07 A North Channel Accident HAS.7 May 1960 to 719 Sq / 626, until ditched and sank c 12nm ESE of Torr Head, NI on 7 Feb 1961 719 NAS Send Updates Use APP to upload photo @ (optional) When Now? / / Send