Helicopter Westland Wessex HAS.1 Serial wa 35 Register XM876 used by Fleet Air Arm RN (Royal Navy). Built 1961. Aircraft history and location Aircraft History XM876 Fleet Air Arm Westland Wessex HAS.1, c/n WA035, f/f:? del Royal Navy as XM876, 08/08/1961 w/o 27/11/1961. ff 3 Aug 1961 as HAS.1. dd Aug 1961 RNAY Fleetlands, 819Sq/321 by Oct 1961. 1961-11-27 A Rockall Bank off Rockall Bank ditched in N Atlantic during night exercise while temporarily embarked on USS Essex (CVS-9), with 819 Sq/321 on 27 Nov 1961. Send Updates Use APP to upload photo @ (optional) When Now? / / Send