Helicopter Westland Wessex HU.5 Serial wa168 Register XS494 used by Fleet Air Arm RN (Royal Navy). Built 1964. Aircraft history and location Aircraft History XS494 Fleet Air Arm Westland Wessex HU.5, c/n WA168, f/f:? del Royal Navy as XS494, 29/05/1964 xfer 771Sq, 521-CU, Culdrose, unk w/o 04/04/1968. 771 NAS Send Updates Use APP to upload photo @ (optional) When Now? / / Send