Helicopter Westland Whirlwind HAR.10 Serial wa389 Register XP401 used by Royal Air Force RAF. Built 1962. Aircraft history and location Aircraft History XP401 Royal Air Force 1962-08-27Westland Whirlwind HAR.10, c/n WA389, ff: 27Aug62 del Royal Air Force as XP401, 05Sep62 soc 06Feb76 perished Yeovilton, 1978. Send Updates Use APP to upload photo @ (optional) When Now? / / Send