TTO,
The Wessex was by no means always a twin. It started off in life as a single and in its life as the Wessex 1 or Wessex 3 was used for ship-borne SAR or anti-submarine duties. The Wessex 2 (RAF) and Wessex 5 (RN) came a lot later. The Wessex 60 was the civil variant of the Wessex 2/5. It had a lot more power than the S58T, but the 58T didn't suffer the intake icing problems of the Wessex and was also much smoother as it had bifilars. When I'm next on leave I'll look at my old photos and logbooks as I flew all the Bristow 58Ts. As SAS says, Queen of the Skies
