X-Plane Kent Surrey Sussex Air Ambulance AW139 1.0. This is a Kent Surrey Sussex Air Ambulance livery for the X-Rotors AW139. The livery is based on the real helicopter (G-KSSC). The Air Ambulance Kent Surrey Sussex is an organisation providing emergency medical services through the provision of a helicopter air ambulance covering the three English counties of Kent, Surrey and Sussex which are served by the South East Coast Ambulance Service. Repainted in Gimp. By Paul Mort.