Sion Airport PC-6, Pilatus PC-7, Pilatus PC-9 and Pilatus PC-21 as well as helicopters it uses Sion intensively with the fighter jets F/A-18 and F-5 Tiger. It is the home base of the militia pilot unit Fliegerstaffel 19 Swans with F-5E. Sion Airport is, at both ends of the runway, equipped with retractable arresting gear devices (used by the F/A-18 and in case of a problem by the F-5). Because of the redimension of the Swiss Air Force it is planned that the Air Force will leave Sion after 2017 and Sion will be used by civil aviation only, acting only as
Sion, Mumbai Sion, Mumbai Sion is a neighbourhood of Mumbai. The Marathi name for Sion is "Sheev" which means boundary or limit. In the 17th century the village formed the boundary between Mumbai and Salsette Island. The British named it marking the end of the city. The name remained even after Mumbai was joined to the Salsette and extended up to Mulund. However now Sion is not the end of the city. One of the local historical places in Sion is a hilltop garden commonly known as Sion Fort or Sheevon Killa in native language Marathi. In 1543, the Portuguese took possession