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 Record Bostick was charged with attacking a slave named Joseph with a 'sharp stick'. The charges were eventually dropped. Bostick spent his later years at his home in San Saba, Texas. He was a member of the Texas Veteran's Association. At the age of 80, he dictated his memoirs of the Texas Revolution, which were published in 1901 in the Southwestern Historical Quarterly. Sion Bostick died of cancer in San Saba on 15 October 1902. In 1973, a Historical Marker was erected in honor of Sion Bostick in San Saba, Texas near his grave site. The text of the marker reads: Sion