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
Ion Theodorescu-Sion government ordinance. Theodorescu-Sion died in Bucharest, on March 31, 1939, and was buried in a Bellu cemetery crypt. His last selection of works was presented to the public as part of the Official Salon, which opened the same month in Bucharest. "Gândirea" published his obituary, signed by Crainic, and opening with the words: "Theodorescu-Sion died unexpectedly, in the full summer of his life and of his boundlessly fecund talent." Theodorescu-Sion was probably the most protean Romanian oil painter. Sion's interests in trying out formulas was taken with reserve by some in the public. Writing for the Transylvanian readership of "Luceafărul",