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 had nothing in common with the "mulligan" traditionalism of Octav Băncilă and Kimon Loghi: "if Mr. Loghi is a painter, then Teodorescu-Sion must surely be something else entirely! One should bear in mind that Mr. Teodorescu-Sion is still developing, whereas 'Master' Loghi has reached his summit. The summit of mediocrity." Contrarily, Nichifor Crainic, who was a Grigorescu aficionado, posthumously described Sion as Grigorescu's one equal; however, he noted, Sion bowed to commissions, and as such never produced an actual masterpiece. Vianu's friend and "Gândirea" contributor Lucian Blaga, a poet-philosopher on the search for Romanian specificity, applauded Theodorescu-Sion's paintings of "super-shepherds