The Agderfly AS flight school in Norway utilized which type of twin-turboprop STOL utility aircraft between 1989 and 1992?
Agderfly:  From 1989 to 1992 the company was split into three, with one part responsible for scheduled services. Dornier Do 228: The Dornier Do 228 is a twin-turboprop STOL utility aircraft, manufactured by Dornier GmbH (later DASA Dornier, Fairchild-Dornier) from 1981 until 1998.
i don't know