FS98 CFS Royal Norwegian Air Force F-5B Freedom Fighter. FS98 CFS Royal Norwegian Air Force F-5B Freedom Fighter. The Northrop F-5 is an American supersonic lead in fighter jet which comes with excellent handling, reliability, visibility and economy. It entered service in 1963 and it remains in service with many air forces throughout the world. Original model created by Paul Hartl. Upgraded with full moving parts and many other improvements created by Stephan Scholz, textures painted created by Udo Entenmann, adjusted flight dynamics created by Andr Lederer.
