The Saab 105OE was an improved version of the Saab 105XT export demonstrator prototype designed for the Austrian Air Force, which itself was an improved version of the Sk 60B with General Electric J85 turbojets instead of the Turbomeca Aubisque used in the Sk 60. The first Austrian Saab 105OE was delivered in July 1970 where they replaced the Saab 29 Tunnan and de Havilland Vampire. Austria received 40 aircraft in total, and they were finally retired after 50 years of service on 31st December 2020.

Introduced in Update "Hot Tracks", the Saab 105OE is a variant of the Saab 105G found in the Swedish tech tree, though representing its service with the Austrian Air Force. The main difference between the two aircraft however is the modified wing found on the 105G, as well as a slightly more powerful variant of the GE J85 engines. Unlike the Saab 105G, the Austrian version also does not have access to any bombs, this is offset by the ability to mount Rb05A missiles. This ability is missing on the Saab 105G. In terms of flying characteristics, the plane is quite manoeuvrable, although not very fast with poor acceleration due to its turbofan engines.