The SK 60, or Saab 105 as the plane is called in the civilian version, has been in active service within the Swedish Armed Forces since 1967.
The SK 60 has overhead wing and twin jet engines. Over the years, the engines have become increasingly powerful, and instrumentation and weapon systems have also been upgraded. A number of different versions of the plane have been developed, including a four-seater version for passenger transport, as well as a photo version with an extended nose with space for camera equipment.
The SK 60 will be replaced as a training aircraft by the SK 40.
Source: The Swedish Armed Forces