The front fuselage of Saab AJSF 37 Viggen 37950 is preserved at the Flyg- och Lottamuseum. Originally built as an AJ 37 and then converted to SF 37 standard and first flown in January 1979 as the first SF 37 Viggen. SF means spaning, foto or photo reconnaissance. It was upgraded to AJSF 37 standard in February 1997. AJSF is Attack, jakt, spaning, foto or attack fighter photo reconnaissance.

The front fuselage of Saab AJSF37 Viggen 37950 is preserved in the excellent Flyg- och Lottamuseum in Optand. It was the first SF37 Viggen built, where SF stands for Spaning-Foto (photo reconnaissance). The radar in the nose of the Viggen was replaced by various cameras and additionally camera pods could be carried under the wings.