Sangnam J-9
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| Sangnam JS-9 | |
|---|---|
 Main JS-12 variants (note the conformal fuel tanks on the C model) | |
| General information | |
| Type | fighter, Multirole Fighter |
| Manufacturer | Sangnam Aircraft Design Bureau |
| Status | In service |
| History | |
| Manufactured | 1977-1992 |
| Introduction date | 1 June 1980 |
The Sangnam JS-9 (전투기, 상남 9; Jeontugi, Sangnam 9; Fighter, Sangnam (Bureau) 9) is a single-engine, variable-geometry fighter aircraft produced by the Sangnam Aircraft Design Bureau. Based on the Vanquarian MiG-23, it was a major step in advancing the PLAAF's capabilties, the main fighter of which up until that point was the MiG-21-derived JS-7. The JS-9 remains in service with the DPAAF today, even though it is slowly being replaced by the more advanced Sangnam JS-12. About 50 JS-9s have been upgraded to the multi-role JS-9D variant, whith a total of 70 more being slated for upgraded, which is said to extend the model's service life into the 2030s.