The Shenyang J-11 is a Chinese license-produced and heavily upgraded air-superiority fighter family derived from the Sukhoi Su-27SK and built by Shenyang Aircraft Corporation. The line entered PLA service in the late 1990s and later branched into J-11A, J-11B, J-11BS, J-11BG, J-11BH, J-11BSH, and J-11D variants with more domestic avionics and weapons options.
The J-11 line split into several domestic Chinese branches after the original license-built Su-27SK baseline.
| Version | Distinguishing feature | Notes |
|---|---|---|
| J-11 | License-built baseline | Original Chinese production of the Su-27SK airframe family. |
| J-11A | First domestic improvement | Designed to replace the license-built Su-27SK with a Chinese-upgraded standard. |
| J-11B | Domestic avionics and weapons | Introduced Chinese avionics and weapons with a broader multirole fit. |
| J-11BS | Two-seat trainer | Trainer derivative of the J-11B with a second cockpit for conversion and instruction. |
| J-11BH / J-11BSH | Naval aviation variants | Carrier-aviation and maritime service branches of the family. |
| J-11BG | Modernized J-11B | Updated from 2017 with further domestic improvements. |
| J-11D | Prototype modernization | Initial prototype with AESA radar, IRST, composite pylons, and an engine upgrade. |
PLAAF and PLANAF operators field the J-11 family as a license-produced Su-27SK derivative.
