Are you sure? This is from official PLA website Chinamil.com:-
The guided-missile destroyer Chengdu (Hull 120) attached to a naval vessel training center under the PLA Northern Theater Command fires its close-in weapons system against mock aerial targets during a 3-day maritime training exercise from November 4 to 6, 2020. (eng.chinamil.com.cn/Photo by Zou Xiangmin)
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This is probably 120 Chengdu, unmarked yet as she leaves Dalian for trials. The CIWS gun on her is a Type 1130. From this side, the 1130 has more distance from the drum to the back of the CIWS than the 730, and it has a more hulkish, squarish look. Note the clean arrays without the probes underneath, signifying a new variant of Type 346A radar with a different and improved calibration and diagnostics method.
119 Guiyang is the first 052D commissioned that was from Dalian. This ship has the older style of array with the probes and Type 730, which makes her a Batch 1 ship.
120 Chengdu is the second 052D from Dalian. This is important to know because 119 and 120 are the exceptions ---- because pretty much every 052D from Dalian after these two ships are the lengthened version. Only 119 and 120 are the short ones. 120 is a Batch 2 ship, and we have to consider the lengthened ships as Batch 3.
This is 155 Nanjing. She is the only ship that has the newer array but also has the Type 730 CIWS. 730 looks more like a trapezoid from the front and from the side. The ESM units near the Type 366 are the old style cylinder ones, the newer batch is rounded capped at the top like R2D2.
Going to recheck pictures, if 120 Chengdu does indeed have Type 730, she would be the only other ship with the newer array but still using Type 730 and I will update my recognition database.
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