Looks IMO clearly posed!
It is from this paper .A model of KJ-600 used to conduct drop tests to simulate carrier landing. Apologies for the poor image quality, but I couldn't find a better version.
According to this article (only in Mandarin), this photographed KJ-600 has been painted with PLAN colours.Not sure when these photos were taken.
New KJ-500 images. Posted by on Twitter, via @鼎盛大彪 and @捣蛋就捣蛋 from Weibo.
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Hard to imagine that we have advanced from words to images for watermarking.