The Rainbow 4 (CH-4) aerial drone. Experts in the United States say China is rapidly catching up in drone technology. Photo: SCMP

Next-generation Rainbow drone ready for PLA delivery

Rainbow 4 unmanned aerial vehicle ready for use by military after successful missile test

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The Rainbow 4 (CH-4) aerial drone. Experts in the United States say China is rapidly catching up in drone technology. Photo: SCMP
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