China appears to have rushed its J-20 stealth fighter into service with an 'embarrassing' flaw

Chinese state media announced on Friday that the Chengdu J-20 stealth jet had officially entered into service as a combat-ready platform — but inside sources say it's a long way from fighting fit and has an embarrassing flaw. Citing military sources with knowledge of the J-20's development, the South China Morning Post reported that the jets that entered service didn't feature the engines China custom-built for the platform but used older ones instead.

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