Russia's Sukhoi Su-57 stealth fighter made a show at China’s International Aviation and Aerospace Exhibition, where Russian test pilot Sergey Bogdan praised its capabilities, calling it superior to any aircraft,

The long and troubled history of Russia's prized Su-57 fighter jet appeared to take another turn for the worse in recent days when what should have been an opportunity for the Kremlin to flex some military muscle turned into global ridicule and embarrassment.