China's much-anticipated J-35A stealth aircraft, centrepiece of this week's Zhuhai air show, has been more than a decade in the making, but experts say little is known about its capabilities.

China debuted the J-35A jet at an airshow that was attended by a senior Russian national security official, underlining Beijing’s ever-closer bonds with Moscow.

The Chinese Air Force has unveiled two new stealth combat aircraft to rival the American F-22 and F-35 advanced fighter jets, including one that can collaborate with drones in combat. The latest Chinese fighter aircraft capable of avoiding detection,