China's sixth-generation J-36 fighter jet was spotted again today during daylight test flights.

China's sixth-generation J-36 fighter jet was spotted again today during daylight test flights.

It is a massive, tailless, three-engine stealth aircraft (22 meters long, 50+ tons) - up to five prototypes are currently flying with visible design changes between them.

Recent developments include a structural model shown on September 15 and a ~100 kW airborne laser system on display alongside J-36 images at the Beijing show.