Francia quiere el 80% de la carga de trabajo del NGF

https://blog.sandglasspatrol.com/francia-quiere-el-80-de-la-carga-de-trabajo-del-ngf/

J-20S Now Operational: China Just Brought the World’s First Twin Seat Fifth Generation Fighter Into Service

https://militarywatchmagazine.com/article/j20s-operational-china-world-first-twin-seat-fifth-gen