A fighter developed by a country. Development began in 1979, with successful test flights in 1986 and service in 1991. The aircraft was originally designed to replace the F-233A fighter, which has been in service for more than 30 years and has lagged behind in comprehensive performance, and was named the F-233B fighter. It is a single-engine, single-seat, high-mobility, multifunctional fighter designed by a country for its naval aviation. The aircraft can perform air-to-air, air-to-ground, and air-to-sea attack missions. It can also be used as a naval carrier-based aircraft and can even throw nuclear bombs. The maximum attack radius is 1100 km. This aircraft has attack aircraft, advanced trainer aircraft, fighter bomber and other modifications.