ZHUHAI, China—An AVIC-owned J-10B testbed demonstrated in a Nov. 6 flying display showed China’s new mastery of extreme aerial maneuverability aided by an experimental thrust vectoring control system.
Over a crowd of thousands attending Airshow China here, the J-10B’s axisymmetric vectoring engine nozzle enabled several aerial stunts associated with the most agile combat fighters.
Thrust vectoring allows a pilot to control an aircraft in an aerodynamic stall condition caused by a low speed and a high angle of attack. By using the vectoring nozzle to rotate the thrust produced by the engine, the pilot can perform tightly controlled maneuvers in a condition that would cause most aircraft to depart controlled flight.
In the most dramatic stunt, the J-10B’s pilot pulled the nose back almost 90 deg., then used thrust-vectoring control to rapidly reverse direction in a maneuver known as a “J-turn.”
The J-10B also performed a familiar air show stunt by Russian fighters. Pulling the nose back beyond 90 deg. at a very low speed, the thrust vectoring system kept the aircraft in firm control.
Such stunts, while popular at air shows, have limited value in modern combat against another fighter. Post-stall maneuvering, however, can help a fighter pilot in other ways, such as by avoiding detection by flying with a forward speed lower than the threshold velocity required for being spotted on an airborne early warning radar.
Thrust vectoring technology has been available to Russian and U.S. pilots since the 1990s, but has entered China’s aerial arsenal only recently. The delivery of the first batch of Sukhoi Su-35S fighters earlier this year introduced thrust vectoring control technology to the People’s Liberation Army’s Air Force fleet. Around the same time, pictures surfaced of AVIC’s J-10B testbed equipped with a thrust vectoring nozzle.