Until the launch of Russia’s Su-75 Checkmate fighter jet at the end of July, China’s J-10 was the only single-engine fighter in production, considered a potential competitor of the West.
Most of the fighters aircraft that the Soviet Union developed from the 1970s onwards did not use a single-engine design, but were used a dual-engine concept; the reason single-engine fighter designs were not supported by the Soviet Air Force leadership because the Soviet union lost so many single-engine aircraft compare to the dual engine. The MiG-23 was the last single-engine fighter of the Soviet fighter design bureaus.
The J-10 was developed by China in the late 1980s and entered service in 2006 as a fourth-generation light fighter; intended to replace the light fighters J-7 (clone of the MiG-21) and serve primarily for domestic air defense. The J-10 fighter has been upgraded to the J-10C version, which is considered a 4+ generation fighter version and has been in service since April 2018; The outstanding advantage of the J-10C is that it is equipped with an active electronically scanned array radar (AESA), which can use long-range attack weapons such as PL-15 air-to-air missiles and thrust vector engines for high maneuverability.
As for Russia’s newly developed Su-75 Checkmate fighter, it is planned to test flight by the end of 2023 and start production in 2025. The Su-75 has the same weight and integrates many similar technologies as J-10C; both are comparable in many respects, even though the Checkmate is a fifth generation design. So which type of aircraft would be most detrimental to the geopolitical interests of the West?.