It is a two-seater trainer model in the MiG-23 fighter series developed by the Migaoyan Design Bureau of the Soviet Union, also known as the MiG-23UM. The first flight was successful in May 1969. It was modified from a MiG-23S and then from a MiG-23M. Designed to train pilots to master the operation of the MiG-23 series fighter, it retains most of the flight characteristics of the MiG-23, but has a special coach layout design for the rear seat. He played an important role in the air forces of the Soviet Union and its allies, not only for training, but also for combat missions.

It is a Soviet/Russian second-generation supersonic jet fighter. The MiG-23 fighter jet adopts a single seat variable sweep wing aerodynamic layout and is equipped with a turbojet engine. Its outstanding performance is high flight speed, reaching 2.35 times the speed of sound at high altitude and 1350 kilometers per hour at low altitude. It also has good horizontal acceleration, which is conducive to low altitude breakthrough, high-speed interception, and detachment after attack. MiG-23UB, a two seater trainer type MiG-23, also known as MiG-23UM. The internal code 23-511 made its maiden flight in May 1969. The first aircraft was modified from a MiG-23S model, and later from a MiG-23M model.