In order to train the new pilots of the Fulcrum for Air Force,Mikoyan OKB developed a combat-capable trainer base on the original Fulcrum A.

Known as the Izdeliye 9.51,the new Two-Seat Mig-29UB conversion trainer took it's first flight on 29th April 1981.To avoid a major redesign and ensure maximum commonality,the fire control radar was deleted in order to contain the newly-designed cockpit and canopy.Both the trainee at the front seat and the instructor at the rear can control the aircraft completely.With the remaining IRST and HMS,the Mig-29UB can still firing the IR-homing AAMs and air-to-ground armaments.The internal cannon were retained.

:The Mig-29UB retained dogfighting and strike capability,and the special emulators allows pilots to train in intercept techniques.Most users of the Single-Seat Mig-29s have imported the Mig-29UB to train their new pilots.