i see no MiG-23UB in the site so I'll be the first
I guess

The MiG-23UB is a two-seat training version of the Soviet Union's MiG-23 fighter aircraft. It was developed to provide training for pilots transitioning to the MiG-23 fighter, as well as for advanced training in combat tactics. The "UB" designation stands for "Uchebno-Boyevoy," which translates to "Training-Combat" in English.

The MiG-23UB retains many of the same features and capabilities as the single-seat MiG-23, including its variable-sweep wing design and powerful Tumansky R-29 engine. However, it has a slightly different cockpit layout to accommodate the second seat for the instructor or trainee pilot.
The aircraft's avionics and weapons systems are also adapted for training purposes, with simplified controls and instrumentation to aid in pilot training. The MiG-23UB is equipped with a variety of training equipment, including dual flight controls, a radar scope for the instructor, and simulated weapons systems.

Overall, the MiG-23UB is a versatile training aircraft that provides pilots with the necessary skills and experience to operate the MiG-23 fighter effectively. Its two-seat configuration allows for effective training and evaluation of pilots, making it an important part of the MiG-23 family of aircraft.
- Sincerely, ChatGPT
Too lazy again...
Controls are normal as usual, except AG1 for drop the tanks, AG2 to activate the wheel turn for taxi, VTOL up to swept the wing, VTOL down for flaps

I guess that's all