SAU-451-05SMT (UBT) AUTOMATIC FLIGHT CONTROL SYSTEM
This digital automatic flight control system is developed for providing the updated MIG-29-SMT (UBT) Fighter with manual, automatic and flight-director control for all its operating conditions, increased flight safety, and stability and controllability characteristics augmentation; it also performs the following functions:
• automatic and flight-director aircraft control during landing approach down to an altitude of 50m;
• damping regime with stability and control characteristics support;
• pilot all-maneuverable aircraft control via the control stick upon operating dampers with stabilization of roll and pitch angles when the stick is released by roll and pitch;
• recovery of an aircraft to level flight from any spatial attitude;
• stabilization of attitudes and barometric altitude during a whole range of aircraft operation;
• automatic and flight-director withdrawal from dangerous small altitudes via the radio altimeter signal;
• trimming upon manual roll and pitch control;
• carrying out of pre-flight test-checks;
• “Refueling damper” mode.
Application of the VU-222-05SMT (UBT) digital computers as a main part of the AFCS and manufactured on the base of Russian circuitry allows the following functions to be performed in addition to the SAU-451 analog version functions upon a reduction of weight and an increase of operating characteristics:
• automatic and flight-director control using “Route” and “Return” modes;
• increase of stability and controllability at high angles of attack;
• continuous monitoring of rudder servo serviceability, longitudinal stability augmenter channel and ailerons retuning;
• system servicing without using checkout equipment;
• generation of given ny, that is limited in automatic modes depending on suspension type.
Specifications
Weight, kg no more than 45
(including computer) no more than 13
Power consumption:
• DC power, W no more than 80
• AC power, kVA no more than 1.5
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