BDG-26 Variant 1

Function of the BDG-26 angular rate block

The main function of BDG-26 is to provide angular rate feedback for aircraft control and damping systems. The block measures angular velocity within its working range and helps suppress unwanted oscillations in the controlled axis. In automatic control systems, this signal is used to improve aircraft stability, reduce short-period movements and support smoother operation of autopilot or flight-control channels.

BDG-26 in SAU and ABSU systems

BDG-26 blocks are used in Soviet and Russian automatic control systems, including SAU and ABSU-type systems. In aircraft such as Tu-154, the source context describes installation of several independent blocks for separate roll, heading and pitch channels. Each block is mounted according to the aircraft structural axes, so the measured angular velocity corresponds to the assigned control channel. The exact system role depends on the aircraft type and automatic control system documentation.

Internal composition of BDG-26 Variant 1

According to the source context, the BDG-26 block includes a DUSU2 unified angular rate sensor, a pulse transformer block and a gyro motor rotation control block. This internal composition allows the unit to measure angular velocity, form the required electrical output and monitor gyro motor operation. The block works as a dedicated aviation control sensor rather than as a cockpit display or navigation indicator.

Aircraft application of BDG-26

BDG-26 is associated with automatic control and stabilization systems of civil, transport, military and special aircraft. The source context mentions Tu-154, Il-76, An-124 Ruslan, Su-27, MiG-29 and Mi-26 helicopters. Actual applicability must be confirmed by aircraft modification, installed SAU / ABSU system and maintenance documentation. The same designation may appear in different channels or configurations depending on the aircraft system architecture.

Installation and ordering of BDG-26

BDG-26 blocks are installed rigidly on aircraft structural elements, with orientation aligned to the aircraft construction axes. They are normally located in technical compartments, avionics racks or equipment bays, not on the cockpit panel. When ordering BDG-26 Variant 1, the buyer should specify the required variant, control channel, aircraft type, condition, documentation package and test status. Product passport, repair certificate, storage records and bench test confirmation are important for aviation supply.