BDG-10-1 Series 2

Function of the BDG-10-1 angular-rate block

The main function of BDG-10-1 Series 2 is continuous measurement of angular velocity and transmission of proportional electrical signals to aircraft control systems. When the aircraft rotates around one of its axes, the gyroscopic sensing element reacts to this motion and forms an output signal. The signal amplitude and polarity, or phase depending on the circuit, correspond to the magnitude and direction of angular movement. The automatic control system uses this information to generate damping commands.

BDG-10-1 in automatic control systems

BDG-10-1 Series 2 is used as a primary information sensor in aircraft automatic control systems. The source context links the unit with BSU-3P onboard control systems, the Put-4MPA-2 flight-navigation complex and AP-6E autopilot equipment. In these systems, the block supports stability augmentation and damping of short-period aircraft oscillations. Its signal can be used in roll, pitch and heading channels depending on the aircraft wiring and system configuration.

Construction and operating principle

BDG-10-1 belongs to the family of mechanical damping gyro blocks. Inside the unit, angular-rate sensors detect rotation of the aircraft body. The gyro element produces a mechanical response to angular motion, which is converted into an electrical signal by internal sensing circuits. Depending on the modification and system design, the block may be single-channel or multi-channel. Series 2 refers to a specific factory execution within the BDG-10-1 line, so electrical and mechanical compatibility should be checked before replacement.

Installation of BDG-10-1 Series 2

BDG-10-1 Series 2 is mounted inside aircraft technical compartments or avionics racks, usually in protected areas such as underfloor equipment spaces, cockpit-adjacent technical bays or the center-section equipment area. The unit must be installed on a rigid horizontal frame or bracket with shock isolation. Its measuring axes must be aligned with the aircraft longitudinal, transverse and vertical axes, because incorrect orientation can distort the angular-rate signal used by the automatic control system.

Application and ordering of BDG-10-1 Series 2

The source context indicates use on Soviet and Russian civil and transport aircraft equipped with BSU-3P / AP-6E type automatic control systems, including Yak-40 and some Antonov transport aircraft configurations. Actual applicability depends on the installed autopilot and avionics package. When ordering, the buyer should specify the exact designation, series, aircraft type, measured channel, condition, passport availability, repair documentation, test status and whether wiring or bench-test data are required.