BDG-10-1 Series 2

BDG-10-1 Series 2 damping gyroscope block

BDG-10-1 Series 2 is an aircraft damping gyroscope block used in onboard automatic control and stabilization systems. The unit measures angular velocities of an aircraft relative to its main axes and converts these movements into electrical signals for automatic flight-control equipment. These signals are used to damp oscillations in roll, pitch and heading / yaw channels, improving aircraft stability and controllability during flight.

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.

Product Type: Damping gyroscope block / aircraft angular-rate sensor block
Designation: BDG-10-1 Series 2
Alternative Designations: BDG-10-1 ser.2, BDG 10-1 Series 2, БДГ-10-1 серия 2, БДГ-10-1 сер.2
Designation Meaning: Damping Gyroscope Block / Блок демпфирующих гироскопов
Function: Measurement of aircraft angular velocities and output of proportional electrical signals
Measured Axes: Roll, pitch and heading / yaw depending on system configuration
Signal Role: Angular-rate feedback for damping and automatic control channels
Application / Where Used: Automatic flight-control systems, autopilots, stability augmentation and damping systems
Associated Systems: BSU-3P, Put-4MPA-2, AP-6E according to source context
Compatible Aircraft / Equipment: Yak-40 and some Antonov aircraft configurations depending on documentation
Operating Principle: Mechanical gyro response converted into electrical angular-rate signal
Output Signal: DC or AC electrical signal proportional to angular velocity depending on circuit configuration
AC Power Supply: Three-phase 36 V AC
Power Supply Frequency: 400 Hz
DC Power Supply: 27 V DC
Operating Mode: Continuous operation during flight
Angular Rate Measurement Range: Usually up to ±60°/s or ±90°/s depending on channel and modification, according to source context
Measurement Error Reference: Several percent of the working angular-rate range, according to source context
Readiness Time: Up to 3–5 minutes after power-on, according to source context
Mounting: Rigid horizontal frame or shock-mounted bracket aligned with aircraft construction axes
Installation Area: Technical avionics compartment, equipment rack, underfloor space or center-section area depending on aircraft type
Related Equipment: AP-6E autopilot, damping channels, aircraft control actuators and bench-test equipment such as UPG-56 according to source context
Series / Modification: Series 2
Condition: New / As-Stored / Overhauled / Serviceable, depending on availability
Technical Documentation: Product passport, repair certificate, test report, storage records, connector pinout and automatic control system documentation if available

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Warranty
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