Adjustment and Braking Engine
Glavkosmos
The Adjustment and Braking Engine is a four-chamber propulsion system designed for unmanned spacecraft reactive control, orbit control, and braking maneuvers, utilizing UDMH/NTO propellants.
Key figurescomparable across the catalogue
- Mass
- 8 kg
- Thrust
- 464 N
- Specific impulse
- 291.13 s
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Purpose
- Unmanned Spacecraft reactive control system
- Year of release
- 2010
- Flight qualification of the product
- Letter "O", flight use
- Possibility to adapt the product to customer requirements
- Yes
- Propellants, fuel/oxidizer
- UDMH/NTO
- Total nominal thrust
- 464.0 N
- One thruster nominal thrust
- 116.0 N
- Nominal specific impulse of thruster, steady state
- 2,855 m/s
- Nominal inlet pressure
- 1.47 MPa
- Inlet operating pressure
- 1.37…1.57 MPa
- Total firing time, up to
- 2,000 s
- Cycle life, number of starts-up, up to
- 5,000
- Nozzle expansion ratio
- 53
- Operating voltage
- 27 V
- Mass, not over
- 8.0 kg
About
The Adjustment and Braking Engine is a reactive control system for unmanned spacecraft, released in 2010 with flight qualification. Its primary purpose is propulsive burn formation for center of mass velocity variation during spacecraft orbit control and braking. The engine is based on four 11D428A-24 thrusters, which are rigidly bracket-mounted and include an integrated propellant supply system. It uses UDMH/NTO propellants and offers adaptability to customer requirements. The system has a total nominal thrust of 464.0 N, with each thruster providing 116.0 N. It boasts a nominal specific impulse of 2,855 m/s in steady state, a total firing time of up to 2,000 seconds, and a cycle life of up to 5,000 starts. The engine operates with an inlet pressure range of 1.37 to 1.57 MPa and an operating voltage of 27 V, with a mass not exceeding 8.0 kg.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.