Propulsion Thruster Drive Mechanism
Glavkosmos
A one-degree-of-freedom electromechanical device that rotates a three-thruster propulsion unit around a single axis, holds it in transport position during launch, and regulates its temperature.
Key figurescomparable across the catalogue
- Mass
- 7.3 kg
- Largest dimension
- 520 mm
- Design life
- 19 years
- Lead time
- 4 months
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
- Rotation of the unit consisting of three propulsion thrusters around one axis within the specified angle range, holding the thruster unit in the transportation position during the launch phase and operating temperature control of propulsion thrusters.
- Year of release
- 2003
- Design life
- 15 years
- Lead time
- 4 months
- Rotation angles of the engine installation surfaces
- ±10.5 °
- Rotation rate of the engine installation surfaces, °/min
- 0.08 – 5
- Pointing error, arcmin, not exceeding
- 5
- Nominal developed torque, n·m, not less than
- 20 N·m
- Operating temperature range
- -50 to +50 °C
- Operational life defined by hours, not less than
- 14000
- Active lifetime
- 15 years
- Overall guaranteed lifetime
- 19 years
- Overall dimensions
- 520 x 390 x 300 mm
- Mass
- 7.3 kg
About
The Propulsion Thruster Drive Mechanism is a one-degree-of-freedom electromechanical device designed to rotate a unit consisting of three propulsion thrusters around a single axis within a specified angle range. It holds the thruster unit securely in the transportation (stowed) position during the launch phase and performs operating temperature control of the propulsion thrusters. The mechanism provides precise pointing of the thruster installation surfaces, rotating them across a range of ±10.5° at a controllable rotation rate of 0.08–5 °/min, with a pointing error not exceeding 5 arcmin. It develops a nominal torque of not less than 20 N·m. The unit is rated for an operating temperature range of -50°C to +50°C and an operational life of not less than 14,000 hours, with an active lifetime of 15 years and an overall guaranteed lifetime of 19 years. It has overall dimensions of 520 x 390 x 300 mm and a mass of 7.3 kg. First released in 2003, the product has a guaranteed service life of 15 years and an estimated production/delivery time of 4 months.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.