Propulsion Thruster Drive Mechanism
1-DOF electromechanical thruster pointing drive (±10.5°, 20 N·m, 7.3 kg, 520×390×300 mm) with 15-year life. Flight proven.
Technical specifications
- Purpose
- Rotation, launch hold-down, and thermal control of spacecraft propulsion thruster unit (3 thrusters)
- Year of release
- 2003
- Guaranteed service life, years
- 15
- Overall guaranteed lifetime, years
- 19
- Estimated production/delivery time
- 4 months
- Rotation angles, °
- ±10.5
- Rotation rate, °/min
- 0.08–5
- Pointing error (arcmin), not exceeding
- 5
- Nominal developed torque (N·m), not less than
- 20
- Operating temperature range, °C
- -50 to +50
- Operational life (hours), not less than
- 14,000
- Active lifetime, years
- 15
- Overall dimensions, mm
- 520 × 390 × 300
- Mass, kg
- 7.3
- TRL
- 9 (flight-proven)
About
The Propulsion Thruster Drive Mechanism rotates a unit of three propulsion thrusters around one axis within a specified angle range, holds the thruster unit in the transportation position during launch, and controls operating temperature of propulsion thrusters. A one-degree-of-freedom electromechanical device, it provides ±10.5° rotation at 0.08–5 °/min with 5 arcmin pointing error and 20 N·m nominal torque. Overall dimensions are 520 × 390 × 300 mm, mass 7.3 kg. Released in 2003 with a 15-year guaranteed service life (19-year overall), 14,000+ hour operational life, and 4-month delivery time.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
