Solar Array Drive Mechanism. Type 3
Flight-proven large SADM (22.7 kg, 420 A, 12 power circuits, 71,000-hr life) for GLONASS-M spacecraft.
Technical specifications
- Purpose
- Solar array wing rotation, power transmission, telemetry signal routing, shaft angle measurement
- Year of release
- 1995
- Guaranteed service life, years
- 7
- Estimated production/delivery time
- 12 months
- Flight heritage
- Glonass-M
- Customization
- Can be adapted to customer requirements
- Operating regime
- Continuous rotation
- Output shaft rotation rate, deg/min
- 0–8
- Angle measurement error (°), not exceeding
- 0.42
- Total current of power current-collecting devices, A
- 420
- Number of power supply circuits
- 12
- Number of telemetry circuits
- 96
- Operational life (hours), not less than
- 71,000
- Overall dimensions, mm
- 941 × 355 × 460
- Mass, kg
- 22.7
- TRL
- 9 (flight-proven)
About
The Solar Array Drive Mechanism Type 3 rotates solar array wings, transmits electrical power, and routes control/telemetry signals. An electromechanical SADM with continuous rotation at 0–8 deg/min, it handles 420 A total current across 12 power circuits and 96 telemetry circuits, with 0.42° angle measurement accuracy. Large form factor: 941 × 355 × 460 mm, mass 22.7 kg. Released in 1995, 71,000+ hour operational life, 7-year guaranteed service life, 12-month delivery. Customizable. Flight-qualified on Glonass-M.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
