HARDWARE / PRODUCTUpdated 24 Jul 2026

Solar Array Drive Mechanism. Type 3

Glavkosmos
Solar Array Drive Mechanism. Type 3

An electromechanical solar array drive mechanism designed for continuous rotation of solar array wings, electrical power transmission, and output shaft rotation angle signal generation.

Key figurescomparable across the catalogue

Mass
22.7 kg
Largest dimension
941 mm
Design life
8.1 years
Lead time
12 months
TRL
9

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 solar array wings at the specified rate; electrical power transmission for control and telemetry signals; shaping and generating signals of the output shaft rotation angle.
Year of release
1995
Design life
7 years
Lead time
12 months
Flight qualification of the product
Yes
Brief history of flight qualification
Glonass-M.
Possibility to adapt the product to customer requirements
Yes
Output shaft rotation rate,deg/min
0-8
Angle measurement error, not exceeding
0.42 °
Total current of power current-collecting devices
420 A
Number of power supply circuits, units
12
Overall dimensions
941 × 355 × 460 mm
Number of telemetry circuits, units
96
Operational life defined by hours, not less than
71000
Mass
22.7 kg

About

The Solar Array Drive Mechanism, Type 3, is an electromechanical device specifically engineered for spacecraft applications. Its primary purpose is to precisely rotate solar array wings at a specified rate, ensuring optimal sun exposure for power generation. Beyond mechanical rotation, it facilitates the electrical power transmission for control and telemetry signals, and it is capable of shaping and generating signals related to the output shaft rotation angle. This mechanism was first released in 1995 and boasts a guaranteed service life of 7 years. It has a flight qualification, with a brief history of flight on the Glonass-M satellites. The manufacturer offers the possibility to adapt the product to customer requirements, indicating flexibility in its design and integration. It operates in a continuous rotation regime.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: trade.glavkosmos.com ↗

The rest of the range from Glavkosmos

All 200 products →