Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > 12.0 Nms RWA - RW5 - Reaction Wheel
Key highlights
The Rocket Lab 12.0 Nms RWA - RW5 is a radiation-hardened reaction wheel designed for satellite applications. It has a momentum of +/-12 Nms and a torque of +/-0.2 Nm.
The RW4 requires a supply voltage between 24 V to 34 V. It has the capability to operate in temperatures between -20 to 60° C.
Key features
- Designed for long life and reliability
- Based on lessons learned from more than 250 wheels on-orbit heritage
- Constellation-class manufacturing capabilities for large-volume deliveries
- Standard and more radiation-hardened variants
- Modular assembly designed for volume manufacturing
- Low mass and volume envelope
- CAN-FD or full/half duplex RS-485
- Fully demisable
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Last updated: 2023-04-26
Technical specs
mass
< 5 kg
diameter
< 257 mm
height
< 68 mm
angular momentum storage
12 N m s
torque
0.2 N m
power consumption
<40W @ 12Nms steady state.
voltage
30 to 50 V
operating temperature
-20 to 70 C
survival temperature
-40 to 70 C
radiation tolerance
> 12 krad
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