Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > Reaction Wheel Assembly (RWA-05)
Key highlights
The RWA05 by Berlin Space Technologies is a reaction wheel assembly for small satellites with integrated fiber optical gyro. The integrated gyro enables precise speed, angular rate, and position control loops as they have been pioneered on Berlin satellites since 1994. The RWA05 comes in two versions: a high-voltage and a low-voltage variant.
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Last updated: 2023-02-15
Technical specs
power consumption (motor)
0.8 A @ max. torque
0.07 A @ 3000 rpm
0.07 A @ 3000 rpm
net torque
14.2 mN m @ 5000 rpm
16.0 mN m @ 500 rpm
16.0 mN m @ 500 rpm
mass
1.70 kg (RW + WDE + Gyro)
1.55 kg (RW + WDE)
1.55 kg (RW + WDE)
length
105 mm
width
106.6 mm
height
109.5 mm
power supply
5 V (electronics)
17 to 32 V (motor)
17 to 32 V (motor)
power consumption
0.5 W @ 5 V
angular speed
500 to 5000 rpm
angular speed control accuracy
±2 rpm
angular momentum storage
0.5 N m s
data interface
RS422
operating temperature
-20 to 40 C
storage temperature
-30 to 50 C
radiation test (Co60)
30 krad
lifetime
5 years LEO
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