Summary

Pale Blue's Water Ion Thruster is a low pressure, low power propulsion unit with a scalable water tank and a redundant flow control system. It features hollow cathodes and electrodes for enhanced lifetime of the overall system. It features both UART and RS422 command interfaces.

The thruster is modularized and it is also possible to enhance the overall system by clustering thruster units and scaling the propellant tank as needed. Two micro discharge ion thrusters driven by Xenon have been demonstrated in 2014 and 2015, and two flight model thrusters are to be delivered in 2021.

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Last updated: 2021-07-29

Water Ion Thruster

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Specs

dry mass
1.6 kg (w/o tank)
thrust range
136 to 306 µN
power
30 to 60 W
specific impulse
500 to 968 s
total impulse
981 to 3323 N s
thrust to power ratio
4.6 to 5.1 µN/W
supply voltage
5 V
12 V
command interface
UART
RS422
operating temperature
4 to 49 C
storage temperature
0 to 68 C

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