Summary

The Steam Thruster One has been designed to offer a safe, high-performance, electrothermal propulsion solution that is specifically designed for CubeSats and small satellites.

The system features a tailored design and manufacturing approach that allows for customization, to meet a wide range of different mission requirements. The specifications are given for a representative 2U water tank. The actual values of the parameters is mission dependent.

The Steam Thruster One uses low-pressure water as a propellant. This results in a safe, non-toxic, and easy-to-handle propulsion solution that can be efficiently integrated into any satellite.

The Steam Thruster One can operate at 10 mN of thrust if 40W are provided; higher thrust is available on request. The technology also causes no RF interference.

The system can be used for a variety of mission applications including constellation management, de-orbiting, collision avoidance, and a range of other manoeuvres. It is also space-qualified according to ESA ECSS-E-ST-10-03C and NASA GSFC-STD-7000A.

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Last updated: 2021-07-30

Steam Thruster One

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Specs

wet mass
2200 g (for a 2U water tank)
propellant mass
1200 g (for a 2U water tank)
width
193 mm (for a 2U water tank)
length
95 mm (for a 2U water tank)
height
95 mm (for a 2U water tank)
voltage
9 to 14 V DC
power consumption
0.12 W (idle)
< 19.9 W (thrusting)
propellant type
water
nominal thrust1
6 mN
specific impulse
172 s
total impulse
1000 N s (per 1U water tank)
2000 N s (for a 2U water tank)
minimum impulse bit
10 mN s
data interface
RS422
TTL UART

1. higher thrust is achievable using more than 20 W

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