CAPSULE CORPORATION
WE ARE
RE-SHAPING
THE TECHNOLOGY
OF
CUBESAT
PROPULSION
RE-SHAPING
THE TECHNOLOGY
OF
CUBESAT
PROPULSION
WE ARE
RE-SHAPING
THE TECHNOLOGY
OF
CUBESAT
PROPULSION
RE-SHAPING
THE TECHNOLOGY
OF
CUBESAT
PROPULSION
WATER CUBE
WaterCube is a water based-propulsion system designed for Cubesats and Smallsats. It is cheap, small, reliable and easy to test and integrate.
This plug-and-play propulsion unit has incredible features:
This plug-and-play propulsion unit has incredible features:
- UNPRESSURIZED WATER PROPELLANT: green, sustainable and safe choice.
- MINIATURIZED AND LIGHTWEIGHT: primary propulsion for CubeSat > 2U, primary or secondary propulsion for Smallsats.
- SIMPLE AND MODULAR: off-the-shelf components and 3D printing allows serial production, modularity and short delivery time.
- GREAT PERFORMANCE: allows Cubesats and Smallsats to perform all the needed orbital maneuvers for a variety of missions.
PERFORMANCE FEATURES:
Thrust: 4 mN
Specific Impulse > 90 s
Power (Peak): 23 W
Power (Average): 20 W
Power (Idle) < 1 W
Wet Mass: 0.8 - 1.8 kg (depending on configuration)
Dimensions: 0.6U - up to 1.6U (depending on configuration)
Total impulse: 200 - 1000 Ns (depending on configuration)
Use cases:
De-orbiting
Collision avoidance
Orbit maintenance
Formation flight
For Smallsats only:
Attitude control and proximity operations
 |
 * |
 * |
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|---|---|---|---|---|---|
| Form Factor | 3U | 6U | 12U | Smallsat | |
| WaterCube Propulsion Unit Volume [U] | 0.6U (baseline product) |
1U (with modular 3D printed tank) |
1.6U (with modular 3D printed tank) |
2x 1U clustered | 4x 1.6U clustered |
| Propellant Mass [kg] | 0.225 | 0.650 | 1.050 | 1.300 | 4.200 |
| Assumed Spacecraft Wet Mass [kg] | 5.5 | 11.0 | 18.0 | 18.0 | 100.0 |
| Total Impulse [Ns] | 200 | 600 | 1000 | 1180 | 3900 |
| Total Delta v [m/s] @ 95s Isp (4 mN thrust; 3 mNs MIB) |
39 | 56 | 57 | 69 (8 mN thrust) |
42 (16 mN thrust) |
| Added Lifetime (*CAM = Collision Avoidance Maneuvre) |
2 years + 30 CAM |
2.2 years + 30 CAM |
2 years + 30 CAM |
2 years + 30 CAM + faster de-orbiting |
2 years + 30 CAM |
| Cost Savings to final operator [Euro] | 72k (18% of platform cost) |
133k (19% of platform cost) |
174k (17% of platform cost) |
214k (21% of platform cost) |
342k (11% of platform cost) |
| * Courtesy Endurosat | |||||
OUR ROADMAP
DECEMBER 2023:
Prototype tested - TRL 3
APRIL-JULY 2024:
Components tests - TRL 4
OCTOBER 2024:
Engineering model test - TRL 5
End Q4 2025:
First flight model IOD - TRL 8
Q2 2026:
"Fly" into the market
