WATER CUBE

WaterCube is a water based propulsion system designed for Cubesat and Smallsat. Is cheap, small, reliable and easy to test and integrate.
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, secondary propulsion for Smallsat.

SIMPLE AND MODULAR: off-the-shelf components and 3D printing allow serial production .

GREAT PERFORMANCE: allows Cubesats and Smallsats to perform all the needed orbital maneuvers for a variety of missions.

PERFORMANCE FEATURE:

Thrust = 4 mN

Specific Impulse > 90 s

Power (Peak) = 22 W

Power (Average) = 19 W

Power (Idle) < 1 W

Wet Mass < 1 kg

Dimension 0.6U - up to 1.4U increasing propellant amount

Use cases:

De-orbiting

Collision avoidance

Orbit maintenance

Formation flight

For Smallsats only:
Attitude control and proximity operations

		*	*
Form Factor	3U	6U	12U
WaterCube Propulsion Unit Volume [U]	0.6U (baseline product)	1U (with modular 3D printed tank)	1.4U (with modular 3D printed tank)	2x 1U clustered
Propellant Mass [kg]	0.275	0.650	1.100	1.300
Assumed Spacecraft Wet Mass [kg]	5.5	11.0	18.0	18.0
Total Impulse [Ns]	250	600	1000	1180
Total Delta v [m/s] @ 95s Isp (4 mN thrust; 3 mNs MIB)	43	56	58	69 (8 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
Cost Savings to final operator [Euro]	60k (20% of platform cost)	100k (15% of platform cost)	140k (12% of platform cost)	165k (14% 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

Q4 2025:

First flight model IOD - TRL 8

Q1-Q2 2026:

"Fly" into the market