The The Steam Thruster One from SteamJet Space Systems is a Spacecraft Thruster with Thrust 0.006 N, Thruster Mass 2.2 Kg (2U Water Tank), Specific Impulse 172 sec, Propellant Mass 1.2 Kg (2U Water Tank), Power Consumption 0.12 to 19.9 W. Tags: Electric Propulsion Thruster. More details for The Steam Thruster One can be seen below.