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PRECISE focuses on the research and development of a MEMS-based monopropellant micro Chemical Propulsion System (µCPS) for highly accurate attitude control of satellites.The availability of µCPS forms the basis for defining new mission concepts such as formation flying, advanced robotic missions and rendezvous maneuvers. These concepts require propulsion systems for precise attitude and orbit control maneuverability. Basic research will be conducted aiming at improving crucial MEMS technologies required for the propulsion system. Research and development will also focus on the efficiency and reliability of critical system components. System analysis tools will be enhanced to complement the development stages. In addition, application-oriented aspects will be addressed by two endusers who are planning a formation flying mission for which the propulsion system is crucial. Finally, the μCPS will be tested in a simulated space vacuum environment. These experiments will deliver data for the validation of the numerical models. Nomenclatureρ = density I sp = specific impulse µCPS = Micro Chemical Propulsion Systems CFD = Computational Fluid Dynamics

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