Safe High Thrust
CU Aerospace has tested a proof-of-principle Monopropellant Propulsion Unit for CubeSats (MPUC). Complete catalyzed combustion was demonstrated with H2O2-based propellant mixtures denoted as CMP-X. This monopropellant has zero toxicity and no special measures are required for its long-term storage. CMP-X was subjected to and passed UN Series 1, 3, and 6 and demonstrated no detonation or mass explosion and is recommended for exclusion from the explosives Class list. Long term stability testing is underway and to date exhibits good stability. CMP-X is designed not for highest performance Isp, but as a monopropellant option for customers who can accept a modest 20% performance penalty (relative to AF-315E and LMP-103S) for the advantages of air transportability, considerably fewer range safety concerns, lower flame temperature resulting in considerably less thermal soakback into the spacecraft, and longer continuous thrust burns.