Phase Four and Orbit Fab to work on Maxwell engine refueling

SAN FRANCISCO — Propulsion startup Phase Four has signed a memorandum of understanding with satellite refueling startup Orbit Fab aimed at preparing future Phase Four Maxwell engines for on-orbit refueling.

“As we build and deliver an increasing number of Maxwell engines to customers, we want to be forward-looking for mission lifetime extension services such as in-orbit refueling,” said Phase Four CEO Beau Jarvis said in a statement. Working with Orbit Fab “is an obvious step” for Phase Four to ensure “future customers have the option to refuel their spacecraft and extend mission lifetime,” Jarvis added.

Under the agreement announced Jan. 24, the companies will work together to evaluate the refueling potential of traditional electric propulsion propellants…

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