At Phase Four we are constantly pushing the envelope of RF plasma propulsion. We have active R&D in plasma physics of RF thrusters, advanced propellants, and new applications of plasma propulsion in space.
Maxwell is a high performance turn-key plasma propulsion system that leverages miniaturized RF electronics and our electrodeless thruster in a compact form factor.
Phase Four is moving into a new facility located at: 12605 S Van Ness Ave, Hawthorne CA
Read more about us and updates in the news.
Phase Four’s spacecraft engine first to demo AFRL’s game-changing ‘green’ fuel
Former NASA administrator Jim Bridenstine told Breaking Defense that Phase Four has the potential to "disrupt the in-space propulsion market," and its technology "is important for the country."Read More →
Phase Four Unveils Game Changing Engine for LEO Constellations
Leveraging its new Block 2 architecture, Phase Four announces Max-V, a revolutionary plasma propulsion system available in 2023Read More →
Phase Four adopts iodine for next-gen Max-V engine
Propulsion startup Phase Four is expanding its Maxwell plasma propulsion line by offering Max-V, an iodine-fueled engine.Read More →