The breakthrough propulsion system will allow satellites to use Earth's atmosphere as fuel in low Earth orbit.
A new era of space technology is beginning. A new air-electric engine has the potential to revolutionize the operation of satellites, especially in very low Earth orbit, writes Focus.
Currently, satellites use conventional fuel to maintain their orbit and perform maneuvers in space. However, fuel increases the weight of spacecraft, limits mission duration, and raises costs. Over time, satellites lose altitude due to atmospheric drag and must consume fuel to remain in orbit.
The new air-electric engine eliminates the need for traditional fuel. The engine collects and uses particles from Earth's atmosphere as fuel. Specifically, it refers to atmospheric gases: nitrogen and oxygen. This technology will allow satellites to operate sustainably in very low Earth orbit at altitudes of 180 to 250 kilometers, where traces of atmospheric gases are present. The propulsion system captures these particles, ionizes them, and accelerates them to create thrust.
Thus, using such an engine reduces launch mass and creates virtually unlimited thrust as long as atmospheric particles are present.
The new engine has passed key tests and is preparing for a full prototype. This propulsion system is being developed by European companies TransMIT GmbH and IQM with the support of the European Space Agency.
Currently, a prototype is being developed, with tests planned in vacuum facilities capable of reproducing the conditions of very low Earth orbit.
The implementation of air-electric engines could significantly change the satellite industry. With increased satellite lifespans and reduced dependence on fuel, satellite operators will be able to lower costs and enhance the efficiency of spacecraft.
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