Conservation of Angular Momentum (CAM) Drive
Propellantless propulsion technology that generates thrust by rotating working fluid inside a toroidal cavity, rather than expelling propellant. Patent #10,604,255, "Lifting System Machine with Methods for Circulating Working Fluid." Patent utility application filed for NSF Phase I, "Methods of Bi-directional Angular Momentum Couple Control with Rotating Working Fluid," USPTO Application #19/361,094 (pending).

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Propellant-Free Spacecraft: The Future of Debris Removal and Orbital Mobility
View All Videos →Think of a figure skater spinning. When they pull their arms in, they spin faster. The CAM Drive uses this same physics principle—conservation of angular momentum—to generate directional thrust.
The Physics:
By rotating working fluid gas inside a toroidal cavity and changing its angular momentum and rotational energy, the system generates thrust while preserving total angular momentum. The process occurs in an ambient pressure enclosure rather than vacuum.

Zero propellant consumption. Unlimited operational lifetime without refueling.
Target launch cost. 10x better than SpaceX. 182x better than Space Shuttle.
3-4x faster than traditional 6-9 month missions. Reduced crew risk and mission costs.
Orbital debris ready for capture and cleanup across all Earth operational orbits.
Conservation of Angular Momentum (CAM) Drive using rotating working fluid in toroidal cavity. Patent #10,604,255 granted; USPTO Application #19/361,094 (pending).
Solar electric propulsion (SEP) powers the CAM Drive system
CAM Drive enables significantly faster interplanetary transit times
CAM Drive can be retrofitted as an emergency propulsion system for existing spacecraft. When conventional propellant systems fail, CAM Drive provides unlimited backup thrust capability for station-keeping, debris avoidance, and safe deorbiting.
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