Vector Awarded Patent for Enhanced Liquid Oxygen-Propylene Rocket Engine

Flight test of P-19H engineering model of the Vector-R launch vehicle from Friends of Amateur Rocketry site in California. (Credit: Vector Space Systems)

Microsatellite launch company receives patent for technology it pioneered, enabling higher performance at reduced cost and complexity

TUCSON, Ariz., Sept. 25, 2018 (Vector PR) — Vector¬†a microsatellite launch company comprised of New Space and enterprise software industry veterans from SpaceX, Virgin Galactic,¬†McDonnell Douglas, Boeing, Sea Launch and VMware, today announced that the company received a U.S. patent for its enhanced liquid oxygen-propylene rocket engine. Vector is the first and only launch provider to utilize propylene fuel and liquid oxygen (LOX) in an operational launch system. This engine patent validates the innovative nature of Vector’s approach and further protects the company’s fundamental technology as it prepares to deliver customer payloads to orbit.

Vector’s decision to pursue liquid oxygen and propylene as an alternative propellant technology is a strategic one. The unique properties of propylene as rocket fuel, including its density when chilled to near-cryogenic temperatures and energetic capabilities compared to that of other hydrocarbon fuels like RP-1 or Methane, enables Vector to deliver higher engine performance with smaller fuel tanks and avoid turbo-pumps traditionally used for other hydrocarbon fuels. By utilizing oxygen and propylene as propellants and propriety engine technology, Vector is effectively reducing the complexity and cost of its rockets, which are smaller, more reliable and unique to the launch vehicle market.

“Vector is the only launch company committed to propylene as a propellant and the first to use it in an operational vehicle, so this patent is not just an important validation but also serves as intellectual property protection,” said John Garvey, President of Launch Services, Vector. “We’ve been incrementally testing this critical technology for several years in a series of flight test projects and are happy to see the patent awarded. This signals another important milestone for Vector as we work towards orbital launch capability.”

Development of Vector’s enhanced liquid oxygen-propylene rocket engine first began at Garvey Spacecraft Corporation, with early research sponsored by NASA and the U.S. Air Force. Vector’s acquisition of Garvey Spacecraft in 2016, and the subsequent development of the Vector-R rocket, is a continuation of that technological lineage.

Poised to reshape the multi-billion-dollar launch market by dramatically increasing access and speed to orbit, Vector has borrowed best practices from the automotive industry to revolutionize the rocket production process. In just the last two and a half years Vector has built its Vector-R launch vehicle, and opened production facilities in Tucson to immediately ramp up rocket manufacturing and fly satellites into orbit.

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About Vector

Founded by the original founding team of SpaceX, Vector is a disruptive company that connects space startups and innovators with dedicated, affordable and reliable launch services, enabling platforms and vehicles to access space efficiently and in a more optimized way than ever before possible. For more information, visit