Hypersonic Vehicle Testing
Green Launch has launched scramjets at velocities up to Mach 9, setting a record for high Mach number engine operation in a free-flying scramjet at Mach 8, surpassing the previous record of Mach 5.5.
Discover how Green Launch's proprietary light gas gun pressure valve technology achieves velocities up to Mach 9, enabling low-cost, zero-carbon payload delivery to orbit. From hypersonic vehicle testing to satellite launches, our precision-engineered hydrogen propulsion system is redefining what's possible in sustainable space access—at a fraction of traditional rocket launch costs.
From hypersonic testing to orbital payload delivery, explore the full range of capabilities powered by our light gas propulsion system.
Green Launch has launched scramjets at velocities up to Mach 9, setting a record for high Mach number engine operation in a free-flying scramjet at Mach 8, surpassing the previous record of Mach 5.5.
Using a 54-foot launch tube, Green Launch accelerates payloads beyond Mach 3 into the stratosphere, laying the groundwork for cost-effective satellite and supply delivery to Low Earth Orbit.
Green Launch's vehicles provide scientists with rare access to the mesosphere and ionosphere, enabling critical R&D in communications, navigation, and climate science for organizations like the National Science Foundation.
Conducted at Yuma Proving Ground, Green Launch has completed over 16 successful horizontal shots testing varying gas charge pressures, vehicle weights, and velocities—achieving speeds up to 2 km/s.
Green Launch's hydrogen cannon delivers satellites and supplies to orbit at $100/lb with zero carbon emissions, targeting launch windows every 60–90 minutes for next-day delivery to space.
Green Launch has demonstrated over 91% propellant capture, dramatically reducing muzzle flash and acoustic signature while maximizing the efficiency and sustainability of every light-gas launch.
Hydrogen and oxygen gas are precisely pressurized within the system's manifold. Green Launch's precision gas injection scheme carefully controls charge pressures to prevent errant detonation inside the combustion chamber before launch.
Real results from real tests—discover how Green Launch is pushing the boundaries of propulsion science.
Green Launch combines pioneering physics expertise with proven field testing to deliver space access solutions no other technology can match.
Holds the world record for highest Mach number operation in a free-flying scramjet, verified at Mach 8 through rigorous field testing.
Hydrogen and oxygen propellant produces only water vapor as a byproduct, making every launch environmentally responsible and sustainably scalable.
Over 16 successful test shots conducted at Yuma Proving Ground, Arizona, validating real-world performance across varying launch parameters and conditions.
Delivering payloads to orbit at just $100/lb, Green Launch offers a dramatically lower-cost alternative to conventional chemical rocket launch systems.
World-class physicists and aerospace experts driving the future of space access.
Chief Technical Officer
Dr. John W. Hunter is a physicist with decades of expertise in high-velocity propulsion systems. He led the legendary SHARP (Super High Altitude Research Project) at Lawrence Livermore National Laboratory, one of the world's most advanced light gas gun programs. As CTO of Green Launch, Dr. Hunter brings unparalleled technical depth to the development of the company's pressure valve and combustion systems. His work has directly enabled Green Launch to achieve Mach 9 projectile velocities and set the world record for the highest Mach number operation in a free-flying scramjet at Mach 8. Dr. Hunter's vision of sustainable, hydrogen-powered space access is the foundation upon which Green Launch's entire technology platform is built.
Strategic Outreach
Eric Robinson is a systems scientist and entrepreneur with deep expertise in fluid delivery systems for aerospace applications. At Green Launch, Eric serves as the bridge between the company's cutting-edge propulsion technology and its commercial and government customers. His background in aerospace fluid systems directly informs the design and optimization of Green Launch's gas manifold and propellant capture systems—components critical to the reliability and repeatability of every launch. Eric's entrepreneurial instincts have helped Green Launch forge partnerships with organizations including the National Science Foundation and defense research stakeholders, expanding the company's mission beyond testing into practical, revenue-generating launch services.
Chairman of the Board
Don Whitney brings a uniquely powerful combination of military aviation experience and environmental consulting expertise to his role as Chairman of the Board at Green Launch. As a former Air Force pilot, Don understands the operational demands and safety standards required of aerospace systems operating at extreme velocities. His environmental consulting background aligns perfectly with Green Launch's core mission of zero-carbon space access—ensuring that the company's hydrogen-oxygen propulsion approach meets the highest sustainability standards. Don provides strategic governance and leadership that keeps Green Launch's development program aligned with both commercial viability and its foundational commitment to environmentally responsible launch technology.
Green Launch's light gas gun has achieved projectile velocities of 2.97 km/sec, equivalent to Mach 9. This was accomplished using a single-stage light-gas combustion system. In vertical launch testing, the 54-foot launch tube accelerated payloads to velocities exceeding Mach 3, and scramjet tests recorded free-flying operation at Mach 8—a world record.
Talk to our propulsion experts for a detailed technical consultation.
Verified world record for highest Mach number in a free-flying scramjet
Certified test partner of the U.S. Army's Yuma Proving Ground facility
National Science Foundation–recognized provider for atmospheric sampling missions
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For immediate assistance, feel free to give us a direct call at 619-933-6678. You can also send us a quick email at jwhunter2004@yahoo.com
For immediate assistance, feel free to give us a direct call at 619-933-6678. You can also send us a quick email at jwhunter2004@yahoo.com