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Rocket Propulsion Systems

Rocket Propulsion Systems

Rocket Propulsion Systems: Innovating hypersonic space travel with modern, cost-effective tech.

Operating headquarters
Kent, WA, US🇺🇸
Founded
2019
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Rocket Propulsion Systems - Library

rocketpropulsion.systems·Crawled Oct 7, 2026·

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Product

6 pages
  1. Centurion Rocket Engine Prototype Complete/centurion-rocket-engine-prototype

    RPS has completed its first "Centurion" rocket engine prototype for small satellite space launch vehicles. The engine weighs 33 pounds and costs $100,000 to produce. It is designed to operate on clean burning liquid oxygen and liquid methane propellants and produce 3,300 pounds of thrust. The engine features a fuel-rich staged combustion cycle giving it

  2. NASA SBIR Phase I – Hydrogen Afterburner Development/hydrogen-afterburner-phase-i

    Rocket Propulsion Systems is excited to have been awarded a NASA SBIR Phase I contract for the development of "Injector for LOX-GH Stable Combustion at Low Pressure and High Velocity" in "Advanced Propulsion Systems Ground Test Technology" research and development topic area. Primary uses of this technology are: combustion of hot hydrogen-rich gas exhausted from

  3. NASA SBIR Phase II – Hydrogen Afterburner Development/hydrogen-afterburner-phase-ii

    We are honored to have been selected by NASA for Phase II contract in support of NASA's next generation nuclear rocket propulsion development and future inter-planetary transportation. This work continues the Phase I effort started in 2019. Rocket Propulsion Systems team is excited and looking forward to continued collaboration with NASA over the next two

  4. NSF SBIR Phase I – Centurion Rocket Engine Development/centurion-engine-phase-i

    We are honored to have been awarded an SBIR Phase I by the National Science Foundation to boost the development of the first American high-performance, reliable, high thrust-to-weight and low maintenance liquid rocket engine of 1.5-metric-ton thrust for small 50-180 kg satellite launch vehicle to 700 km Low Earth Orbit, on low-cost liquid oxygen /

Press

6 pages
  1. NSF TECP – Reusable Suborbital Rocket Development/rps-starts-suborbital-rocket-development

    RPS is delighted to have been awarded a $200K Technology Enhancement for Commercial Partnerships (TECP) grant from NSF for development of a reusable suborbital launch vehicle powered by the Centurion rocket engine. The rocket pursues dual-use goals as a commercial platform for low-gravity research and experimentation, and/or as a surveillance and reconnaissance mobile platform in

  2. NSIN Vector – 2023 Cohort/nsin-vector-2023

    We are excited to announce that RPS has been selected for the 2023 National Security Innovation Network Vector accelerator cohort. Over the next 10 weeks, our team will be working to develop dual-use applications of our low-cost "Centurion" rocket engine technology. We are excited to explore how our company might help address key national security priorities

  3. Rocket Propulsion Systems Awarded US Space Force $3M Contract for Orbital Transfer Vehicle/rocket-propulsion-systems-awarded-us-space-force-3m-contract-for-orbital-transfer-vehicle

    Transport solutions to address the Space Force's need to move critical payloads between orbits KENT, WA, UNITED STATES, July 17, 2025 -- Rocket Propulsion Systems (RPS) LLC announces it has been selected by SpaceWERX for a Direct-to-Phase II SBIR contract in the amount of $3M focused on development of its Orbital Transfer Vehicle (OTV) to

  4. RPS Completes Hot-Fire of its Thrust Chamber Assembly/rps-completes-thrustchamber-testing

    RPS has completed hot-fire testing of its Thrust Chamber Assembly (TCA), which operates on liquid oxygen (LOX) and gaseous methane or compressed natural gas (CNG). The TCA is the primary thrust component of our Centurion rocket engine. The test campaign included (102) cold flow and hot-fire tests to validate combustion performance, stability, and reusability across

About

4 pages
  1. About Us/about-us

    About Us We founded Rocket Propulsion Systems (RPS) in 2019 with a mission to provide the best economics for all our customers’ needs: from small satellite launches to larger in-space orbital operations in both the defense and commercial sectors. Located in Kent, Washington, we design and manufacture the most affordable and reusable rocket engines and

  2. Timeline/timeline

    Timeline

  3. Timelinebackup/timeline2

    The suborbital rocket prototype powered by Centurion engine is getting ready for ground and flight testing over the course of 2026. Short hops and suborbital altitude test flights up to 50 km are planned to gain flight data on booster reusability and reliability. The rocket is designed as a 250-450 km mid-range vehicle optimized to launch from THAAD canisters and projected is to cost $200K/unit.

  4. About Us/about-us

    About Us We founded Rocket Propulsion Systems (RPS) in 2019 with a mission to provide the best economics for all our customers’ needs: from small satellite launches to larger in-space orbital operations in both the defense and commercial sectors. Located in Kent, Washington, we design and manufacture the most affordable and reusable rocket engines and

Contact

2 pages
  1. Get in Touch/about-us/contact

    Get in Touch We are seeking a Machinist to join us full time in Kent, WA 19039 68th Avenue South, Suites R107-R108 Kent, WA 98032 info@rocketpropulsion.systems

  2. Get in Touch/about-us/contact

    Get in Touch We are seeking a Machinist to join us full time in Kent, WA 19039 68th Avenue South, Suites R107-R108 Kent, WA 98032 info@rocketpropulsion.systems

Homepage

2 pages
  1. Homepage/

    Dynamic Space Operations We’ve designed both our engines and space vehicles to be highly scalable so that they can consistently meet the changing needs of our customers’ business models and missions. RPS rocket engines cost only $150K to purchase and will power hundreds of rockets annually. RPS engines power RPS orbital transfer vehicles, which are adept at

  2. Homepage/

    Dynamic Space Operations We’ve designed both our engines and space vehicles to be highly scalable so that they can consistently meet the changing needs of our customers’ business models and missions. RPS rocket engines cost only $150K to purchase and will power hundreds of rockets annually. RPS engines power RPS orbital transfer vehicles, which are adept at