Hypersonics and Propulsion
Rocket Engines and Propulsion Systems
Propulsion technologies, engineering, and test infrastructure for launch vehicles and in-space applications.

Mission propulsion
Spacecraft and In-Space Propulsion
Sierra Space develops chemical propulsion solutions for launch-vehicle upper stages, spacecraft maneuvering, and reaction control. Mission requirements guide the propulsion architecture, propellant selection, and development approach.
Engine development
Rocket Engines
Our patented VORTEX® engine thrust chamber assembly confines propellant mixing and burning to the core region of a coaxial vortex flow field.

Development infrastructure
Test Infrastructure
We provide economical testing services for rapid development of rocket engine components and systems. In addition, testing can be conducted for cryogenic components and instrumentation. The appropriate test configuration depends on the hardware, propellant, and program requirements.

Program scope
Engineering Through Qualification
Sierra Space’s propellants and combustion research includes development of energetic binders and new oxidizers, along with work targeting atomization, vaporization, mixing and ignition of propellant gels. Diagnostic work includes spray analysis, phosphor thermometry and gamma densitometry measurements; the latter measures void fraction in cryogenic and other two-phase flows.
Questions
Propulsion Systems FAQs
- What propulsion systems does Sierra Space develop?
- Sierra Space develops engines and thrusters for applications including launch-vehicle upper stages, spacecraft maneuvering, and reaction control. Specific configurations depend on the mission.
- Does Sierra Space provide propulsion testing?
- Sierra Space describes rocket-engine, component, and instrumentation testing. Contact the team to discuss the scope appropriate for a particular program.
- How should I discuss a propulsion requirement?
- Start with the intended application, hardware requirements, and development or test needs. Sierra Space can discuss the relevant capabilities and potential scope of support.