Dream Chaser. Sierra Space
Sierra Space has developed a new thermal protection system (TPS) for reusable space vehicles, designed for its Dream Chaser spacecraft.
Created in collaboration with Oak Ridge National Laboratory (ORNL), the TPS uses a silicon-carbide-based composite that combines the heat resistance and durability of silicon carbide with the strength and stability of carbon fiber. This lightweight material provides essential insulation and ensures stable flight dynamics.
The Dream Chaser, the first winged commercial spaceplane, will deliver supplies and science experiments to the International Space Station as part of NASA’s Commercial Resupply Services program. The TPS draws on 30 years of experience from NASA’s Space Shuttle program, incorporating proven advancements in thermal protection technology.
ORNL principal investigator Greg Larsen, referring to the need for a smooth exterior surface, said:
“Keeping a consistent outer mold line is important for reusability. It keeps the aerodynamics the same to allow the vehicle to fly as designed.”
ORNL and Sierra Space have completed the initial development phase and applied for a patent on the material.
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