New plasma-powered rocket design could make solid motors restartable
SMRTR summary
Solid rocket motors are simple and powerful but can't be stopped or restarted once lit. The Aerospace Corporation, USC, and the Naval Postgraduate School are developing plasma-based technology called NPPD to change that, potentially enabling small satellites to perform multiple maneuvers using one compact, fuel-flexible solid motor.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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