but this hybrid approach is much different. When a rocket motor using solid propellant is lit it continues to burn until all of the fuel is consumed. That is not the case with this design.

Team Abstract: The HADES team is seeking to add to the collective CU Boulder knowledge base of hybrid rockets through the development of a liquid-solid hybrid engine. This engine will be used to power ...

There was a problem though; solid rocket motors are far too common to be interesting, and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before ...