We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and tested in his shop. It is actually using a hollow cylinder of acrylic as the fuel, with gaseous oxygen as an oxidizer.

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 ...

Most any rocket engine you’d find on a spacecraft – save for solid or hybrid rockets ... of the intense heat, the fuel is circulated around the chamber before ignition giving a motor ...