Hybrid rockets, which date back to the 1930s, fall in between these two systems. They are inherently safe, use nontoxic, inexpensive fuels, and can be turned on and off. But scientists have been ...

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.

Rocket hybrid propulsion market is rapidly expanding, driven by military advancements, growing space tourism, and innovative ...

HICKAM will design and manufacture a modular, compact, and portable testing platform for characterizing hybrid rocket engines. The team will also manufacture two 300 lbf hybrid rocket motors to prove ...

Hybrid rocket engines offer perks from both worlds, with simple solid fuel and the ability to throttle down by regulating oxidizer flow. Naturally, [Integza] decided he should try and 3D print one.