We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and ... There are two aluminum plates which complete either end of the chamber. The intake has a fitting for a valve which ...

In addition to increasing performance, the greatest demand on modern launch systems is to increase reliability and increase service life while simultaneously reducing production and operating costs.

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 ...