One of his more interesting builds is his series on building rocket engines out of PVC pipe written in conjunction with [Chuck Knight]. For the propellent grains, the PVC rocket didn’t use the ...

and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before, so that’s what this roundup evolved into. First up is [Robert Watzlavick], who has been ...

The company is running final tests on its systems, including static fires, separation trials, and pressure tests across ...

The development of the engine is expected to make interplanetary trips much faster and expand humanity's access to worlds ...