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 ...

To do so, he looked towards rocket power, and started a new build. The design consists of ... power is solely from hobby rocket motors, providing thrust for 1.6 seconds, meaning flight times ...

Sol Motors from Böblingen has certainly achieved this with the Pocket Rocket. It consists primarily of a thick aluminum tube that fulfills two tasks: on the one hand, it serves as a solid upper ...

Participants aim to build rockets that will reach their maximum ... can launch Class 3 rockets—which have high-propulsion motors—to such high altitudes. Since 1991, hobbyists, scientists ...