that drew power from five Aerojet LR-87-AJ11 engines, and a second stage that relied on five solid rocket motors to get going. Alternatively, a version that used four LR-87 engines on the first ...

To do so, he looked towards rocket power, and started a new build. The design consists of a combination of 3D printed parts, laser-cut plywood bulkheads, and foamboard flight surfaces, with a few ...