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 ...

[Joe Barnard] is working on a model rocket that can land vertically under its own power, like the Falcon 9 ... but suffered from high friction forces during release, and the integrated covers ...

The newly tested engines could power a variety of space projects.

One just launched the world’s biggest rocket, with mixed success. The other makes small model rockets for hobbyists, and it’s ...

Not only would Sabre power units ... an air-breathing jet engine from standstill to about Mach 5.5 (5.5 times the speed of sound) and then transition to a rocket mode at high altitude, going ...