All those 60s, 70s, 80s and 90s kids out there may remember the classes of model rocket engines – generally A, B, C, and D sized engines used to push your cardboard tube with balsa fins skyward.

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 ...

While not considered to be high today — some hobbyist model rockets soar to 2,500+ feet — it was ... Goddard first developed ...

Eventually, a 16-foot-tall model of Blue Origin’s New Glenn rocket will take its place beside the engine. Two BE-3U engines power the upper stage of the New Glenn orbital-class rocket ...