One of his more interesting builds is his series on building rocket engines out of PVC pipe written ... and sugar mixture of so many homebrew solid rockets. Instead, it uses Sorbitol, an ...

Liquid fuelled engines are throttleable and monstrously powerful, but highly complex. Meanwhile, solid rocket engines are simple and cheap, but once you light them, they’re going full-bore until ...

China says it fired up the world’s largest single-segment solid-fuel rocket engine for the first time, at a ground testing facility in the country’s northwest on Tuesday. The rocket’s 3.5 ...