When the idea of an engine hacks theme was being kicked around at Hack a Day, the subject of rocket engines was one of the first to come up. There was a problem though; solid rocket motors are far ...

[James] still has a ways to go to beat his previous record, so intends to explore adding ducted fan propulsion to get ... if you can’t lay your hands on rocket engines, you could always consider ...

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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 ...