there’s more than enough info on his site to try and recreate some of his experiments, but perhaps you should start here instead: How to Design, Build and Test Small Liquid-Fuel Rocket Engines.

as ‘rocket city’ for BE-4 engine Amazon CEO Jeff Bezos’ space venture, Blue Origin, plans to invest $200 million to build its BE-4 rocket engine in a new facility in Huntsville, Ala., ...

To do so, he looked towards rocket power, and started a new build. The design consists of ... Of course, if you can’t lay your hands on rocket engines, you could always consider spinning up ...