Handbuilt 4-Rotor Engine

This was a project that took about five years of weekends to put together. There was a lot of trial and error as jury-rigg...

This was a project that took about five years of weekends to put together. There was a lot of trial and error as jury-rigged parts were improvised and revised, leaks were identified and plugged, and byzantine electrical diagrams were decoded. It still does not run smoothly, as there likely is a problem with the intake system that has prevented smooth timing at idle. But she runs!