Not pretty, but we’ve done worse ourselves. By 12 minutes in, we were worried it wasn’t going to work again, but it did work although it wasn’t terribly reliable to start. Still, when it worked, it ...

LiquidPiston built a functioning engine and has demonstrated it powering a Go-kart. Shkolnik says the engine could see its first practical application, in a drone, within a few years. The liquid ...

General Atomics is looking at a hybrid-electric power unit with a liquid piston engine that fits in the palm of the hand that will run at 10,000 RPMs. A lightweight and quiet power source is the key ...

XCOR announced today that it has achieved a key technical milestone with its flight weight rocket piston pump hardware. XCOR engineers have successfully and repeatedly pumped liquid oxygen (LOX) at ...

A company that makes an innovative rotary internal combustion engine just received a Phase I research grant from the U.S. Army to develop hybrid-electric propulsion for UAVs. The development ...

The first video from [3DPrintedLife] attempting to make a liquid piston engine was… well… the operative word is attempting. The latest video, though, which you ...

September 23rd, 2013, Mojave, California and Centennial, Colorado – XCOR Aerospace and United Launch Alliance announced significant progress today in the XCOR/ULA liquid hydrogen (LH2) engine ...