AFRL and Ursa Major have successfully completed the first flight of the ARMD, powered by the Draper liquid rocket engine.

Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start this engine and took some time to fully complete it. #shorts #diy #asmr #re ...

Join me as I tackle the challenges of repairing and rebuilding my custom rotary valve engine after a dramatic failed start and heavy smoke. Watch the detailed disassembly, from removing the covers to ...

There’s something undeniably cool about the sound of a blown modular engine when you stand on the throttle. The Eaton whine that defined the early 2000s still hits, but technology has moved on. Now ...

Variable valve timing (VVT) and variable valve lift (VVL) have very similar names, both referring to variable valve performance. Does that mean that they are basically the same thing? The are most ...

Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

The tug-of-war for power in INDYCAR will continue … in the car. And that's a pivotal aspect to having a vibrant series. Honda and Chevrolet will remain in INDYCAR for the foreseeable future, as they ...

Banks have begun marketing up to $7.7 billion in financing to support bids for a majority stake in Volkswagen’s Everllence diesel engine unit. The potential sale, valued at more than €5 billion, comes ...

Steam Frame is still shipping sometime in the first half of 2026, although now Valve says the current component shortage has led the company to revise both price and release date of the standalone VR ...

Valve's second attempt at launching its Steam Machine is still set to happen in early 2026, according to AMD CEO Dr. Lisa Su. In an AMD earnings call, Su specifically mentions support for Valve Steam ...

CEO expectations for AI-driven growth remain high in 2026—at the same time their workforces are grappling with the more sober reality of current AI performance. Gartner research finds that only one in ...

A hybrid-electric jet engine may seem as absurd as a horse-drawn Zeppelin, but GE Aerospace is ground testing a new megawatt-class hybrid turbofan engine and its full powertrain that is powerful ...