It may seem like a horse-drawn Zeppelin, but Astro Mechanica seems to be all-in on its revolutionary hybrid-electric ...

The world of automotive engineering is filled with innovation and experimentation, leading to some rather unusual engine designs that made it to production, albeit briefly. These engines often broke ...

While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive, ...

In 1925, the Wasp was a leap forward in aircraft power, reliability, and performance – one that rocketed the trajectory of aviation technology into the post-war era. Its nine-cylinder, air-cooled ...

As with many things in technological development, identifying the most revolutionary designs depends in part on what aspects one wants to stress. And when it comes to commercial aircraft engines, it ...