Engines need a perfect ratio of air to fuel for optimal combustion, and too much of either comes with its own set of ...

Porsche could be reviving an old technology for its future internal combustion engines. New patent filings suggest Zuffenhausen’s finest may be resorting back to air-cooling for its future mid- and ...

One of the best aspects of a project build for automotive enthusiasts is the quest for improvements that will add to the vehicle in some way. There are several engine components to replace, add, or ...

Air-cooled engines were once commonplace in the auto and moto industries. The most well-known were the Porsche flat six, VW flat four, Corvair, and numerous motorcycle engines, from BMW to ...

Air engines are a common occurrence here on Hackaday. They’re relatively novel and reasonably easy to 3D print without requiring any fluids or supporting machinery. For example, [Tom Stanton] took a ...

The Next Generation Adaptive Propulsion program is now projected to complete prototyping work in 2031, a cumulative delay of three years compared to earlier projections.

Flying slightly higher than a standard airliner, the aircraft known as Air Force One, or VC-25, is much more than a modified Boeing 747, even though they look almost identical from the outside. Inside ...