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 ...

Motorcycle engines live and die by how well they shed heat, and the choice between liquid and air cooling shapes everything ...

Porsche switched to water cooling to meet stricter emissions and noise rules, handle more power and heat, improve efficiency, ...

In its purest form, an engine is nothing more than an air pump; it takes in air and then returns it, although in a slightly modified form. Maximizing an engine's ability to process air will also ...

<blockquote class="pullQuote"><em>Many commonly accepted ways of doing things are based on tradition or opinion rather than sound engineering, physics, and chemistry ...

The 1967 Pontiac GTO gave buyers a rare choice between two distinct 400 cubic inch performance paths, the 400 HO and the Ram ...

The Air Force is ditching its plans to develop a new engine for its F-35 fleet and will instead upgrade the existing Pratt & Whitney engines so the planes have enough power to use future weapons. The ...

Senior Airman Josh Serafin monitors the ignition of B-52H Stratofortress engines at Minot Air Force Base, N.D. Each B-52 uses eight TF33 engines to fly. (Senior Airman J.T. Armstrong/U.S. Air Force) ...

DAYTON, Ohio—The Air Force is working on one engine design to power the service’s highly secret new fighter jet—no matter which company builds the plane. The future engine, called Next Generation ...

Wave Engine Corp has aced a demonstration flight of a simple jet engine with no moving parts. A modern version of a pulsejet, the J-1 engine powered a UAV through take-off and several mid-air ...

Using liquid cooling for a motorcycle engine makes its temperature more predictable, but air cooling lets an engine be ...