The R-4360 Wasp Major was the peak of reciprocating aircraft engines, a 28-cylinder monster capable of 4,000 horsepower. In this breakdown, we trace how piston engines evolved from the Wright brothers ...

We all know how a conventional internal combustion engine works, with a piston and a crankshaft. But that’s by no means the only way to make an engine, and one of the slightly more unusual ...

Just about every piston engine is defined by two basic measurements: bore and stroke. Bore is the diameter of the cylinder. Stroke is the distance the piston travels from bottom dead center to top ...

While there have been many unusual engine designs over the years, there haven't been many advancements involving the inner workings of the piston engine, except for higher-quality components, since ...