Bore and Stroke: 133 mm (5.3 in.) x 127 mm (5.0 in.) Originally known as Fischer and Jacobs, this manufacturer was organized in Philadelphia in 1927, and was one of a number of manufacturers of small ...

During World War II the radial engine was popular, and it was used in many fighter and bomber aircraft. Manufacturers in aviation used them because the engines deliver a ton of power for their size, ...

As the automotive propulsion industry shifts toward electrification, the last-of-breed combustion engines are a stultifyingly similar bunch, focused around the same CAD-optimized 500cc cylinder ...