If you look at aircraft from the Second World War or earlier, you'll notice that many of them have engines with large frontal areas and cylinders arranged about the propeller crankshaft. This a radial ...

The Twin Cat was a late 1970s/early '80s supplemental type certificate (STC) modification for the Grumman Super Ag Cat, replacing its single radial engine with two Lycoming flat-6 engines to offer ...

The Breda-Zappata BZ.308, a sleek Italian four-engine airliner, first flew in 1948. Designed by Filippo Zappata, it blended ...

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, ...