The Bristol Centaurus is a 53-litre radial engine from an era when aircraft relied on raw displacement and mechanical force.

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 ...

Based on a Wright R-975 Whirlwind radial engine, the Hackel-Wright Chopper is unlike any motorcycle you've seen before. It borrows components from Harley and Toyota and is built by a guy named Al ...

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

Bore and Stroke: 156 mm (6.125 in.) x 174 mm (6.875 in.) The Wright Cyclone series began in 1924 with a U.S. Navy contract for a nine-cylinder air-cooled radial engine having approximately the same ...

Just because LEGO Technic is technically a toy doesn’t mean that you cannot do solid engineering with it, like building ...