Flat-4
Revision as of 06:24, 16 March 2006 by 66.250.57.186 (talk)
A flat-4 is a four cylinder internal combustion engine where the cylinders are arranged in a flat configuration. This is not a common configuration, but some brands of automobile have favored such engines and it is a common configuration for smaller aircraft engines such as made by Lycoming. Although they are considered to be superior to