The Wright R-2600 is a twin-row, air-cooled radial aircraft engine developed in the 1930s. It features 18 cylinders arranged in two rows of nine, producing a maximum output of around 1,600 horsepower. This engine was widely used in various military and civilian aircraft during World War II. Notable aircraft powered by the Wright R-2600 include the Douglas A-20 Havoc and the Grumman F6F Hellcat. Its reliability and performance made it a popular choice for many aviation manufacturers of the time, contributing significantly to the war effort and post-war aviation advancements.