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D-12
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D-12

aircraft engine
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Quick Summary

The D-12 was a 12-cylinder, liquid-cooled aircraft engine designed by Curtiss. It set international standards for speed and streamlining in the 1920s. This innovative engine was used in high-speed racing biplanes, including those that competed in the Schneider Trophy air races. One notable aircraft powered by the D-12, the Curtiss R3C-2, won the 1925 Schneider race with a speed of 232.5 miles per hour. The engine's design influenced European manufacturers, with British company C.R. Fairey acquiring license rights to build it and incorporating it into their Fairey Fox light bomber, which entered service in 1926.1

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2 Britannica Sources
  1. jet engine - Medium-bypass turbofans , high-bypass turbofans , and ultrahigh-bypass engines
  2. military aircraft - Civilian design improvements

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