Over 50,000 R-2600s were built at plants in Paterson, New Jersey, and Cincinnati, Ohio.
Wright R-2600
Cyclone Engine
In 1935, Curtiss-Wright began work on a more powerful version of their successful R-1820 Cyclone, which was at the heart of many famous aircraft, including the first civil versions of the DC-3 and every wartime example of the Boeing B-17 Flying Fortress and Douglas SBD Dauntless bombers. The result was the R-2600 Twin Cyclone, with 14 cylinders arranged in two rows. The 1,600 hp engine powered several important American-designed World War II aircraft, including the A-20 Havoc, B-25 Mitchell, TBF Avenger, SB2C Helldiver, and PBM Mariner.