Plus Model AL7013 1/72 Wright R-3350 Engine

The Wright R-3350 was a twin-row, 18-cylinder radial engine that was developed from the Wright R-1820 Cyclone and was one of the most powerful radial engines produced in the United States. Work on the engine began in January 1936 and the first R-3350 was run in May 1937. Development proceeded slowly due to the complex nature of the engine and concentrated effort on the Wright R-2600. It was similar in design to the company's R-2600 14-cylinder radial, sharing the same bore and stroke, but adding four more cylinders for additional displacement. Development accelerated after the USAAC issued its requirement for a long-range heavy bomber in 1940 resulting in the Boeing B-29 Superfortress. A serious effort was made then made to get the engine into production and the R-3350 finally made its first flight in 1941.