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Engine

Wright R-3350 Duplex-Cyclone

Aircraft Engines

The Wright R-3350 Duplex-Cyclone is an American air cooled radial piston engine developed in the early 1940s, most famously powering the Boeing B-29 Superfortress bomber. It later powered postwar airliners such as the Lockheed Super Constellation and the Douglas DC-7 before piston engines gave way to jets on major airline routes.

Facts
Year
1937 1
Significance
A twin-row 18-cylinder radial engine that powered critical military and civilian aircraft from World War II through the 1950s, including the Boeing B-29 Superfortress and Lockheed Constellation. 1
Manufacturer or Builder
Wright Aeronautical 1
Displacement or Thrust
3,350 cubic inches (54.9 litres) 1
Classification
Configuration
Radial 1
Sources
1. Wikipedia: Wright R-3350 Duplex-Cyclone
Wikipedia
  • Opening section
    the R-3350's design required a long time to mature, and was still experiencing problems with reliability when used to power the Boeing B-29 Superfortress.
  • Design and development
    Wright's first R-3350 prototype engines with a 3,350 in3 (54.9 L) displacement were run in May of the same year.
  • Introduction, cylinder configuration
    The Wright R-3350 Duplex-Cyclone is an American twin-row, supercharged, air-cooled, radial aircraft engine with 18 cylinders displacing nearly 3,350 cubic inches (54.9 L).
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