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. Power ranged from 2,200 to 3,700 hp,
Wright R-3350 Duplex-Cyclone on display at Malmö Museer – Teknikens och sjöfartens hus (Science and Maritime House), Malmö, Sweden.
Wright R-3350 Turbo-Compound radial engine. Two exhaust recovery turbines are shown outside the impeller casing area (top (silver) and lower (red blading)) that are geared to the crankshaft.
Wright R-3350 Turbo-Compound radial engine fitted at the number four position on the starboard wing of a Lockheed Super Constellation
R-3350 on display at the Air Zoo
The Lockheed Constellation is a propeller-driven, four-engined airliner built by Lockheed Corporation starting in 1943. The Constellation series was the first civil airliner family to enter widespread
Wright R-3350 Duplex-Cyclone
…use gasoline direct injection, which improved reliability. After the war, the engine was redesigned and became popular for large aircraft, notably the Lockheed Constellation and Douglas DC-7. Following the war, the Turbo-Compound system was developed to deliver better fuel efficiency. In these versions, three power-recovery…
A USAF C-69, the military version of the Constellation
A preserved C-121C Super Constellation, registration N73544, in flight in 2004
The first Lockheed Constellation on January 9, 1943
TWA L-749A Constellation at Heathrow in 1954 with an under fuselage "Speedpack" freight container