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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). Power ranged from 2,200 to 3,700 hp (1,640 to 2,760 kW), depending on model.
Later that year the US Navy awarded Wright a contract to develop two new air-cooled radial engines. The first, called the P-1, was a 9-cylinder single row design of 1,652 cu in (27.07 L) displacement that was derived from an earlier Lawrence design, it produced 400 hp (300 kW). [ 2 ]
Wright R-3350 Duplex-Cyclone Turbo-Compound radial engine.. The first aircraft engine to be tested with a power-recovery turbine was the Rolls-Royce Crecy.This was used primarily to drive a geared centrifugal supercharger, although it was also coupled to the crankshaft and gave an extra 15 to 35 percent fuel economy.
Project for a version of the 119D with two R-3350 engines, was designated XC-128B, none built. YC-119F One C-119C modified with two R-3350-85 engines. C-119F Production variant, (71 produced by Henry Kaiser with Wright R-3350 engines), 256 built for the USAF and RCAF. C-119G
The engines were also changed from the Bristol Proteus turboprop engines to Wright R-3350 turbo-compound piston radial engines, which had lower fuel consumption necessary for extended missions at low level. [5] At the design stage the Napier Nomad, another turbo-compound engine, was also considered, although the Nomad was later cancelled.
Four eighteen-cylinder Wright R-3350 Duplex-Cyclone Turbo-Compound engines provided power. [7] The prototype flew in May 1953 and American received their first DC-7 in November, inaugurating the first non-stop east-coast-to-west-coast service in the country (unrealistically scheduled just under the eight-hour limit for one crew) and forcing ...
Slightly redesigned engine cowlings and new Curtiss Electric propellers were also introduced. Lockheed also offered an L-749 to L-749A conversion kit. The first civil customer for the L-749A was South African Airways but its largest customer was TWA, which had 26 L-749As; the last of these were not retired until 1967. A cargo version of the L ...
The Marlin was designed as a gull-winged aircraft to place the engines and propellers high above the spray. Power was provided by two Wright R-3350 radial engines. The rear hull did not lift sharply from the water at the tail, instead rising up steadily, a Martin innovation; this gave the aircraft a longer base of flotation and reduced ...