Wright R-1300 Cyclone 7 is an American air-cooled seven-cylinder supercharged radial aircraft engine produced by Curtiss-Wright. [1 ]
Design and development [ edit ]
The R-1300 is basically a single row
Wright R-2600. The engine was mass-produced but not widely used. Engineering began in 1942 but the first flight of an R-1300 did not take place until 1949. The engine was produced under license by Kaiser-Frazer and later by AVCO Lycoming. [2 ]
The engine was used in combat — the R-1300-1A and -1B in the A model
North American T-28 Trojan and the R-1300-3, -3A, -3C and -3D in the Sikorsky H-19 Chickasaw. The R-1300-1B was used to power the Ayres Thrush. The R1300-4 and -4A were used in the N class blimp; 50 of these variants were produced by AVCO. [2 ]
Early-production engines had vibration problems, an improved lateral dampener in the crank brought about most of the model changes.
Variants [ edit ]
A direct drive version of the R-1300-1. It had a 0.5625:1 reduction drive. Both used the PD9F1 carburetor.
[2 ] R-1300-3
Derated to 690.3 hp (515 kW), uses forced-air cooling fan and uses a PD9G1 carburetor.
[2 ] R-1300-4
Similar to the R-1300-1, uses some different accessory components.
[2 ] R-1300-CB7A1
With reduction gear for use on fixed wing aircraft.
Applications [ edit ]
Specifications (R-1300-1A) [ edit ]
Data from Type Certificate Data Sheet 5E-14. [1 ]
Type: 7-cylinder supercharged air-cooled single row radial engine
Bore: 6.125 in (155.6 mm)
Stroke: 6.312 in (160.2 mm)
Displacement: 1,301 cu in (21.3 L)
Length: 48.22 in (1,225 mm)
Diameter: 55 in (1,397 mm)
Dry weight: 1,055 lb (478 kg)
See also [ edit ]
References [ edit ]
External links [ edit ]