Wright R-1300
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The Wright R-1300 Cyclone 7 was a US aircooled 7-cylinder supercharged radial engine produced by Curtiss-Wright.
The R-1300 is more or less a single row Wright R-2600. The engine was in mass production but not widely used. Engineering begun in 1942 but the first flight of an R-1300 did not take place until 1949. The engine was produced in license at Kaiser-Frazer and, later, at Lycoming
The engine saw action in the North American T-28 Trojan and the Sikorsky UH-19 Chickasaw. Furthermore it was used in the Ayres Thrush.
For use in helicopters the R-1300-3 was derated to 690.3 hp (515 kW)and uses forced cooling.
[edit] Specifications (R-1300-1)
General characteristics
- 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: 1,674 in (27.4 L)
- Length: 48.22 in (1,225 mm)
- Diameter: 55 in (1,397 mm)
- Dry weight: 917lb (461 kg)
Components
- Valvetrain: Two pushrod-actuated valves per cylinder with sodium-cooled exhaust valve
- Supercharger: 1-stage
- Fuel system: Stromberg PR48A downdraft carburetor with automatic mixture control
- Cooling system: Air-cooled
Performance
- Power output: 800 hp (596 kW)
- Specific power: 0.47 hp/in³ (21.75 kW/L)
- Compression ratio: 6.9:1
- Power-to-weight ratio: 0.87hp/lb (1.29 kW/kg)
[edit] Application
[edit] Related contents
- Wright Cyclone family
- Wright R-1820 Cyclone 9
- Wright R-2600 Cyclone 14
- Wright R-3350 Cyclone 18 (Duplex Cyclone)
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