Wright R-2600 Twin Cyclone Piston Engine

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Aircraft Engine Manufacturer
Wright
Aircraft Engine Type
Piston
Dry Weight (kg)
927.5964
Diameter (mm)
139.7
Length (mm)
157.6324
Wikipedia Article (URL)
en.wikipedia.org/wiki/Wright_R-2600_Twin_Cyclone
Fuel System
Stromberg PR48A downdraft carburetor with automatic mixture control
Oil System
Dry sump with one pressure pump and two scavenge pumps
Cylinders
14
Cylinders Disposition
radial
Bore (mm)
155.575
Stroke (mm)
160
Displacement (L)
42.6719
Supercharger
Single-stage two-speed centrifugal type supercharger, impeller diameter 11 in, blower ratio 7.06:1 at slow speed and 10.06:1 at high speed
Compression Ratio
6.9
Valvetrain
Two pushrod-actuated valves per cylinder with sodium-cooled exhaust valve
Cooling
Air-cooled
Maximum Takeoff Power (kW)
1304.975
Specific Power (kW/L)
0.4996
Power To Weight (kW/kg)
1.414

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