Lorraine 12E Courlis

12E Courlis
Type	Piston aero engine
National origin	France
Manufacturer	Lorraine-Dietrich
First run	1922

The Lorraine 12E Courlis was a W-12 (broad arrow) aero engine produced by the French company Lorraine-Dietrich during the 1920s and 1930s.

Variants

12E

12Eb

12Ebr

12Ed

12Edr

12Ee

12Ew

The standard Eb fitted with a supplementary supercharger.

Elizalde A

The 12E built under licence in Spain by Elizalde S.A.

Applications

Aircraft

• Aichi AB-1
• Bernard SIMB V.1
• Blériot-SPAD S.86
• Breguet 19
• Canete Pirata
• Caudron C.17
• Dewoitine D.12
• Dewoitine D.25
• FMA AeT.1
• Grigorovich MR-2
• Grigorovich ROM-1
• Hiro H1H
• Levasseur PL.4
• Levasseur PL.5
• Levasseur PL.8
• Lioré et Olivier LeO H-134
• Potez 24
• Potez 25
• Potez 26
• PWS-10
• Rohrbach Ro IIIa Rodra
• SET 2
• Villiers II
• Villiers XXIV
• Wibault 73
• Yokosuka E1Y

Other applications

• Argentine Nahuel tank

Specifications (12Ed)

Data from Gunston.

General characteristics

• Type: 12-cylinder piston engine W-12 °60
• Bore: 120 mm (4.72 in)
• Stroke: 180 mm (7.1 in)
• Displacement: 24.4 L (1,491 cu in)
• Length: 54.1 in (1370 mm)
• Width: 47.6 in (1210 mm)
• Height: 44.8 in (1140 mm)
• Dry weight: 822 lb (373 kg)

Components

• Valvetrain: single intake and single exhaust valves per cylinder actuated via double overhead
• Fuel system: carburettor
• Fuel type: Petrol
• Cooling system: Liquid-cooled

Performance

• Power output: 336 kW (450 hp) at 1,850 rpm
• Compression ratio: 6.0:1

See also

Comparable engines

• Farman 12We
• Napier Lion
• Sunbeam Kaffir

Related lists

• List of aircraft engines

References

Bibliography

• Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9