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1920s French piston aircraft engine
The Lorraine 7M Mizar , also called the Lorraine 240CV Mizar , was a seven-cylinder air-cooled radial engine designed and built in France during the 1920s and 1930s. Nominal power was given as 240 hp (180 kW) at 1500rpm (maximum continuous power), with a maximum output of 283 hp (211 kW) at 1800 rpm.
Variants
7Ma Mizar
7Mb Mizar
7Me Mizar
7Mer Mizar
Applications
Specifications
Data from Société Générale Aeronautique
[1]
General characteristics
Type: 7-cylinder air-cooled radial piston engine, left hand rotation (facing the propeller)
Bore : 140 mm (5.51 in)
Stroke : 150 mm (5.91 in)
Displacement : 16.163 L (986.33 cu in)
Length: 1,190 mm (46.85 in)
Diameter: 1,240 mm (48.82 in)
Dry weight : 265 kg (584 lb)
Components
Valvetrain : pushrod operated overhead valves, two per cylinder
Oil system: pressure fed
Cooling system: air-cooled
Performance
Power output: 283 hp (211 kW) at 1800 rpm (maximum)
240 hp (180 kW) at 1500 rpm (maximum continuous)
Compression ratio : 5
Specific fuel consumption : 0.308 kg/(kW h) (0.507 lb/(hp h))
Oil consumption: 0.0161 kg/(kW h) (0.0265 lb/(hp h))
References
Notes
Bibliography
V- and W- piston engines Radial piston engines