Lorraine_7M

Lorraine 7M Mizar

Lorraine 7M Mizar

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.

Quick Facts 7M Mizar, Type ...

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

  1. [1]
    Revue de la Société Générale Aéronautique (PDF) (in French). Paris: Société Générale Aeronautique. November 1932. pp. 22–24. Archived from the original (PDF) on 17 October 2014. Retrieved 12 October 2014.

Bibliography
Share this article:

This article uses material from the Wikipedia article Lorraine_7M, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.