Walter Minor

Minor
Preserved Walter Minor 6-III
Type Inline piston engine
National origin Czechoslovakia
Manufacturer Walter Aircraft Engines
First run 1929

The Walter Minor is a family of four- and six-cylinder inverted inline air-cooled engines, developed under auspices of ing. Šimůnek and used on light aircraft. First produced in 1929, the Minor engines' family has an advanced design for the period and sports steel cylinders, aluminum heads and overhead valves, with identical bore and stroke of 105 mm (4.1 in) and 115 mm (4.5 in), respectively. Typical power ratings varied from 105 hp to 160 hp.[1] After Walter concentrated on the turbine powerplants only, the production of piston engines has been transferred to the Avia company that further developed the family, bringing fuel injection, as the Avia M-137 and M-337. Nowadays the smallest of the family, the four-cylinder carburetted Minor, is produced by a small company in the Czech Republic, while the M337 was available from the LOM Prague.

Variants

Minor Sc.
Minor M 337
Minor 4-I
Minor 4-II
Minor 4-III
Minor 6-I
Minor 6-II
Minor 6-III
Minor 12 1-MR
[2]

Applications

LAZ-7

Specifications (Minor 4-cylinder)

Walter Minor 4-III

Data from: Oldengine.org [3]

General characteristics

Components

Performance

See also

Comparable engines
Related lists

References

  1. ↑ Gunston 1989, p.174.
  2. ↑ "National Technical Museum, Prague". Retrieved 8 July 2013.
  3. ↑ Oldengine.org
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