Walter Minor

From Wikipedia, the free encyclopedia

Type	Inline piston engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines
First run	1929

The Walter Minor is a family of four, six and twelve-cylinder inverted inline air-cooled engine used on light aircraft. First produced in 1929, the Minor engines have 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] Today Avia continues to produce the Minor.

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

Aero Ae 45
Aero Ae 50
Aviator Shershen'
Beneš-Mráz Beta-Minor
Fry Esprit VFII
Let L-200 Morava
LIBIS KB-6
LWD Zuch
Manzolini Libellula II
Nord NC.856
Nord NC.859
Nord NC-860
Oeffag O.K.15
Orličan L-40 Meta Sokol
Pasotti Airone
Praga E-210
Praga E-211
Starck AS-57
Zlin 22
Zlin Trener

Specifications (Minor 4-cylinder)

Walter Minor 4-III

Data from: Oldengine.org ^[3]

General characteristics

Type: 4-cylinder inverted inline air-cooled
Bore: 105mm (4.14 in)
Stroke: 115mm (4.53 in)
Displacement: 4 Liter (244 cu in)
Length: 1,119mm (44.09 in)
Width: 440mm (17.32 in)
Height: 630mm (24.80 in)
Dry weight: 93kg (205 lb)

Components

Valvetrain: 1 inlet and 1 exhaust valve per cyclinder
Fuel system: 1 claudel carburetor
Fuel type: 68 octane
Cooling system: air-cooled

Performance

Power output: 95 hp at 2,550 rpm
Compression ratio: 5.3:1
Power-to-weight ratio: 2.41lb/hp at cruise power

References

↑ Gunston 1989, p.174.
↑ http://www.enginehistory.org/Museums/national_technical_museum.shtml. Retrieved 8 July 2013. Missing or empty |title= (help)
↑ Oldengine.org

http://www.enginehistory.org/Museums/national_technical_museum.shtml. Retrieved 8 July 2013. Missing or empty |title= (help)
Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
Oldengine.org

External links

Wikimedia Commons has media related to Walter Minor.

v t e Walter aircraft engines

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