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Walter Major
Walter Major 4-1
PZInż. Major 4

 

Walter Major was a family of Czechoslovak aircraft inline engines developed by Walter Aircraft Engines in the 1930s. First run in 1934, it was available in either four or six cylinder configuration, with identical bore and stroke of 118 mm (4.6 in) and 140 mm (5.5 in), respectively, the Walter Majors were primarily used in light aircraft. License-built in Poland by the state-owned Państwowe Zakłady Inżynieryjne (as the PZInż. Major 4), the engine was used in, among others, Zlin Z-XIII, RWD-11 and one of the PWS-35 Ogar prototypes.

 

Applications:
Beneš-Mráz Be-50 Beta-Minor
Beneš-Mráz Be-52
Beneš-Mráz Be-56
Beneš-Mráz Be-250
Beneš-Mráz Be-251
González Gil-Pazó GP-4
PWS-35 Ogar
Rogožarski SIM-XII-H
RWD-11
RWD 20
Spartan Cruiser
Zlin Z-XIII

 

Specifications:
Major-4
Type: 4-cylinder inverted inline engine
Bore: 118 mm
Stroke: 140 mm
Dry weight: 140 kg
Cooling system: Air-cooled
Power output: 130 hp
Compression ratio: 5.2:1

 

 

 

 

 


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