Walter Scolar

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Type	Radial aero engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines
First run	1936

The Walter Scolar was a Czechoslovakian nine-cylinder, aircooled, radial engine for powering light aircraft that first ran in 1936. With a displacement of 8 litres (490 cu in), it produced 132 kW (180 hp) at 2,500 rpm.^[1]

Applications

Beneš-Mráz Beta-Scolar

Engines on display

Preserved examples of the Walter Skolar engine are on display at the following museums:

Muzeum Letectva, Košice
Prague Aviation Museum, Kbely

Specifications (Scolar)

Data from Kosice Air Museum^[2]

General characteristics

Type: 9-cylinder radial piston engine
Bore: 105 mm (4.13 in)
Stroke: 100 mm (3.94 in)
Displacement: 7.8 L (488 cu in)
Dry weight: 155 kg (342 lb)

Components

Valvetrain: One intake and one exhaust valve per cylinder
Fuel system: Carburettor
Fuel type: Petrol
Cooling system: Air-cooled

Performance

Power output: 132 kW (180 hp) at 2,500 rpm
Compression ratio: 5.4:1
Power-to-weight ratio: 0.85 kW/kg (0.52 hp/lb)

References

Wikimedia Commons has media related to Walter Scolar.

Notes

↑ Gunston 1989, p. 174.
↑ Kosice Air Museum - Walter Scolar Retrieved: 18 October 2010

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

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