The MTH R 422-CG is an Austrian aircraft engine, designed and produced by MTH Engines of Mattsee for use in ultralight aircraft.[1]

MTH R 422-CG
Type Aircraft engine
National origin Austria
Manufacturer MTH Engines

Design and development

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The engine is a twin-cylinder two-stroke, in-line, 1,339 cc (81.7 cu in) displacement, liquid-cooled, gasoline engine design, with a toothed mechanical gearbox reduction drive with a reduction ratio of 3.0:1. It employs dual electronic ignition systems and produces 105 hp (78 kW) at 6500 rpm, with a compression ratio of 12:1.[1]

Specifications (R 422-CG)

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Data from Tacke[1]

General characteristics

  • Type: Twin cylinder, two stroke aircraft engine
  • Bore: 99 mm (3.9 in)
  • Stroke: 87 mm (3.4 in)
  • Displacement: 1,339 cc (81.7 cu in)
  • Dry weight: 42 kg (92.6 lb)

Components

  • Fuel type: gasoline
  • Cooling system: liquid
  • Reduction gear: toothed mechanical gearbox

Performance

  • Power output: 105 hp (78 kW)

See also

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Related lists

References

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  1. ^ a b c Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 260-261. Flying Pages Europe SARL, 2015. ISSN 1368-485X
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