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The Hirth F-40 is a German aircraft engine, that was designed and produced by Hirth of Benningen for use in ultralight aircraft.[1]

Hirth F-40
Type	Aircraft engine
National origin	Germany
Manufacturer	Hirth

By March 2018, the engine was no longer advertised on the company website and seems to be out of production.[2]

Design and development

The Hirth F-40 is a four-cylinder, two-stroke, 1,300 cc (79.3 cu in) displacement, liquid-cooled, gasoline engine design, with a helical gear mechanical gearbox reduction drive. It produces 120 hp (89 kW) at 4800 rpm.[1]

Specifications (F-40)

Data from Tacke[1]

General characteristics

• Type: Four cylinder, two stroke aircraft engine
• Bore: 76 mm (3.0 in)
• Stroke: 69 mm (2.7 in)
• Displacement: 1,300 cc (79.3 cu in)
• Dry weight: 69 kg (152.1 lb)

Components

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

Performance

• Power output: 120 hp (89 kW)

See also

Related lists

• List of aircraft engines

References

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