Austro Engine E4
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| Austro Engine E4 (AE 300) | |
|---|---|
| Type | Four-cylinder four-stroke aircraft engine |
| National origin | Austria |
| Manufacturer | Austro Engine |
| First run | 2008 |
| Major applications | Diamond DA42 |
| Number built | > 1,500[1] |
The Austro Engine E4 (marketed as the AE 300) is a liquid-cooled, inline, four-cylinder, four-stroke, aircraft diesel engine.[2][3] The engine is manufactured by Austro Engine, an Austrian-based company and subsidiary of Diamond Aircraft Industries.
Development
[edit | edit source]The engine is based on the Mercedes-Benz OM640 road Diesel engine.[4]
Following Diamond's "General Aviation Single Point of Contact" strategy, Austro Engine started to design a new engine for use on Diamond products in 2005. It received its type certificate in January 2009.[2]
Applications
[edit | edit source]Specifications (E4)
[edit | edit source]Data from Austro Engine and type certificate[1][2][3]
General characteristics
- Type: Four-cylinder, four-stroke diesel aircraft engine
- Bore: 83 mm (3.3 in)
- Stroke: 92 mm (3.6 in)
- Displacement: 1,991 cm3 (121 cu in)
- Length: 738 mm (29 in)
- Width: 855 mm (34 in)
- Height: 574 mm (23 in)
- Dry weight: 186 kg (410 lb)
- Mean time between failures: > 100,000 h
- Time between overhauls: 1,800 h
Components
- Fuel type: Kerosene and diesel (EN 590)
- Cooling system: liquid-cooled
- Reduction gear: Gearbox with 1:1.69 ratio
Performance
- Power output: 168 hp (125 kW) (maximum takeoff and continuous power) at up to 2,300 propeller RPM
- Specific power: 1.38 hp/cu in (62.80 kW/L)
- Fuel consumption: 35 L/h (9.25 US gal/h) at 100% power, and
- 19 L/h (5.02 US gal/h) at 60% power
- Power-to-weight ratio: 0.41 hp/lb (0.67 kW/kg)
- Torque: 512 Nm (maximum)
References
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