Lycoming DEL-120
The DEL-120 is an aircraft diesel engine with propeller speed reduction unit produced by Lycoming Engines. Using automotive technology and initially powering unmanned aircraft.[1] DEL-120 is a non-certified engine and is meant for military use only, there is no civil application of this engine.
| DEL-120 | |
|---|---|
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| Lycoming DEL-120 on MQ-1C Gray Eagle | |
| Type | Military Piston Diesel Aero-engine |
| National origin | United States |
| Manufacturer | Lycoming Engines |
| Major applications | MQ-1C Gray Eagle |
| Produced | 2013-present |
Applications
- General Atomics Improved MQ-1C Gray Eagle
Specifications
Data from Lycoming[2]
General characteristics
- Type: four stroke, four cylinder compression-ignition
- Bore: 3.2 in (82 mm)
- Stroke: 3.6 in (90.4 mm)
- Displacement: 1,910 cm3 (117 cu in)
- Dry weight: 360 lb (160 kg) dry
- Designer: FIAT via DieselJet[3]
Components
- Turbocharger: air-to-air intercooler
- Fuel type: JET A/A1, JP-8, F-24
- Cooling system: liquid, with expansion tank
- Reduction gear: 0.553
- FADEC
Performance
- Power output: Take-Off: 205 hp (153 kW), Max Continuous (90%): 180 hp (134 kW), both at 2101 propeller RPM
- Specific power: 1.206 hp/cu in (54.9 kW/L)
- Compression ratio: 16.5:1
- Fuel consumption: 64.8 lb/h (29.4 kg/h) at Max Continuous
- Specific fuel consumption: 0.36 lb/hp/h (220 g/kW/h) at Max Continuous, 0.345 lb/hp/h (210 g/kW/h) in Cruise (60% PLA, 1770 propeller RPM)
- Power-to-weight ratio: 0.57 hp/lb (0.94 kW/kg)
References
- Paul Bertorelli (March 25, 2014). "Lycoming Diesel Details". AVweb.
- "DEL-120". Lycoming Engines.
- "Lycoming's Diesel". Aviation Consumer. February 2015.
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