DE120 · 120cc Twin-Cylinder Air-Cooled Gasoline Engine for Industrial UAVs
The DE120 is a lightweight 120 cc twin-cylinder two-stroke gasoline engine optimized for medium-size VTOL and fixed-wing UAV platforms. It offers an excellent balance between thrust, fuel consumption and installed weight.
Based on extensive field use, the DE120 is tuned for long-endurance cruise on aviation gasoline with 2-stroke oil mix, providing stable power and quick throttle response.
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Designed for industrial UAV applications where reliability, endurance and predictable fuel consumption are more important than extreme peak power.
- Opposed twin layout for reduced vibration and stable flight attitude.
- Optimized for aviation gasoline with 2T oil mix.
- Strong static thrust and reliable high-altitude performance.
- Suitable for both tractor and pusher installations.
Typical UAV applications
DE120 is commonly integrated as the main propulsion system for:
- Medium fixed-wing mapping UAVs with 3–5 m wingspan
- Hybrid VTOL drones where DE120 handles cruise
- Logistics and parcel delivery UAVs in the 30–60 kg class
- Inspection platforms that need 3–5 hours endurance with reserve
Key specifications
| Brand / Model | DE ENGINE · DE120 |
|---|---|
| Engine type | Horizontally-opposed twin-cylinder, 2-stroke, air-cooled |
| Displacement | 120 cc |
| Power output | Approx. 11.2 hp / 8.25 kW |
| Static thrust @ sea level | Up to approx. 26.5 kg |
| Static thrust @ 1800 m | Approx. 23.5 kg (reference) |
| Speed range | 1,300–7,500 rpm |
| Recommended MTOW | Up to ~60 kg (depending on airframe) |
| Recommended propellers | 26×10 / 26×12 / 27×10 / 28×10 |
| Fuel | Aviation gasoline (or 90+ RON) + 2T synthetic oil |
| Lubrication ratio | Typically 25:1–30:1 |
| Ignition system | Electronic CDI ignition |