Description

The DE120 is a lightweight yet powerful 120cc twin-cylinder 2-stroke gasoline engine designed for medium-class UAVs. Delivering up to 26.5 kg thrust at 100 m altitude and excellent high-altitude capability of 23.5 kg thrust at 1800 m, the DE120 is optimized for professional applications such as logistics delivery, aerial mapping, inspection, and surveillance.

With a weight of only 3.05 kg, it supports UAVs up to 60 kg MTOW, offering one of the best thrust-to-weight ratios in the 120cc category. Its three-bearing crankshaft ensures smooth power delivery and extended durability, making it a top choice for drone manufacturers worldwide.

Core Advantages

Twin cylinders — Horizontally opposed layout reduces vibration, improves flight stability and extends engine life.
Air-cooled — Lightweight, maintenance-free cooling, suitable for long-endurance operations.
Two-stroke power — Higher power density and quick throttle response for demanding missions.
Automatic CDI ignition — Smart ignition timing ensures reliable startup and stable combustion.
Mixture lubrication — Simpler structure, higher reliability, lower maintenance requirements.
Push & pull compatible — Fits widely-used fixed-wing and hybrid VTOL UAV configurations.

Technical Specifications — DE120

Brand	DE Engine
Model	DE120
Engine Type	Twin-cylinder, 2-stroke, air-cooled
Displacement	120 cc
Bore × Stroke	45 mm × 35 mm
Power Output	11.22 hp / 8.25 kW
Static Thrust @100 m	26.5 kg
Static Thrust @1800 m	23.5 kg
MTOW (Max Take-off Weight)	60 kg
Engine Weight	3.05 kg
RPM Range	1300–7500 rpm
Recommended Propellers	26×10 / 26×12 / 27×10 / 28×10
Crankshaft	3 ball bearings
Fuel Consumption	4.5 L/h
Lubrication Ratio	25:1 to 30:1
Ignition System	Automatic CDI ignition
Ignition Voltage	6.0–8.4 V DC
Dimensions (L × W × H)	285 × 220 × 222 mm