Description
DE350 UAV Engine – Carbureted Gasoline Power System for Industrial Drones
The DE350 UAV Engine by DE ENGINE represents the perfect integration of German engineering excellence and Chinese manufacturing power. Originating from advanced German UAV propulsion technology, this 351cc carbureted gasoline engine combines precision, reliability, and cost efficiency—delivering world-class performance tailored for industrial and commercial drones.
Built with aviation-grade materials and CNC-machined components, the DE350 achieves a remarkable power-to-weight ratio, producing up to 18.5 kW of output while maintaining lightweight construction. Its air-cooled, dual-cylinder opposed design ensures smooth and stable operation, even under extended missions and variable environmental conditions.
Designed for long-endurance fixed-wing and VTOL UAVs, the DE350 excels in high-altitude performance up to 6,000 meters, providing consistent power and outstanding fuel efficiency. With its dual electronic ignition system and optimized carburetor design, it offers excellent throttle response, easy maintenance, and proven reliability — making it an ideal power solution for aerial mapping, logistics, agriculture, and surveillance applications.
As part of DE ENGINE’s next-generation UAV propulsion lineup, the DE350 embodies a powerful balance of German technology and Chinese productivity, setting new standards for performance, endurance, and dependability in the global UAV engine market.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DE350 |
| Brand | DE ENGINE |
| Engine Type | 2-stroke, horizontally opposed, air-cooled, carbureted gasoline engine |
| Displacement | 351 cc |
| Bore × Stroke | 66 mm × 41 mm |
| Maximum Power Output | 18.5 kW |
| Rated Speed Range | 2,000 – 6,200 rpm |
| Idle Speed | 2,000 rpm |
| Weight | 12.5 kg (without propeller) |
| Dimensions (L × W × H) | 357 × 295 × 254 mm |
| Cooling System | Air-cooled, cylinder-fin design |
| Ignition System | Dual electronic ignition (redundant configuration) |
| Starting System | Manual or optional electric starter |
| Fuel Type | Unleaded gasoline + 2T synthetic oil |
| Lubrication Ratio | 25:1 (gasoline : 2T oil) |
| Oil Consumption Rate | 0.55 kg/kW·h |
| Recommended Propeller Size | 30×12 inch / 32×10 inch |
| Operating Temperature Range | −20 °C ~ +50 °C |
| Operating Altitude | Up to 6,000 meters |
| Service Life (Initial) | Approx. 100 hours |
| Application | Fixed-wing UAVs, VTOL UAVs, Hybrid Drones |
Key Features
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Carbureted Fuel System:
Uses a high-precision carburetor for consistent air-fuel mixture delivery and smooth throttle response across varying altitudes and load conditions. -
Powerful and Reliable:
Generates up to 18.5 kW of output, providing strong thrust and endurance for medium-to-large UAVs. -
Precision CNC Machined Components:
Each engine part is manufactured with high-tolerance CNC processing to ensure stability, balance, and extended operational lifespan. -
Air-Cooled Dual Cylinder Design:
The opposed-cylinder configuration and efficient air-cooling system maintain engine performance even under continuous operation. -
Lightweight Construction:
Compact size and optimized aluminum alloy structure reduce overall drone weight and improve payload capacity. -
Dual Ignition System:
Redundant ignition ensures stable and secure engine performance — essential for critical missions. -
High Altitude Capability:
Engineered for consistent operation up to 6,000 meters above sea level, ideal for mountain patrol, mapping, and logistics missions. -
Fuel Efficient & Cost Effective:
With low fuel consumption and minimal maintenance needs, the DE350 significantly lowers long-term operational costs.
Applications
The DE350 carbureted UAV engine is suitable for a wide range of professional and industrial UAV platforms, including:
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Fixed-Wing Long-Endurance UAVs – For mapping, surveying, and large-area monitoring missions.
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VTOL Hybrid UAVs – Providing stable cruise power for both vertical takeoff and fixed-wing flight.
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Heavy-Lift Delivery Drones – Ensures consistent thrust for logistics and cargo transport operations.
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Agricultural UAVs – Designed for precision crop spraying and field management.
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Reconnaissance and Surveillance UAVs – Operates reliably under continuous flight conditions.
Advantages of DE ENGINE
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Specialized in UAV Power Systems: DE ENGINE focuses exclusively on industrial-grade drone engines.
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Full CNC Machining: Ensures mechanical precision and dynamic balance.
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Optimized for Endurance & Payload: Perfect for long-range and heavy-load operations.
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Integrated Design: Compatible with DE ENGINE mufflers, propellers, and ignition systems.
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Global Support: Full export documentation, after-sales service, and spare parts availability.
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Trusted Brand: DE ENGINE stands for Durability, Efficiency, and Engineering Excellence.
Packaging & Delivery
Each DE350 engine is shipped as a ready-to-install power unit, including:
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DE350 UAV engine assembly
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Dual ignition system
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Mounting accessories and fuel line kit
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User manual and test report
All units are securely packaged in anti-shock, moisture-proof crates suitable for air and sea transportation.
Why Choose DE350
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Advanced carbureted gasoline technology ensures smooth throttle control and easy maintenance.
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Excellent power-to-weight ratio ideal for endurance-focused UAVs.
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Rigorously tested for stability, vibration resistance, and thermal performance.
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Designed for professional UAV integrators and OEM manufacturers.
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Supported globally through EnginePort.com, the platform for next-generation UAV propulsion systems.















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