120cc four-cylinder two-stroke gasoline UAV engine delivering unmatched performance, precision, and reliability. Launched in May 2020, it stands as DLE’s smallest-displacement four-cylinder powerhouse, engineered specifically for professional UAVs, fixed-wing aircraft, and large-scale aeromodel applications that demand high output with smooth stability.
With an impressive 12 horsepower at 7500 RPM, the DLE120T4 ensures powerful, efficient, and vibration-balanced performance. The engine’s four-cylinder configuration provides superior throttle response, enhanced cooling, and optimized torque delivery — making it ideal for heavy-lift drones, long-endurance flight platforms, and hybrid propulsion UAVs.
Built using precision-machined aluminum components and advanced internal balancing, the DLE120T4 guarantees durability under extended operational conditions. It uses clean 92# or higher unleaded gasoline at a 30:1 fuel-to-oil ratio for maximum efficiency and reduced carbon buildup.
✅ Key Features
High Power Output: Generates up to 12 HP at 7500 RPM for superior thrust and smooth flight control.
Four-Cylinder Configuration: Delivers excellent balance, reduced vibration, and stable performance at all speeds.
Altitude Performance: Maintains 26.5 kg thrust at 100m altitude and 23.5 kg at 1800m, ensuring consistent output.
Fuel Efficiency: Optimized for 92+ octane unleaded gasoline; consistent combustion for longer missions.
Precision Construction: CNC-machined aluminum design enhances thermal efficiency and engine longevity.
Reliable Ignition System: Compatible with DLE CM6 spark plugs and supports 4.8V–12V ignition voltage.
Propeller Compatibility: Recommended propellers include 27×10, 26×12, and 28×10, ensuring flexibility across setups.
Compact Yet Powerful: Despite its high output, the main engine weighs just 920g, with efficient exhaust and ignition system integration.
⚙️ Technical Specifications
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| Model | 120cc four-cylinder two-stroke gasoline UAV engine delivering unmatched performance, precision, and reliability. Launched in May 2020, it stands as DLE’s smallest-displacement four-cylinder powerhouse, engineered specifically for professional UAVs, fixed-wing aircraft, and large-scale aeromodel applications that demand high output with smooth stability. With an impressive 12 horsepower at 7500 RPM, the DLE120T4 ensures powerful, efficient, and vibration-balanced performance. The engine’s four-cylinder configuration provides superior throttle response, enhanced cooling, and optimized torque delivery — making it ideal for heavy-lift drones, long-endurance flight platforms, and hybrid propulsion UAVs. Built using precision-machined aluminum components and advanced internal balancing, the DLE120T4 guarantees durability under extended operational conditions. It uses clean 92# or higher unleaded gasoline at a 30:1 fuel-to-oil ratio for maximum efficiency and reduced carbon buildup. ✅ Key Features
⚙️ Technical Specifications
⚙️ Performance & Design Advantages
⚠️ Operational Notes
Packaging & Logistics
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| Four-Cylinder Two-Stroke Gasoline Engine | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement | 120 cc | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Power Output | 12 HP @ 7500 RPM | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Idle Speed | 1200 RPM | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Static Thrust (100m Altitude) | 26.5 kgf | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Static Thrust (1800m Altitude) | 23.5 kgf | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Recommended Propellers | 27×10, 26×12, 28×10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Spark Plug Type | DLE CM6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cylinder Bore × Stroke | 36mm × 30mm | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Compression Ratio | 7.1 : 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fuel Type | 92# Unleaded Gasoline (or higher) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fuel-to-Oil Ratio | 30:1 (Do not mix brands) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Main Engine Weight | 920 g | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Exhaust Weight | 500 g | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ignition Weight | 140 g | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ignition Voltage | 4.8V–12V DC | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cooling System | Air-Cooled | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Starting Method | Electronic ignition (manual/electric compatible) |
⚙️ Performance & Design Advantages
Perfect balance between thrust and fuel economy for endurance missions.
Four-cylinder layout ensures lower vibration and smoother throttle response than twin-cylinder engines.
Wide altitude adaptability for UAV operation in diverse terrains.
Durable materials and superior machining guarantee consistent performance under extended load.
⚠️ Operational Notes
Use only one brand/type of lubricating oil; mixing brands may cause carburetor blockage.
Maintain proper 30:1 fuel-oil ratio using high-quality 2T synthetic oil.
Conduct pre-flight inspection for spark plug connection and fuel line integrity.
Follow regular maintenance intervals for peak performance and longevity.
Packaging & Logistics
| Item | Details |
|---|---|
| Engine Weight | 920 g (main engine) |
| Total Weight (with exhaust & ignition) | ~1.56 kg |
| Production Lead Time | 7–10 working days |
| Shipping Duration | 7–14 additional days |
| Order Type | Made-to-Order (non-refundable once confirmed) |
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