Product Overview
The LF550 550cc UAV gasoline engine is a dedicated civilian heavy-load internal combustion power assembly independently developed for large-scale commercial unmanned aerial vehicles. Different from small-displacement single-cylinder drone gasoline engines and low-power carburetor power units, this UAV gasoline engine adopts horizontally opposed twin-cylinder two-stroke architecture, full electronic fuel injection and built-in brushless self-start motor, exclusively optimized for long-duration heavy-payload civilian aerial industrial missions.
All core structural assemblies including forged high-strength crankshaft, aviation-grade alloy cylinder liner, full-function digital ECU and dual redundant ignition coil adopt lightweight high-temperature resistant raw materials. Every finished LF550 drone gasoline engine undergoes an 80-hour full-power bench aging test before factory delivery to screen assembly defects and unstable performance. As our flagship large-displacement power model, the 550cc specification balances powerful sustained thrust and controllable overall body weight, solving core pain points of limited flight duration and insufficient payload capacity of pure electric UAV power systems. Global industrial operators widely deploy this UAV gasoline engine for large-area farm pest control, mountain remote goods logistics transportation, ultra-wide-range topographic survey and long-distance civil infrastructure safety inspection tasks.
Complete Official Technical Parameter Table
| Parameter Classification | Official Standard Technical Index |
|---|---|
| Complete Official Model Name | LF550 550cc Twin-Cylinder EFI Self-Start UAV Gasoline Engine |
| Total Displacement | 550cc Horizontally Opposed Twin-Cylinder Two-Stroke |
| Cooling Form | Forced Air-Cooled with Multi-Layer Reinforced Heat Dissipation Fins |
| Maximum Rated Continuous Power | 36HP Stable Long-Duration Output |
| Normal Continuous Working Speed Range | 1000rpm – 8300rpm |
| Standard Fuel-Oil Lubrication Mix Ratio | 30:1 (95# Unleaded Gasoline + Two-Stroke Fully Synthetic Lubricant) |
| Ignition Matching Configuration | Dual-Sensor Redundant CDI Electronic Ignition System |
| Startup Mode | Integrated Brushless Electric Self-Start (No Manual Pull Starter) |
| Maximum Adaptable Flight Altitude | ≤4500 Meters Above Sea Level |
| Allowable Ambient Operating Temperature | -30°C ~ +58°C |
| Primary Engine Housing Raw Material | High-Strength Aviation Die-Cast Aluminum Alloy |
| Factory Matched Standard Spark Plug | NGK CM7 Iridium High-Temperature Spark Plug |
| Applicable Propeller Size Range | 2210 inch ~ 5024 inch (Customized per UAV payload weight) |
| Global Factory Standard Warranty Period | 12 Months Full-Coverage Global After-Sales Warranty |
| Sample & Bulk Purchase Regulation | 1 Single Unit Supported for Independent Sample Performance Evaluation |
Independent R&D Core Component Introduction
Mirror ultra-fine CNC honed cylinder inner wall: Minimizes piston reciprocating friction loss, cuts mechanical running vibration and noise, elevates energy conversion efficiency of this UAV gasoline engine.
Miniaturized combined EFI & self-start integrated module: Compact integrated structure saves UAV internal installation cavity space, supports real-time CAN bus data transmission and seamless signal matching with mainstream industrial-grade flight control hardware.
Three-layer anti-dust, waterproof and high-temperature anti-corrosion surface coating: All exposed metal shell and circuit components are covered with heat-resistant rust-proof paint, adapting to dusty farmland operation sites, humid coastal zones and frigid alpine low-temperature working environments.
Optimized stepped layered fin heat dissipation architecture: Expands effective heat exchange area without excessive overall weight increase, completely avoids thermal power attenuation during all-day continuous full-load flight of the UAV engine.
Fully modular split assembly layout: Self-start motor, exhaust manifold, ignition unit and fuel supply assembly are independently detachable. Operators can finish daily routine inspection and wearing-part replacement without special professional disassembly tools.
Civil Commercial Application Scenarios
Large-Scale Commercial Agricultural Operation UAVs: High-volume liquid pesticide spraying, full-orchard uniform foliar fertilization, large-range forest pest prevention and real-time farmland crop growth health monitoring.
Heavy-Lift VTOL Cargo Delivery Drones: Remote mountainous area bulk daily material transportation, regional heavy lightweight goods distribution and offshore island daily supply logistics transport.
Aerial Survey & Mapping Fixed-Wing UAVs: Ultra-large-area topographic mapping, national land resource general census, wide-range 3D aerial photography modeling and cross-basin river terrain detection.
Large Civil Infrastructure Inspection Platforms: Cross-country long-distance high-voltage power line patrol, full wind turbine blade safety inspection, trans-regional oil & gas pipeline monitoring and large-span bridge structural stability scanning.
Ecological Environment Monitoring UAV Platform: Multi-component atmospheric pollutant sampling, wide river surface water quality aerial inspection, large forest wildfire early warning patrol and natural vegetation resource tracking statistics.
FAQ
FAQ 1: What core competitive advantages does this 550cc EFI self-start UAV gasoline engine hold compared with small-displacement drone gasoline engines and all-electric drone motors?
Pure electric drone motors rely entirely on lithium battery power supply, with continuous flight time generally limited within 40 minutes; heavy battery packs drastically restrict drone maximum payload capacity, and power output drops sharply under low-temperature or high-altitude thin-air conditions. Small-displacement drone gasoline engines below 300cc cannot generate sufficient torque to support heavy payloads exceeding 20kg, lacking stable power output for large spraying tanks and industrial-grade detection sensors.
Our LF550 550cc UAV gasoline engine adopts high-energy-density gasoline fuel to deliver 7+ hours uninterrupted industrial flight capability, with strong torque to carry over 32kg professional working equipment. The built-in electric self-start removes cumbersome manual ground startup work, and closed-loop EFI technology guarantees consistent power output under complex plateau and cold environments. For long-term commercial UAV fleet operation, its daily maintenance only requires regular replacement of two-stroke lubricating oil and spark plugs, effectively reducing comprehensive operating costs for global industrial UAV operators.
FAQ 2: Can we customize power output curves, self-start matching structure and installation interfaces of this 550cc UAV gasoline engine for mass bulk orders?
Comprehensive personalized customization service is fully supported for bulk purchase orders exceeding 20 units. Our professional aviation power R&D engineering team can adjust engine power curve parameters, propeller mounting hole dimensions, exhaust pipe length and self-start motor output power according to your self-developed drone frame structural drawings.
We can also rewrite the built-in EFI control program to match exclusive independently developed flight controllers, realizing customized real-time data feedback and adjustable safety protection threshold settings. For clients with special ultra-highland or extreme cold region long-hour continuous operation demands, we can upgrade the thickness and layout of heat dissipation fins and optimize fuel injection calibration parameters to boost extreme-environment operational stability of the drone gasoline engine. You only need to submit UAV dimension drawings and detailed mission parameter requirements to our global sales team, and we will deliver a targeted LF550 UAV gasoline engine matching solution within 2 working days.
