Product Overview
GTE550‑EFI is a high‑performance 550cc 2‑stroke electronic fuel injection gasoline engine with mechanical clutch configuration. Specially engineered for civil large‑payload UAV and aviation platforms. It adopts capacitor discharge ignition and mature EFI control unit, featuring low fuel consumption, strong thrust output and dependable continuous operation capability. This power unit comes with integrated generator function to power aircraft onboard equipment. The mechanical clutch structure avoids propeller shock load at starting phase. Our factory accepts custom modification for different aircraft integration projects.
Main Technical Specifications
| Item | Specifications |
|---|---|
| Displacement | 550cc (137.5cc*4) |
| RPM Operating Range | 1200‑7000 rpm |
| Recommended Propeller | 30×25, 32×20, 33×20 (Two‑blades) |
| Max Power | 50HP (37kW) @7300rpm |
| Generator Output | DC28.5V, 1000W @5500rpm |
| Ignition System | Capacitor discharge ignition |
| Fuel Consumption | 480g/kW.h |
| Starting Mode & Voltage | Electric start, 22.2V (6S) |
| Cylinder Block | Aluminum alloy casting, inner wall electroplated Ni‑SiC |
| Dry Engine Weight | 21.2 kg |
| Max Tensile Thrust | 72.4 kg @5760 rpm |
| Required Fuel | 95# gasoline + Fully synthetic 2‑stroke lubricating oil |
| Fuel‑Oil Mix Ratio | Gasoline : Lubricating oil = 35 : 1 |
| Clutch Engagement Speed | 3000 rpm |
Performance Characteristic
At 5760 RPM, the engine reaches peak thrust of 72.37kg with torque output of 46.4 N·M. Thrust and torque rise steadily along RPM increase within 1200‑6000rpm working zone. The broad performance band enables stable hover, climbing and cruise flight for heavy‑payload civil UAV platforms.
Application Scenarios
This 2‑stroke EFI gasoline engine fits multiple civil aviation usages:
Large payload civil UAV platforms
Long endurance commercial drone projects
Industrial inspection UAV power system
Cargo transport drone power unit
Custom light aviation platform power solution
Customized development service is available. We can adjust parameters and structure to satisfy customer’s specific integration requirements.
FAQ
What fuel and oil should I use for the GTE550‑EFI engine?
A: Please use 95‑grade gasoline mixed with fully synthetic 2‑stroke lubricating oil. The mixing ratio is 35:1 (gasoline to lubricating oil). Do not use ordinary mineral‑based two‑stroke oil, it will accelerate internal component wear and shorten engine lifespan.
Can you provide custom modification for this drone gasoline engine?
A: Yes, as a professional UAV engine factory supplier, we support customized development. We can adjust parameters, interfaces and partial structures according to your aircraft frame, payload requirement and installation space. Please send your detailed technical demands for our engineering evaluation.
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