Product Overview
GTF550‑EFI is a 550cc four‑cylinder 2‑stroke electronic fuel injection gasoline engine configured with electromagnetic clutch, designed for civil heavy‑lift UAV and commercial aviation platforms. It is equipped with capacitor discharge ignition module and mature EFI control unit. Compared with mechanical clutch versions, the electromagnetic clutch realizes electronically controlled power connection, bringing more flexible power management for drone flight control. Built‑in generator can continuously supply power for onboard equipment. Our engineering team supports customized modification to adapt diverse aircraft integration demands.
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 | 23.9 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 |
Performance Characteristic
At 5760 RPM, this UAV engine achieves peak thrust of 72.37kg alongside torque output of 46.4 N·M. Thrust and torque rise progressively within 1200‑6000rpm working range. The flat performance curve guarantees stable output for heavy‑payload civil UAV during hover, climb and cruise flight. The electromagnetic clutch allows flight controller to cut or engage power rapidly according to flight logic.
Application Scenarios
This 2‑stroke EFI gasoline engine is suitable for multiple civil‑oriented use cases:
Heavy‑payload commercial UAV platforms
Long endurance industrial inspection drone
Cargo delivery UAV power solution
Large‑scale civil drone power system integration
Custom light aviation power projects
Customized development service is available. Parameters, mounting interfaces and auxiliary structures can be adjusted to match customer’s specific integration requirements.
FAQ
What kind of fuel and lubricant should I prepare for GTF550‑EFI drone gasoline engine?
A: You need to use 95‑grade gasoline mixed with fully synthetic 2‑stroke lubricating oil. The mixing proportion is 35 parts gasoline to 1 part lubricating oil. Mineral 2‑stroke oil is not recommended, it will accelerate component abrasion and reduce engine working lifespan.
What are the advantages of electromagnetic clutch compared with mechanical clutch for a UAV engine?
A: The electromagnetic clutch is controlled electronically by flight system. It can complete clutch engagement and disengagement via signal command. It brings faster response, more flexible power logic, and helps to optimize safety performance for large UAV aircraft. We also support custom tuning for clutch working parameters upon request.
Meta keywords (For website backend copy‑paste):
UAV engine,Drone gasoline engine,2‑stroke EFI UAV engine,heavy‑lift UAV engine,electromagnetic clutch UAV power system,550cc gasoline drone engine,UAV gasoline engine factory supplier,commercial heavy payload drone engine manufacturer,civil industrial UAV power unit
