Product Overview
GTF800‑ISG is an 820cc four‑cylinder 2‑stroke drone gasoline engine adopting integrated starter‑generator (ISG) technology, specially developed for large civil heavy‑lift UAV applications. The ISG unit realizes electric starting and high‑power onboard power generation within one assembly, greatly simplifying aircraft mechanical and electrical layout. The base version uses carburetor fuel supply, and an EFI system can be retrofitted according to actual project needs. Built‑in high‑capacity generator provides 2000W DC power output to support power‑hungry mission payloads. Our engineering team can provide customized modification to satisfy different aircraft installation and operating‑environment demands.
Main Technical Specifications
| Item | Specifications |
|---|---|
| Displacement | 820cc (205cc*4) |
| RPM Operating Range | 800‑7000 rpm |
| Recommended Propeller | 34×30, 34×29, 34×28 (Two‑blades) |
| Max Power | 65HP (48kW) @6800rpm |
| Starting Voltage | 28.5V |
| Fuel Consumption | 530g/kW.h |
| Dry Engine Weight | 25 kg |
| Generator Output | DC28.5V, 2000W @4500rpm |
| Cylinder Block | Aluminum alloy casting, inner wall electroplated Ni‑SiC |
| Required Fuel | 95# gasoline + Fully synthetic 2‑stroke lubricating oil |
| Fuel‑Oil Mix Ratio | Gasoline : Lubricating oil = 35 : 1 |
Performance Characteristic
This UAV engine features an 800‑7000rpm wide working speed band. It outputs peak power of 65HP at 6800rpm, and delivers stable 2000W DC28.5V electric power at 4500rpm for airborne equipment. The integrated ISG design reduces additional mechanical parts. When retrofitted with EFI system, fuel adaptability at high altitude will be further improved. The robust cylinder assembly ensures stable continuous power output for large heavy‑payload civil UAV during hovering, climbing and cruise flight.
Application Scenarios
This ISG‑integrated 2‑stroke gasoline engine is ideal for various civil‑focused projects:
Large heavy‑payload commercial UAV platforms
Long‑endurance industrial inspection drones
Cargo & logistics delivery UAV power systems
Big‑size civil drone system integration
Custom light aviation power projects
Customized development service is available. We can adjust parameters, mounting interfaces and auxiliary structures according to customer‑specific integration requirements.
FAQ
What are the core advantages of ISG integrated starter‑generator drone gasoline engine?
A: The ISG unit combines starter motor and generator in one assembly. It saves installation space, cuts extra component weight, simplifies wiring harness, and provides high‑power onboard generation. It lowers overall system complexity for large UAV platforms.
When should I retrofit the EFI system for GTF800‑ISG engine?
A: EFI retrofit is recommended if your UAV mainly operates at high altitude, wide temperature‑variation zones or requires better fuel economy. The stock carburetor version is suitable for low‑and‑medium altitude scenarios with advantages of lower cost and easier maintenance.
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