Product Overview
GTT275 is a 275cc two‑cylinder 2‑stroke drone gasoline engine oriented toward lightweight medium‑endurance civil UAV applications. It uses proven carburetor fuel system out‑of‑the‑box, with mechanical structure reserved for optional EFI retrofit. The unit comes with capacitor discharge ignition and an integrated generator module. The provided thrust‑torque curve offers intuitive reference for propeller matching and UAV power system simulation. Compact weight and stable output make it a cost‑effective power option for multiple civil drone projects. Our engineering team supports customized development in line with customer requirements.
Main Technical Specifications
| Item | Specifications |
|---|---|
| Displacement | 275cc (137.5cc*2) |
| RPM Operating Range | 1000‑7500 rpm |
| Recommended Propeller | 22×24, 24×22, 26×18, 34×12 (Two‑blades) |
| Max Power | 19.7HP (14.6kW) @7500rpm |
| Generator Output | DC14V, 350W @5400rpm |
| Ignition System | Capacitor discharge ignition |
| Fuel Consumption | 530g/kW.h |
| Starting Mode & Voltage | Electric start, 22.2V (6S) |
| Cylinder Block | Aluminum alloy casting, inner wall electroplated Ni‑SiC |
| Dry Engine Weight | 10.5 kg |
| Max Tensile Force | 45.5 kg |
| Required Fuel | 95# gasoline + Fully synthetic 2‑stroke lubricating oil |
| Fuel‑Oil Mix Ratio | Gasoline : Lubricating oil = 35 : 1 |
Performance Characteristic
This drone gasoline engine generates progressive thrust and torque output within 1000‑7500 rpm working scope, achieving maximum tensile force of 45.5 kg. The capacitor discharge ignition maintains stable combustion during variable flight conditions. When running at 5400 rpm, the integrated generator supplies constant DC14V 350W power for onboard mission equipment. The stock carburetor setup works reliably under normal‑altitude conditions. Retrofitting EFI will further enhance fuel atomization and high‑altitude adaptability. The wear‑resistant cylinder assembly ensures steady performance through repeated long‑hour UAV operations.
Application Scenarios
This lightweight 2‑stroke gasoline engine fits a wide range of civil‑focused UAV projects:
Light‑weight medium‑endurance commercial UAV platforms
Industrial mapping, inspection and surveillance drones
Light‑duty agricultural UAV power systems
Small‑to‑medium 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
Which propeller should I select for the GTT275 UAV engine?
A: Valid two‑blade propeller options are 22×24, 24×22, 26×18 and 34×12. Final selection should consider your UAV take‑off weight, target cruise speed and typical working RPM to reach optimal propulsion efficiency.
What should I pay attention to for daily maintenance of this drone gasoline engine?
A: Always use 95‑grade gasoline mixed with fully‑synthetic 2‑stroke oil at 35:1 ratio. Regularly inspect spark plug, air filter and cylinder condition. Avoid continuous long‑time running near maximum RPM to extend engine service life.
