Product Overview
WGT275 is a 275cc two‑cylinder 2‑stroke water‑cooled drone gasoline engine, developed for medium‑size civil UAV pursuing long‑time stable operation. Different from air‑cooled counterparts, its closed water‑cooled system keeps consistent working temperature under sustained high‑power output. The unit is equipped with carburetor as standard, while hardware is reserved for optional EFI retrofit to cope with high‑altitude and harsh temperature conditions. Outstanding mid‑range torque and low fuel consumption make it a competitive power choice for mapping, inspection and other long‑duration UAV missions. Custom modification for installation dimensions and accessories is available according to project demands.
Main Technical Specifications
| Item | Specifications |
|---|---|
| Displacement | 275cc (137.5cc*2) |
| RPM Operating Range | 800‑7500 rpm |
| Max Output | 21HP (15.4kW) @7000rpm |
| Max Torque | 25.8 N·M @4500rpm |
| Tensile Force | 45.5 kg |
| Fuel Consumption | 420g/kW·h |
| Engine Weight | 14 kg |
| Required Fuel | 95# Gas + Fully synthetic 2T lubricating oil |
| Fuel‑Oil Mix Ratio | Gasoline : Lubricating oil = 35 : 1 |
Performance Characteristic
This water‑cooled drone gasoline engine outputs high torque at mid‑low speed of 4500 rpm, providing strong thrust during UAV take‑off and climbing phases. Thanks to water‑cooled architecture, temperature fluctuation is small even under continuous high‑power work. Fuel consumption is optimized to 420g/kW·h, helping improve whole‑machine flight time. The stock carburetor version performs steadily for most working conditions. After retrofitting EFI system, fuel metering precision is further upgraded for high‑altitude scenarios. It can deliver stable and repeatable power output for long‑hour commercial UAV flight cycles.
Application Scenarios
This water‑cooled 2‑stroke gasoline engine fits multiple civil‑oriented UAV projects:
Medium‑size long‑endurance commercial UAV platforms
Industrial mapping, power‑line inspection and monitoring drones
Medium‑payload civil drone system integration
Light‑duty industrial cargo UAV power systems
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 extra parts are required for running the WGT275 water‑cooled UAV engine?
A: As a water‑cooled drone gasoline engine, it needs supporting cooling system components including radiator, water pump and water pipelines. These water‑cooling accessories need to be properly matched during UAV system design to guarantee cooling efficiency.
What advantages does water‑cooled bring compared with air‑cooled drone engines of similar displacement?
A: Water‑cooled design maintains more stable cylinder temperature during continuous heavy‑load flight. It reduces power drop caused by overheating, delivers more consistent output and is more suitable for UAV missions that require long‑duration full‑power operation.
