Product overview
Anhui Lianghong Technology Co., Ltd’s VF25E is a battery-powered VTOL fixed-wing flight platform for terrain mapping, earthwork surveys, 3D urban modeling and transmission-line or pipeline inspection. Its composite-wing architecture uses vertical lift systems during takeoff and landing, then relies mainly on fixed-wing aerodynamic lift during level cruise. It can take off and land without a runway. The structure includes wings, fuselage, tail and VTOL arms. Payload installation requires secure mounting and proper connections, while the gimbal requires free movement and calibration when necessary.
The VF25E carries a 12-month standard warranty from delivery for defects in materials or workmanship under normal use and in accordance with the official operator’s manual. Coverage includes the main airframe, factory-installed propulsion motors, ESCs, flight controller and servos. Batteries must cool to ambient temperature before charging and require approximately 3.8 volts per cell for storage. The aircraft and components require cool, dry storage, ideally between 5°C and 25°C (41°F to 77°F), with relative humidity below 60%. Routine maintenance is scheduled weekly or at 50 flight hours; comprehensive inspection is recommended annually or at 500 flight hours.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Anhui Lianghong Technology Co., Ltd VF25E Electric Vertical Takeoff And Landing Fixed-wing UAV |
| Platform and power | Battery-powered electric VTOL composite-wing flight platform combining multirotor and fixed-wing flight. |
| Lift architecture | Vertical lift systems support takeoff and landing; fixed-wing aerodynamic lift provides the main lift during level cruise.During takeoff, landing and level flight. |
| Runway requirement | Vertical takeoff and landing without a runway.During takeoff and landing. |
| Physical structure | Airframe includes wings, fuselage, tail and VTOL arms. |
| Mapping applications | Large-scale terrain mapping, earthwork surveying and 3D urban modeling. |
| Infrastructure inspection applications | Automated inspection of long-distance transmission lines and oil/gas pipelines. |
| Warranty and covered equipment | 12-month standard warranty from delivery covering repair or replacement for defects in materials or workmanship. Covered equipment includes the main airframe, factory-installed propulsion motors, electronic speed controllers (ESCs), flight controller and servos.Under normal use and in accordance with the official operator's manual. |
| Payload and gimbal checks | Secure payload mounting and proper connections are required; check the gimbal for free movement and calibrate if necessary. |
| Battery handling | Allow the battery to cool to ambient temperature before charging. Never leave a depleted battery unattended for long periods; recharge to storage voltage, typically 3.8V per cell, if it will not be used soon.After flight, before charging; when the battery will not be used soon. |
| Storage temperature | Cool, dry storage with an ideal ambient temperature between 5°C and 25°C (41°F to 77°F). Avoid extreme temperatures; do not store in direct sunlight or in a vehicle.During storage of the UAV and its components. |
| Storage humidity | Maintain relative humidity below 60% to prevent condensation and corrosion on electronic circuits and metal parts.During storage. |
| Battery storage charge | Charge or discharge batteries to approximately 3.8 volts per cell. Never store batteries at full charge (4.2V/cell) or completely depleted (below 3.0V/cell) for extended periods.During battery storage; full-charge and depletion restrictions apply to extended periods. |
| GPS and flight-control checks | Ensure a strong GPS signal with more than 8 satellites, verify the flight mode and check for pre-flight error messages on the Ground Control Station (GCS).When troubleshooting failure to arm motors. |
| Routine maintenance interval | Weekly or 50-flight-hour maintenance includes detailed structural inspection, electrical connector checks and checking for and installing available flight-controller, ground-control-station and payload updates. |
| Comprehensive maintenance interval | Annual or 500-flight-hour comprehensive inspection at an authorized service center is recommended, regardless of apparent condition. |
| Long-term preservation | Clean the UAV, set batteries to 3.8V/cell, remove and store batteries separately in a fire-proof bag, and place the UAV and components in the original factory transport case under the recommended environmental conditions.For storage exceeding 3 months. |
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