The YH-S16 Long Endurance Inspection Drone offered by YIHANG, a professional manufacturer from China, is a VTOL fixed-wing UAV platform developed for missions that require extended flight time, accurate positioning and flexible deployment. Its vertical takeoff and landing capability allows operation from suitable field locations without a conventional runway, while the fixed-wing configuration is used for efficient cruise flight. The aircraft combines long-endurance flight with RTK positioning and a modular payload interface, providing a platform for professional inspection, surveying and data-collection equipment.
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Item |
Specification |
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Product Name |
YH-S16 Long-Endurance Inspection Drone |
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Length |
1.6m |
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Wingspan |
3.0m |
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Max Takeoff Weight |
18kg |
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Endurance |
3.5 hours |
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Cruising Speed |
70–115 km/h |
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Communication Radius |
80km |
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Wind Resistance |
Level 7 |
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Service Ceiling |
5500m |
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Operating Temp |
-20°C to 50°C |
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Horizontal Accuracy |
1cm + 1ppm (RTK) |
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Vertical Accuracy |
2cm |
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Transport Case |
1.24 × 0.6 × 0.68m |
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Payload Options |
EO/IR gimbal, LiDAR, mapping camera, third-party payloads |
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Custom Service |
Payload integration, OEM branding, flight control tuning |


EO Pod
LiDAR
Mapping cameras
Third-part payload
The YH-S16 Long Endurance Inspection Drone provides up to 3.5 hours of endurance under the stated cruise conditions. The extended flight time helps reduce the number of takeoff and landing cycles required for long inspection routes. Actual endurance depends on payload, flight speed, weather, altitude and mission configuration.
The aircraft uses vertical takeoff and landing rather than a conventional runway or fixed-wing launch system. This allows deployment from suitable roadsides, field sites, remote facilities and other locations where runway infrastructure is unavailable.
The YH-S16 uses RTK positioning with a stated horizontal accuracy of 1cm + 1ppm and vertical accuracy of 2cm. This positioning capability supports aerial data collection where accurate aircraft location is important for surveying, mapping and asset inspection.
The aircraft supports different mission payloads, including EO/IR gimbals, LiDAR, mapping cameras and selected third-party payloads. This modular configuration allows the same airframe to be configured for different data-collection requirements without changing the core aircraft platform.

An EO/IR payload can provide visible-light and thermal imaging for remote observation, asset inspection and condition assessment. The available configuration can include 30× optical zoom and thermal imaging, subject to the selected gimbal specification.
LiDAR payloads can be used for 3D terrain modeling, point-cloud data collection and vegetation-related surveying. Actual data quality and coverage depend on the LiDAR system, flight parameters and survey environment.
A high-resolution mapping camera can support orthophoto generation, aerial surveying, 3D reconstruction and measurement work according to the selected camera and mission settings.
YIHANG can evaluate selected third-party payloads according to their weight, dimensions, mounting requirements, power consumption and interface configuration.
The long-endurance configuration can support extended routes along transmission corridors, while compatible imaging payloads can collect visual or thermal data for asset condition assessment and vegetation monitoring.
The YH-S16 Long Endurance Inspection Drone can be configured for inspection routes covering pipelines and other extended infrastructure. Its VTOL deployment capability is useful where inspection sites are located away from conventional launch facilities.
RTK positioning combined with LiDAR or mapping cameras supports aerial data collection for topographic surveys, terrain modeling, orthophoto production and other mapping tasks.
The combination of long endurance, VTOL deployment and modular sensors makes the platform suitable for data collection in mountainous, remote or infrastructure-limited areas, subject to mission conditions and local UAV regulations.
The YH-S16 incorporates several flight-control and operational safety functions for extended missions.
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System |
Function |
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Redundant flight controller |
Dual GNSS/IMU fusion, operates in GPS-denied environments |
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Autonomous takeoff & landing |
Reduces pilot error, enables single-operator deployment |
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Intelligent battery monitoring |
Real-time voltage/current alerts, auto-return on low battery |
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Backup data link |
Maintains connection even in interference zones |
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3D ground station |
Intuitive waypoint planning and emergency return |
The YH-S16 supports manual flight, waypoint-based route flight and point-and-fly control. The flight-control system provides real-time telemetry feedback and can support autonomous takeoff and landing functions according to the configured system.
For planned inspection and surveying missions, waypoint routes can be prepared in advance to provide repeatable flight paths and consistent data-collection procedures.
The YH-S16 Long Endurance Inspection Drone has a 3.0m wingspan and 1.6m fuselage length. A dedicated transport case measuring 1.24 × 0.60 × 0.68m is available for equipment transport and field deployment.
The aircraft is specified for operation from -20°C to 50°C, with Level 7 wind resistance and a 5500m service ceiling. Actual operating limits depend on weather, altitude, aircraft configuration, payload and mission conditions.
YIHANG supports selected customization projects involving payload integration, sensor configuration, flight-control tuning and OEM branding.
Payload integration can be evaluated according to the selected sensor's mechanical mounting, weight, power consumption, communication interface and aircraft balance requirements. This allows the YH-S16 to be configured for different inspection, surveying and data-collection projects.







The YH-S16 provides a stated endurance of up to 3.5 hours. Actual flight time varies with payload, altitude, cruising speed, weather and mission configuration.
The platform supports EO/IR gimbals, LiDAR, mapping cameras and selected third-party payloads. Payload compatibility should be evaluated according to weight, dimensions, power and interface requirements.
The stated horizontal positioning accuracy is 1cm + 1ppm, with a vertical accuracy of 2cm under the specified RTK configuration and operating conditions.
The listed communication radius is up to 80km. Actual communication performance depends on terrain, interference, communication equipment and operating conditions.
Yes. The VTOL configuration allows vertical takeoff and landing from suitable operating areas without a conventional runway or fixed-wing launch system.
Yes. YIHANG supports selected payload integration and OEM projects, including sensor integration, flight-control tuning and OEM branding. Compatibility is evaluated based on the requirements of the selected payload.