Inspection drones & flight software
Radiometric thermal UAV platforms engineered for energy assets — solar plants, wind turbines and transmission corridors — with automated mission planning and AI-assisted defect classification.
Radiometric thermal plus 48 MP visible, the standard configuration for solar and building inspection.
Adds a 905 nm LiDAR module and survey-grade PPK for terrain models and as-built documentation.
Mission planning, automated defect classification and report generation — licensed per site or per fleet.
AX-T4 series specifications
| Parameter | AX-T4 | AX-T4M |
|---|---|---|
| Airframe | Quadcopter, folding carbon composite | Quadcopter, folding carbon composite |
| Wheelbase | 650 mm | |
| Take-off weight | 3.8 kg (dual battery) | 4.3 kg (dual battery + LiDAR) |
| Flight endurance | 45 min (no payload) · 38 min (dual sensor) | 40 min (LiDAR mission profile) |
| Max. cruise speed | 21 m/s (75 km/h) | |
| Wind resistance | 12 m/s (43 km/h) | |
| Service ceiling | 5,000 m above sea level | |
| Thermal sensor | 640 × 512 px, radiometric, −20 to 150 °C / 100 to 550 °C dual range, ±2 °C accuracy | Same |
| Visible sensor | 48 MP, 1/2" CMOS, 4× digital zoom | Same + LiDAR 905 nm, 240,000 pts/s |
| Positioning | RTK GPS + GLONASS + Galileo, ±1 cm + 1 ppm horizontal | |
| Gimbal | 3-axis stabilised, ±0.01° accuracy, 90° tilt range | |
| Transmission range | 15 km (FCC) / 8 km (CE), encrypted AES-256 | |
| On-board storage | 128 GB, encrypted; real-time streaming to pilot tablet | |
| Ingress protection | IP54 | |
| Operating temperature | −20 to 50 °C | |
| Battery | 2 × 14,000 mAh intelligent Li-ion, hot-swap, 90 min charge | |
| Coverage rate | 0.8 – 1.2 km² per hour (solar string mission, GSD 1.5 cm/px) | |
| Included in box | Aircraft, 4 batteries, 2 chargers, rugged case, tablet controller, spare props | As AX-T4 plus LiDAR module and PPK base station |
Endurance figures measured at 25 °C, sea level, no wind. Thermal accuracy specification applies within the calibrated range at 25 °C ambient with emissivity set correctly. Calibration certificate is traceable and renewed annually.
AX-Flight — from mission to defect list
The drone is the easy part. The value is in turning 4,000 thermal images into a ranked, located and priced list of defects your maintenance team can action on Monday morning.
Import a CAD site plan, GeoJSON boundary or KML from your GIS. The planner generates string-by-string flight lines at the correct altitude and speed for your required ground sample distance — no manual waypoint tapping.
Thermal anomalies are classified as hotspot, bypass-diode failure, string open circuit, PID, soiling or delamination, then cross-referenced against the visible image to remove reflections and false positives.
Every defect is located to string and module position and assigned an estimated energy-loss figure, so repair work orders can be ranked by payback rather than by whoever shouted loudest.
REST API and CSV export push findings directly into SAP PM, Maximo or any ticketing system, so inspection results become work orders without a manual translation step.
Built for assets that are expensive to walk.
A 2 MWp rooftop array takes a two-person crew three days to inspect manually. The same array takes one pilot four hours with a UAV — and produces a geo-referenced record instead of a clipboard.
String-level hotspot and diode detection on rooftops, carports and ground-mount arrays of any size.
Blade leading-edge erosion, lightning damage and surface cracks from a standoff position — no rope access required.
Insulator and connector thermal anomalies along corridors, flown by waypoint with automatic obstacle clearance.
Roof moisture ingress, insulation gaps and electrical panel hotspots for facility and insurance surveys.
What actually ships with the aircraft
Industrial UAV procurement fails on paperwork more often than on hardware. We handle the documentation, training and spares so the platform is operational when it lands.
- Two-day on-site training — pilot operations, mission planning, data processing and defect interpretation, delivered at your site or ours.
- Spares kit — propellers, batteries, gimbal damper and landing gear held at regional warehouses for 48-hour dispatch.
- Export-licence support — technical specifications, ECCN classification and end-user documentation prepared for your import authority.
- Insurance & registration guidance — operational category guidance for your jurisdiction, plus third-party liability documentation.
- Fleet size supported
- 1 – 200 aircraft
- Software licence
- Perpetual, per site
- Training
- 2 days on-site, included
- Spares availability
- 48 h from regional warehouse
- Warranty
- 24 months airframe & payload
- Service
- Annual calibration & airworthiness check
Book a demonstration flight
We can fly a demonstration over your site or a comparable asset, then hand you the raw thermal data, the defect list and the software report — so you evaluate the output, not the brochure.