The published reference
The supplied manufacturer brochure describes an AD-400 long-distance headrace water-tunnel inspection project associated with China Southern Power Grid.
The task
Access a flooded water tunnel for inspection and data collection over a long route.
The system to verify
AD-400 vehicle, external tethered supply and a project-specific inspection package. The final sensors, tether management and position reference need to be checked against the original project record.
The reported outcome
For this development project, the manufacturer reports inspection inside a 5.5 km headrace tunnel, including 360-degree coverage, long-distance power and communication, and cruising capability. This is the brochure’s project statement, distinct from the 5 km maximum range on the current product webpage.
Evidence for a comparable project
- Actual inspected route length and the vehicle version
- Tunnel bends, flow, access and deployment conditions
- Position referencing, coverage and data-quality criteria
- Original footage, logs, recovery plan and acceptance record
What this reference establishes
The brochure identifies a relevant manufacturer application. It offers a starting point for asking about the technical approach and original evidence.
The available summary does not establish universal range, localization accuracy or suitability for every tunnel. Performance and transfer to a new site require the underlying project records.
Read the application guide