Unsafe manual access
People still enter unsafe spaces before the risk is clear.
COAX inspection platform
Drone built to go where humans should not.
COAX is a compact drone for confined and hazardous environments. Paired with RevSight, it becomes a complete inspection platform - from data capture to actionable reports.
The problem
Inspections are still too risky and too slow.
Confined assets are hard to access. Existing drones struggle up close. Raw video rarely gives teams a clear decision.
Difficult geometry
Open-air drones struggle near walls, pipes and clutter.
Low-value outputs
Raw footage is slow to review and hard to act on.
COAX
Send COAX first.
A compact inspection drone for tunnels, ducts, shafts, tanks and other spaces where manual entry is unsafe, slow or expensive.
Flight system Innovative coaxial propulsion
- Works without GNSS/GPS
- Visual and 3D data capture
- Robust protective frame
- 15+ minutes of flight
RevSight
Any inspection data, ready to use.
RevSight ingests visual, thermal, 3D and metadata, then turns it into findings and reports.
Ingest any format
Video, images, thermal, 3D scans, point clouds and metadata.
Review findings
Mark defects and link evidence.
Report clearly
Export outputs for teams.
Workflow
From first entry to inspection report.
COAX captures data where access is difficult. RevSight structures it for review and decision-making.
Task
Select the asset, suspected issue or inspection zone.
Deploy
Send COAX into the confined or hazardous space before people enter.
Capture
Collect visual, thermal, low-light or depth-ready inspection data.
Review
Use RevSight to identify, annotate and prioritize findings.
Report
Create structured outputs for operational and maintenance teams.
Use cases
For assets with difficult access and high consequences.
COAX is being developed for inspection scenarios where safety, access and data quality matter.
Plants, substations and pipelines
Tanks, ducts and overhead structures
Tunnels, bridges and rail hubs
Culverts, sewers and public buildings
Post-incident assessment
Close-range ISR and facility checks
Frequently asked questions
What teams ask before a pilot inspection.
The essentials about COAX, confined-space operations and the RevSight inspection workflow.
Can COAX operate without GPS?
Yes. COAX is designed for confined assets where GNSS/GPS is unavailable, including tunnels, tanks, sewers, ducts and technical shafts.
What types of assets can COAX inspect?
COAX is being developed for close-range inspection of tunnels, sewers, tanks, ducts, shafts, pipelines, industrial facilities and other difficult or hazardous spaces.
What does RevSight add to a drone inspection?
RevSight brings visual, thermal, 3D and metadata into one workflow so teams can review findings, connect evidence and prepare structured reports.
Can we discuss a pilot inspection?
Yes. Revdock works with industrial and infrastructure partners to assess the asset, inspection objective, access conditions and expected outputs before a pilot.