Submersible inspection crawler
Sends the crawler where a person should not go
Overview
A fully submersible tethered crawler that inspects the spaces a soldier should not have to enter: bunkers and tunnels, ammunition-depot ducts, ship and submarine compartments, flooded infrastructure. It is a steerable four-wheel-drive platform sealed to IP68 with 100 mm of ground clearance, run down a 500 m hybrid tether that carries both power and optical fibre, so the picture never drops out at depth. Five full-HD cameras give 360-degree coverage with automated crack detection, and temperature, pressure, humidity and turbidity sensors read the environment alongside the video. Every feed returns to a command console in real time, so the survey happens with the operator at a safe distance rather than the confined space.
A fully submersible tethered crawler that inspects the confined spaces a soldier should not enter: bunker ducts, ship and submarine compartments, flooded infrastructure, all from a safe distance.
How it comes to you
Unstrat is the authorised global representative and distributor for this capability. It is already in service with a track record behind it, so you are buying something that has done the job elsewhere, not funding a first attempt. You are not the test bed.
Why Unstrat: the difference
Independent, non-aligned origin, with no political exposure to any major-power ecosystem.
One accountable team from first briefing through delivery and in-region sustainment.
IP68 sealing with a 500 m hybrid tether, so the feed holds at depth rather than dropping out.
Capabilities
- Steerable four-wheel-drive platform with 100 mm of ground clearance
- IP68 fully submersible sealing
- 500 m hybrid tether carrying power and optical fibre
- Five full-HD cameras giving 360-degree coverage with automated crack detection
- Temperature, pressure, humidity and turbidity sensors
- Real-time feed to a command console
Specifications
| Type | Submersible inspection crawler |
| Sealing | IP68 fully submersible |
| Drive | Steerable 4WD, 100 mm ground clearance |
| Tether | 500 m hybrid power + optical fibre |
| Cameras | 5x full-HD, 360° coverage, automated crack detection |
| Sensors | Temperature, pressure, humidity, turbidity |
| Origin | Independent / non-aligned |
| Support | In-region sustainment |
How it reaches you
Related capability
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Procurement & sustainment
Classification and the end-user-certificate chain are confirmed before this capability is represented to your market.
Sourced from an independent manufacturer: no major-power disclosure rules or political conditions.
A single team responsible from first briefing through delivery: not a chain of foreign primes to integrate yourself.
Lifecycle support and operator training delivered in-region, building capability that outlasts the initial deployment.
Questions buyers ask
What is a submersible inspection crawler?
It is a tethered ground robot that inspects confined and flooded spaces so a person does not have to enter them. Ours is an IP68 fully submersible crawler on a steerable four-wheel drive with 100 mm of ground clearance, running a 500 m hybrid tether that carries power and optical fibre, with five full-HD cameras and a sensor suite streaming to a command console.
See: How it compares to sending a person inISR capability context
Can the inspection crawler work underwater?
Yes. It is IP68 fully submersible, so it works in flooded ducts and compartments where the human alternative would be a diver. The 500 m hybrid tether carries power and optical fibre together, so the live feed holds at range rather than dropping out during a deep or long inspection.
What can the crawler see and measure inside a space?
Five full-HD cameras giving 360-degree coverage with automated crack detection, and sensors for temperature, pressure, humidity and turbidity, all streamed live to a command console. That gives a real-time inspection watched from the console rather than a report written after an entry. Whether the console records and stores the feed is a point to confirm during procurement.
Why use a crawler instead of sending someone in?
Because the spaces that most need inspecting, bunker ducts, ammunition-depot ducting, ship and submarine compartments and flooded structures, are the ones most dangerous to enter. The crawler puts cameras and sensors inside on a 500 m tether while people stay at the console, removing the entry permit, atmosphere testing, rescue standby and risk a human entry demands.
Remote crawler for bunker and tunnel reconnaissance
That is one of its stated applications, alongside ammunition-depot ducts, ship and submarine compartments and critical-infrastructure survey. The steerable 4WD with 100 mm of ground clearance is what lets it cross debris and uneven surfaces inside a bunker or tunnel while the operator stays outside.
Crawler that inspects ship and submarine compartments without a diver
Because it is IP68 fully submersible on a 500 m hybrid tether, it works in flooded ship and submarine compartments where the alternative is a diver, with all the risk and preparation that adds. The five cameras and the sensor suite give a live picture at the console.
Inspection crawler that finds cracks automatically
It carries automated crack detection across five full-HD cameras giving 360-degree coverage, so the inspection is not wholly dependent on an operator spotting every defect by eye. Confirm the crack-detection scope and how findings are logged in the technical review.
Crawler for critical-infrastructure survey from a safe distance
Critical-infrastructure survey is a stated application. The 500 m hybrid tether keeps the crawler connected at range while the operator works from a command console, and the temperature, pressure, humidity and turbidity sensors add measured data to the camera picture.
Inspection crawler from a non-aligned supplier
It comes from an independent, non-aligned supplier with one accountable team and in-region sustainment. Because the inspection data covers your own bunkers, depots, ships and infrastructure, that independent, non-aligned origin with one accountable team and in-region sustainment is part of the reason to look at it.
We need to inspect flooded ducts and compartments we cannot safely send a person into. Does this fit?
That is exactly what it is built for. It is IP68 fully submersible on a 500 m hybrid tether, with five cameras and a sensor suite streaming live to a console, so it inspects flooded ducts and compartments without a diver and without a confined-space entry. Confirm the specific duct diameters and the operating depth you need at survey, since those set whether the crawler physically reaches the spaces you have in mind.
How deep can the crawler actually go underwater?
That is an honest open point: we publish IP68 fully submersible sealing but not a specific operating depth rating. So the depth envelope is a figure to get in writing in the technical review rather than infer from the ingress rating. Bring the actual depths and pressures of the spaces you need surveyed, and confirm the crawler is rated for them before committing.
How far into a structure can the crawler travel, and what limits it?
It runs on a 500 m hybrid tether on a steerable 4WD with 100 mm of ground clearance, so it reaches well beyond where a person could safely go and return. What limits it inside a given structure, the duct diameter it can enter and its crawler speed, is not published, so confirm those at survey against the specific spaces you need to inspect rather than assuming the tether length is the only constraint.
How does the crawler get its picture back, and can it be jammed?
The 500 m tether carries the video down optical fibre alongside the power, so the feed travels on the fibre rather than an RF link, and it streams in real time to a command console. That fibre path is the reason a long or deep inspection holds rather than dropping out. Whether and how the console records and stores the inspection is a point to confirm in the technical review so the data path suits your security needs.
How does this land crawler fit alongside the air systems in the same range?
It is the land member of an otherwise air-focused range: while the ISR quadcopters, tethered overwatch and drone-in-a-box stations watch from above, the crawler inspects the confined and flooded spaces below. The same principal builds a separate fleet command-and-control suite designed to fit any drone and bring feeds together; we do not publish a proven integration with the crawler, so scope whether you want the crawler's feed on the same command picture as the air systems in the technical review and confirm it at trial.
How is an inspection capability for our own bunkers and ships kept sovereign?
By sourcing the crawler and its support from one independent, non-aligned team with in-region sustainment. The crawler streams a real-time feed from inside your own bunkers, ammunition depots, ships and infrastructure to a command console, so that independent, non-aligned origin with one accountable team and in-region sustainment is the sovereign position. Whether that feed is recorded, where any inspection data is stored and who holds it is not settled by the hardware sourcing, so fix recording and data handling as a contractual point up front during procurement.
Submersible inspection crawler: questions
What is Submersible inspection crawler?
Submersible inspection crawler is Unstrat's Land (Land Domain) capability: A fully submersible tethered crawler that inspects the spaces a soldier should not have to enter: bunkers and tunnels, ammunition-depot ducts, ship and submarine compartments, flooded infrastructure. It is a steerable four-wheel-drive platform sealed to IP68 with 100 mm of ground clearance, run down a 500 m hybrid tether that carries both power and optical fibre, so the picture never drops out at depth. Five full-HD cameras give 360-degree coverage with automated crack detection, and temperature, pressure, humidity and turbidity sensors read the environment alongside the video. Every feed returns to a command console in real time, so the survey happens with the operator at a safe distance rather than the confined space.
How does Submersible inspection crawler work?
Submersible inspection crawler delivers its effect through steerable four-wheel-drive platform with 100 mm of ground clearance, IP68 fully submersible sealing and 500 m hybrid tether carrying power and optical fibre, capabilities matched to the requirement and confirmed under briefing rather than published.
Who makes Submersible inspection crawler?
Submersible inspection crawler is built by The Heavy-Payload UAS House, whose focus is heavy-lift and isr unmanned aircraft. Unstrat represents The Heavy-Payload UAS House to government and enterprise buyers worldwide as an independent, non-aligned prime vendor.
Why choose Submersible inspection crawler over a major-power alternative?
Submersible inspection crawler is sourced from an independent, non-aligned manufacturer, so it carries no major-power disclosure rules, upgrade-locks or political ramifications. Concretely: IP68 sealing with a 500 m hybrid tether, so the feed holds at depth rather than dropping out. The capability is accountable to you, not to a foreign vendor's government and its release schedule.
How is Submersible inspection crawler procured, and where can it be exported?
A fully submersible tethered crawler that inspects the confined spaces a soldier should not enter: bunker ducts, ship and submarine compartments, flooded infrastructure, all from a safe distance. Every engagement begins with a briefing, and export eligibility is confirmed per market under briefing rather than published. Where controlled capabilities are involved, the classification and end-user-certificate chain is confirmed first. Submersible inspection crawler is then sustained in-region by one accountable team from briefing through long-term operation.