Sea domain
Autonomous surface and undersea systems sharing the same Flowstate core — and the same payload modules — as our aircraft.
Land domain
Ground systems that inherit the air picture rather than rebuild it, and carry the aircraft forward instead of waiting on it.
Autonomy core
Perception, decision and control on board. No cloud, no dependency, no link required.
Flowstate
Works
Airframe to firmware, taken in-house from concept through CFD, qualification and flight test.
Capability
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Sea domain · Concept
Autonomous surface and undersea systems that share the same autonomy core — and the same payload modules — as the aircraft.
Concept · first systems 2027
Surface and subsurface contacts normally live in their own systems, read by their own operators, and reconciled with the air picture by a person on a radio. That reconciliation is the slowest part of the kill chain and the easiest part to break.
Both systems here run Flowstate. Their contacts do not arrive as a feed to be merged — they arrive as tracks in the picture the aircraft are already holding.
Two concepts, both carrying the 2 kg payload interface qualified on HADI.
Sea / 01 · Concept
Autonomous surface vessel
Small attritable USV under six metres. A modular bay takes HADI payload modules unchanged, and the deck launches and recovers a HADI. ISR picket, electronic warfare, and signature generation as a decoy.
A boat that can put an aircraft a hundred kilometres beyond itself is not a boat with a drone on it. It is the same sensor network with a longer arm.
Sea / 02 · Concept
Uncrewed undersea vehicle
Compact UUV holding a persistent passive acoustic and magnetic watch. Runs dark for days, surfaces on a schedule or a cue to burst its picture into the mesh, then goes back down.
Subsurface contacts usually live in a separate system read by separate people. Undertow puts them where everything else already is.
Targets, not measurements. Nothing here has been built.
| Target | Eddy | Undertow |
|---|---|---|
| Class | Surface | Subsurface |
| Size | Under 6 m | Man-portable class |
| Payload interface | 2 kg, HADI-common | 2 kg, HADI-common |
| Sensing | EO / IR · RF | Passive acoustic · magnetic |
| Endurance | Days | Days |
| Comms | Mesh, continuous | Mesh, surfaced burst |
| Carries aircraft | Yes — launch and recovery | No |
| Autonomy | Flowstate, on board | Flowstate, on board |
Marked rows differ between systems. Everything else is common by design.
Why it is cheap
Perception, mesh, behaviours and the payload interface come from HADI. What Eddy and Undertow add is a hull and a propulsion fit — the parts that genuinely have to be new.
One payload qualification. One spares chain. One training pipeline.
Neither system is frozen. If one is close to a requirement you hold, tell us before it is.
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