Overview
SEANET is not an improved marine drone — it discards the logic of maritime autonomy itself. Every classical unmanned surface system is built around one of two compromises: a battery, giving silence but 8–24 hours of endurance at 3–5 knots with hard dependence on a base; or an internal combustion engine, giving days or weeks of operation at the cost of noise, thermal signature, vibration, maintenance, fuel and a high probability of detection long before entering the working area. In both cases the system is conceived as a mission — go out, do the job, come back. Presence time is secondary and speed becomes a fetish.
SEANET changes the axis. Endurance is measured in time rather than missions: a week, 30 days, 45 days are the standard regime rather than the exception. The reason is that the system rests neither on a battery nor on an engine but on the Gereon autonomous energy unit, where generation and storage are combined in one volume.
Applications
Coast guard and maritime area control. The priority is time. A vessel with 1× or 2× Gereon reaches the area and remains there for weeks in economical transit, drift or station-keeping. Payload is selected for the task: optics, IR, AIS, radio direction-finding, evidentiary recording. It does not need to arrive in time — it is already in position. Control becomes continuous rather than reactive.
Rapid response. The system does not change; its energy configuration does. With 2× or 3× Gereon the vessel performs active tasks: reaching a designated line, covering significant distance, executing a manoeuvre, continuing and returning to the originating port. At 3× Gereon the total energy reserve permits two to three such distances consecutively — effectively trans-oceanic transits without refuelling or logistic support.
Ambush and persistent presence. Extended waiting in a passive state with visual and IR concealment, activating only on event.
Operating Principle
Energy. One Gereon module delivers a steady, predictable daily energy output, with a service interval measured in many months of continuous operation. This is not peak power — it is a flat, predictable supply with no combustion, no moving parts and no degradation on classical scenarios. For a marine platform the absence of an internal combustion engine means no exhaust, no vibration and no dominant acoustic source.
Energy balance. At the economical displacement speed of a compact autonomous surface vessel, the combined draw of propulsion, navigation, communications and sensors stays modest even allowing for sea state and current. One Gereon module covers this balance with margin, so movement, communication and observation run simultaneously for weeks without degrading the signature profile.
Scaling. Adding energy modules raises available power roughly in proportion to the number installed. Scaling is linear in energy but non-linear in tactics: at 2× the vessel can raise payload significantly or increase average speed without losing endurance; at 3× it gains long station-keeping against current, power for heavier sensors, electronic warfare or sonar suites, and endurance well beyond a month. The platform ceases to be an economical vehicle and becomes an autonomous presence node with surplus energy.
Communications. Handled through IASS. A classical marine radio channel is limited by the radio horizon, on the order of tens of kilometres. Satellite communication gives range but introduces dependence, vulnerability and constant emission. IASS is event-driven, prioritising channel continuity over bandwidth: control and telemetry work at global distances without continuous broadband exchange. The vessel can reach the area in advance, stay there and remain controllable without making noise in the ether.
Stealth. Concealment is not a subsystem but a consequence of the architecture. No engine means no primary acoustic or thermal signature. No power peaks means no characteristic electromagnetic bursts. Event-driven communication means no constant radio emission. In loiter the propulsor is either off or making minimal corrections. The vessel is unclassifiable most of the time and dissolves into the marine background.
Passive visual deception. Against infrared the vessel is protected by Arbok-Stealth, based on a graphene-like material that absorbs radiation and flattens the thermal profile without forming contrast zones. Against visual detection in ambush mode the upper deck is shaped as an object of no interest to an observer — driftwood, an old boat, debris, a pontoon, fishing litter, a craft with no signs of control. Geometry is deliberately irregular, asymmetric, slightly crooked, without repeating forms, clean lines or angles, with an effect of age and visual noise. Optics and antennas are styled as environmental elements and do not read as functional units. The vessel is not perceived as a target either by an operator or by a primary classification algorithm, and stays outside attention until activation.
Awareness. Growth in energy does not turn the system into a fast expendable. Even in active scenarios the operator and AI retain continuous access to telemetry, sensors and the acoustic and visual situation around the vessel throughout the route. The system does not lose awareness and does not fall back into blind autonomy — it acts at global distance while remaining controllable, observing and recoverable, rather than becoming a single-use platform.
Key Parameters
- Hull class: compact displacement autonomous surface vessel, sized for coastal and open-ocean operation.
- Speed regime: economical displacement cruise, optimized for endurance and signature control rather than sprint speed.
- Power draw: propulsion, navigation, communications and sensors run on a modest, continuous power budget, comfortably covered by a single energy module.
- Energy source: one to three Gereon binary energy modules (generation and storage combined in one unit), added to trade off endurance, payload and speed.
- Module service interval: measured in many months of continuous operation between servicing.
- Endurance, standard regime: from about a week up to 30–45 days on station without resupply.
- Endurance, maximum configuration: 30 days and beyond, including long-distance transit without refuelling.
- Payload/speed gain with additional modules: a significant increase in payload or average speed without loss of endurance.
- Communication range (IASS): global-scale, event-driven, far beyond the horizon-limited range of conventional marine radio.
- Benchmark comparison, battery-only USV: hours of endurance at low speed with hard base dependence.
- Combustion: none — no exhaust, no vibration, no dominant acoustic source.
Architecture and Components
Compact displacement hull sized for coastal and open-ocean operation; 1–3 Gereon binary energy modules combining generation and storage in one volume; electric propulsor; IASS communication module; sensor payload selected by task — optics, IR, AIS, radio direction-finding, sonar, electronic warfare; Arbok-Stealth graphene-like IR coating; passive visual deception superstructure with irregular asymmetric geometry and disguised optics and antennas.
Advantages
Endurance measured in weeks and months rather than hours, with no base dependence and no refuelling.
Stealth as an architectural property: no combustion signature, no power peaks, no continuous radio emission, plus IR suppression and visual deception.
Controllability at global distance without broadband emission, through event-driven IASS.
Continuous situational awareness retained even in active scenarios — the vessel remains a recoverable asset rather than an expendable.
Configurable by energy rather than by redesign: the same platform serves persistent surveillance at 1× and trans-oceanic active tasking at 3×.
Integrations
Gereon (Binary Battery) · BINARY BATTERY — power core
GEREON AIRNET — UAV counterpart of the same architecture
IASS — communications
ARBOK-STEALTH CABLE (ASC) · ARBOK-PHANTOM · ARBOK EMI TEG Protection Paint — signature management on the same graphene-like material base
Deployment & Operation
Deployed by energy configuration rather than by variant: 1× Gereon for persistent low-energy presence, 2× for increased payload or speed, 3× for active long-range tasking. Operation covers economical transit, drift, station-keeping against current, and ambush loiter with the propulsor off.
Deployment follows standard practice for small unmanned surface platforms: transport to the launch point, in-water commissioning, and remote or autonomous transit to the operating area. The vessel is operated and monitored by a small remote-operations team rather than an onboard crew, and maintenance follows the module service interval together with routine hull, sensor and coating upkeep.
TRL
TRL 3 — assigned by Michael, 2026-08-06.
The Gereon power core is rated TRL 4 in the GEREON AIRNET card; the marine platform itself carries its own, earlier-stage rating pending sea trials.
Market Potential
Maritime domain awareness, coast guard modernization, and exclusive-economic-zone monitoring are growing budget lines for coastal states as illegal fishing, smuggling, and grey-zone incursions increase. Conventional unmanned surface vessels force a choice between short-endurance electric platforms tied to a base and noisy, high-maintenance combustion-powered platforms with a large detectable signature — neither suits persistent, low-visibility coverage of large sea areas. A platform that combines long, base-independent endurance with a minimal acoustic, thermal, and electromagnetic signature addresses coast guard, border security, naval reconnaissance, and special-operations demand that current USVs cannot meet, opening a new category of persistent-presence maritime assets rather than mission-based ones.
Typical Project Economics
Project-level CAPEX and OPEX are not tracked as a standard line item — costs are calculated per deployment and configuration (number of energy modules, sensor payload, and operating region).
Risk Factors
Visual detection remains possible in ambush mode, which is why passive visual deception is used as a layered defense rather than relied upon as absolute. The platform and its Gereon power core are both at an early maturity stage (TRL 3), so performance, endurance, and signature-management claims require validation through sea trials before large-scale deployment. Regulatory and rules-of-engagement frameworks for autonomous reconnaissance vessels in contested or international waters remain unsettled in many jurisdictions.
Related Technologies
Gereon (Binary Battery) · GEREON AIRNET · BINARY BATTERY · IASS · ARBOK-PHANTOM · ARBOK-LINER (ALB)