
Platform
R4: modular autonomoussurface system
Designed for operational use. Modular by design, adaptable to different missions.
Modular design for multiple capabilities
R4’s modular design supports the integration of different payloads, sensors and system components to meet specific operational requirements.
ISR & maritime awareness
Watches the water around the clock, without a crew standing every shift.
Force protection
Keeps watch around ships, ports, or installations so nothing gets close unnoticed.
UAV deployment
Launches and recovers drones from the deck, extending the sensor reach beyond the hull itself.
Logistics support
Supplies moved through waters too shallow, narrow, or exposed to risk a crewed run.
Distributed operations
Several unmanned units, one shared objective, without someone directing every move by hand.
Mine counter-measures & counter-UAS
Sonar and ROV for near-shore mine detection. Same hull, different payload — quick switch to intercepting small drones.

Software components controlling the vessel
Nautrik collaborative autonomy (NCA)
NCA is Nautrik’s software system for coordinating unmanned vessels and connecting them with the operator and external C2 systems. It provides a common interface for tasking, coordination and control across the fleet.
Nautopilot
The onboard autonomy stack. Provides autonomous navigation, including GPS-denied operation, and maintains a safe position when communications are degraded or unavailable.
NCA server
A deployable backend that can run in the cloud, ashore, or aboard a host vessel.
NCA client
A modular operator interface for tasking and monitoring individual vessels or coordinating multiple units.
Nau-tak
Nautrik’s ATAK plug-in, integrating Nautrik vessels directly into the tactical environment used by ATAK operators.
NCA is system-agnostic and runs on the R4 Riverine, Nautrik’s in-house developed autonomous USV. The R4 supports STANAG 4817 for integration with allied command systems and can operate alongside both crewed and uncrewed assets. It is designed for tasks including patrol, surveillance, survey, logistics, mine countermeasures support and force protection, and can be deployed from a host vessel, quay or trailer.

Standards
STANAG 4817-compatible. Navigates in accordance with COLREG. Integrates directly with A-TAK.
Key figures
Weight: 850 kg Range: 300+ nm Payload: 300+ kg







