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Side view of the Mariner X autonomous vessel navigating Norwegian waters with mountains in the background.

The Mariner XSeadrone by Maritime Robotics

THE MARINER X UNCREWED SURFACE VESSEL (USV) for open ocean waters. Robust and effective, designed for precise data acquisition, environmental monitoring, and surveillance.

A modular deck
built for real missions

The Mariner X is designed to integrate a broad variety of payloads — from cameras and sonars to AUVs and LARS. With a spacious, railing-equipped back deck, two moonpools, and dedicated sensor positions, it offers the flexibility to support specialized tasks across industries. Seamless integration with navigation and data systems ensures high-quality results with minimal interference.

Designed for extended
offshore autonomy

Built with a rugged, polyethylene hull, the Mariner X withstands harsh marine conditions with minimal maintenance. Its powerful propulsion system, long-range fuel capacity (up to 25 days), and temperature-controlled core make it ideal for extended, unattended missions. Wherever the mission goes, the Mariner X stays reliable.

Smart operations
from anywhere

Equipped with Maritime Robotics’ Autonomous Navigation System, the Mariner X operates remotely or fully autonomously, with real-time data acquisition and safe navigation protocols. Redundant propulsion and precision control enable safe missions even in confined or complex environments. Its multi-vessel formation mode also allows it to operate as part of larger fleets with ease.
A side view render of the Mariner X
9000 mm
3000 mm
A front view render of the Mariner X
2500 mm

Primary Specifications

Dry weight 5000 kg
Top speed* 12 kts
Fuel capacity* 25 days
Payload capacity* 1200 kg
High-bandwidth communication LTE (4G)
Situational awareness Camera / AIS Class B / Radar
*Depending on conditions and payload integrations.

Optional Specifications

Data capturing software SeaCapture
Additional communication links MBR / Starlink
Enhanced situational awareness SeaSight / AIS Class A / VHF

Durability and longevity

The Mariner X is a high-performance vessel tailored for both offshore and coastal operations. With a hull made of high density polyethylene, the Mariner X is capable of withstanding harsh weather conditions with its reliable and robust construction. requires minimal maintenance. High density polyethylene, known for its durability and longevity, requires minimal maintenance and offers a nearly unsinkable build. Capable of being launched from a port for standalone operations or deployed from a vessel-based davit, the Mariner X offers operational flexibility that meet the diverse requirements of its users.

Protected core hardware

The vessel’s core hardware is housed in a temperature controlled room and the navigation and communication systems are secured under a protective, temperature controlled radome. This ensures protection against harsh weather conditions, allowing the Mariner X to operate offshore for days at a time without harming critical equipment. This includes the vessel’s standard equipment such as a GNSS Compass, Class B AIS, Radar, Cameras, onboard control systems, and communication modems, as well as any additional features available. The situational awareness system combined with its backup propulsion adds layers of safety, making the Mariner X a dependable platform for advanced maritime operations.

Customizable payload integrations

The large back deck is capable of carrying more than a ton's worth of payload, depending on conditions and the payload integrations, greatly expanding the vessel’s operational capabilities. The back deck includes a railing system, facilitating the attachment of custom payloads such as water sampling systems, ROV and AUV Launch and Recovery Systems (LARS), deck generators, winches and cargo. This adaptability makes it suitable for various applications, from environmental monitoring to vessel support in offshore construction.

Precise data acquisition

Equipped with two moonpool elevators and two dedicated sensor positions, the Mariner X offers great flexibility in sensor deployment and enhances data quality, a critical aspect for surveying and scientific research. Its flat hull design combined with the moonpool elevators, bow thrusters for precise slow speed navigation, and the option to add a Seakeeper to further stabilize the vessel, provides the stability and clearance for precise survey work.

Downloads

Mariner X brochure

(1.28 MB) Download

SeaSight brochure

(3.82 MB) Download

SeaCapture brochure

(972.83 KB) Download
Front silhouette rendering of the Mariner X uncrewed surface vessel by Maritime Robotics, highlighting its sleek and stealthy design.

The Mariner X is a robust, uncrewed surface vessel (USV) designed for autonomous maritime operations in challenging environments.

Two uncrewed surface vessels (Mariner and Mariner X) by Maritime Robotics operating together in open sea.

Our sea drones vessels can operate in coordinated swarms or pairs, enabling scalable autonomous missions such as patrolling, search and rescue, or subsea inspection support.

Close-up of the Mariner X vessel slicing through water, emphasizing its stability and hydrodynamic shape.

Built for endurance and precision, the Mariner X sea drone provides stable autonomous operations even in rough seas, ideal for hydrographic surveys and defense applications.

Perspective view of the Mariner X USV navigating across open water with its communication and sensor systems visible.

Equipped with advanced communication arrays and modular sensor payloads, the Mariner X is a flexible platform for real-time maritime situational awareness.

Mariner X vessel being lowered into the water using a crane system, supported by a crewed boat.

Deployable from ship or shore, the Mariner X is designed for fast mobilization and recovery, enhancing mission efficiency for both civilian and defense applications.

Side view of the Mariner X autonomous vessel navigating Norwegian waters with mountains in the background.

Designed for long-range missions in extreme environments, this USV supports autonomous data collection for oceanography, security, and environmental monitoring.

Two different autonomous vessels (Mariner X and Mariner) from Maritime Robotics on a joint maritime mission.

Interoperable with other autonomous systems, our sea drones are capable of formation control, extending mission flexibility for multi-domain operations.

Mariner X uncrewed sea drone cruising at high speed across open waters, leaving a dynamic wake behind.

With high-speed capabilities and remote control functionality, the Mariner X excels in rapid deployment scenarios for surveillance, research, and tactical marine missions.

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