Page 41: of Marine Technology Magazine (March 2026)

¯ EdgeTech ¯ ACUA Ocean ¯ HydroSurv x 7cm), low power, high quality EdgeTech OEM side scan a wide range of hydrographic and environmental data col- sonar solution for small and micro vehicles. lection campaigns. The vessel is equipped with twin 2.5 kW

The dual frequency Trace system can be con? gured to op- rim-driven thrusters, minimizing the risk of entanglement or erate at a range of frequency pairs including: 540/1600 kHz damage during shallow-water operations, and is powered by or 540/850 kHz or 850/1600kHz with standard cabled arrays a 6-kWh lithium battery system enabling full-day endurance. or customized vehicle-speci? c arrays. The system is ideal As a commercial-grade platform, the REAV-25 features Hy- for shallow water survey applications, providing an excellent droSurv’s Virtual Watchkeeper Vessel Control System (VCS) combination for range and resolution. With an average power alongside the Dynautics Spectre autopilot.

draw of only 7-10W the 12-24 v DC system has been opti- The USV, named Saga, will complete trials in the UK in mized for size, power and weight. March 2026 and is expected to enter operational service with

Integrators can choose RS232 communications for navigation Skanska in Norway in early spring.

devices and other sensors. External triggering is also available.

The Trace system has an ethernet interface to connect to the ¯ ACUA Ocean Unveils FleetMind Integrated Platform host platform and comes with a common EdgeTech command Monitoring System for Autonomous Vessels and control interface. EdgeTech’s sonar data is streamed from ACUA Ocean has announced the launch of FleetMind, an the Trace system for storage on the host platform. integrated platform monitoring system for autonomous ves- sels, ? lling a gap in the medium and large unmanned surface ¯ HydroSurv Delivers REAV-25 USV to Skanska Norway vehicle (USV) management capability.

HydroSurv has announced the sale and delivery of its latest While existing autonomy software solutions focus on com-

REAV-25 Uncrewed Surface Vessel (USV) to Skanska Norway mand and control, navigation and collision avoidance, end users

AS, marking a milestone in Skanska’s expansion of uncrewed are consolidating the number of systems being deployed. This survey capability for infrastructure projects across the country. necessitates a modular approach to the C2 software integra-

Skanska is a civil engineering and construction company tion layer, allowing focus to be spent on reducing the operating with works spanning inland waterways, ports and harbors, burden of vessel management and maintenance. ACUA’s Fleet- and coastal environments. Supporting the successful delivery Mind solution provides vessel operators with hardware/soft- of these projects is Skanska’s in-house survey and inspection ware interface needed to enable high-level software to control unit, where the REAV-25 will play a key role in strengthening the vessel while also providing intelligent platform engineering.

inland hydrographic survey operations. While many existing USV designs are optimized as light-

The USV will be primarily deployed to deliver high-resolu- weight, mission-speci? c craft, the next generation of larger tion bathymetric surveys using a Norbit iWBMS multibeam work-boat and ship-based autonomous platforms demands echo sounder, supporting the design, construction and long- a different architectural approach. For these high-endurance term maintenance of infrastructure located over, under and assets, the complexity of the onboard engineering systems— alongside the water. The acquisition re? ects Skanska’s grow- propulsion, power management, and structural health—is as ing adoption of uncrewed technologies to improve data avail- critical to mission success as the navigation and C2 software. ability, operational ef? ciency and safety, while reducing the FleetMind addresses this by prioritizing the "engineering environmental footprint of survey activities. stack" alongside traditional autonomy.

Designed for zero-emission day operations, the REAV-25 is FleetMind delivers scalable modular data aggregation of ves- a sheltered-water, multipurpose USV capable of supporting sel systems (NMEA, PLCs, Sensors, Networks, etc.) into data www.marinetechnologynews.com 41

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