Page 12: of Marine Technology Magazine (September 2025)

Subsea Defense

MTR 100

Tritech’s MicronNav USBL SBG System’s Ekinox

SBG

Oceaneering International is making waves with its Free- sensor hubs, extending the range and capability of underwater dom AUV, recently selected by the Defense Innovation Unit networks. And a particularly innovative concept comes from (DIU) in 2024 as a prototype Large Displacement Unmanned SubSeaSail, whose semi-submersible platforms combine

Undersea Vehicle (LDUUV) for the U.S. Navy. The vehicle stealth, energy-harvesting propulsion, and ultra-low-cost op- has already conducted successful Navy demonstrations—un- eration. HORUS is a semi-submersible observation platform docking, obstacle avoidance, precision payload delivery, and capable of silent intelligence, surveillance, and reconnais- long-duration surveys—marking an important step in autono- sance (ISR), while HERMES is a rugged, self-righting trima- mous subsea capabilities. At the same time, Box? sh Robotics ran for logistics and high-speed tracking.

is pushing autonomy with ARV-i, its tetherless, resident under- water drone, which can stay submerged for months, and en- Subsea Comms: Connecting the Underwater Battlespace able sustained surveillance and asset monitoring missions. And As unmanned underwater systems proliferate, reliable un- ecoSUB Robotics is democratizing subsea autonomy with its derwater communication is equally as critical as navigation family of lightweight, affordable AUVs that can be deployed and sensing, and MTR100 companies are pioneering solutions in large numbers. Their portability and ease of use make them that enable navies to create highly integrated and distributed ideal for a wide range of applications, from environmental subsea networks. Sonardyne has long been a leader in subsea monitoring, to asset inspection, to tactical swarm operations. communications and positioning. Its BlueComm optical mo-

On the surface, SeaTrac Systems’ SP-48 solar-powered dem provides high-speed wireless data transfer between ve-

USVs can serve as persistent communication relays or mobile hicles or from vehicle to surface, while their Ranger 2 USBL

Nortek’s Nucleus 1000 Box? sh Robotics’ ARV-i drone.

Box? sh Robotics

Norteck Tritech International 12 September/October 2025

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