Ultra Maritime torpedo countermeasures protect naval platforms by detecting, classifying, and defeating incoming threats in complex undersea environments.
BRAINTREE, Massachusetts – The rapid evolution of adversary torpedo technology is redefining the undersea battlespace. With smarter, stealthier and more lethal torpedoes that easily outmaneuver traditional decoys, and that adapt and re-acquire targets with remarkable precision, the need for next-generation torpedo defense solutions has never been greater. Ultra Maritime has been awarded a development contract for the next generation Acoustic Device Countermeasure (ADC) MK6 from the U.S. Navy, to provide technology that can address these threats.
Keeping today’s fleets protected in an increasingly contested maritime domain requires systems that are smarter, faster and fully adaptive. Ultra Maritime’s ADC MK6 is built for rapid deployment and speed, generating powerful, tailored acoustic signatures to confuse and divert incoming undersea weapons. Ultra Maritime’s design delivers mission-ready performance, improved acoustic output and robust compatibility that is built upon a decades-long record of delivering countermeasure systems to navies worldwide, providing a trusted layer of undersea defense in high-threat environments.
Ultra Maritime’s next-generation ADC program, jumpstarted by years of independent investment, demonstrates the ongoing commitment to providing allied fleets with decisive, future-ready undersea protection. From sonobuoys to sonar systems to acoustic countermeasures, Ultra Maritime continues to set the industry standard for anti-submarine warfare innovation, protecting against today’s threat and tomorrow’s unknown.
Ultra Maritime is showcasing a wide range of unique and next generation anti-submarine warfare capabilities for attendees at this week’s Surface Navy Association’s 2026 National Symposium in Arlington, Virginia.
Portfolio highlights will include the following:
Family of Scalable Radar Solutions
The Next Generation Surface Search Radar (NGSSR) is the Navy’s first multi-mission navigation radar that enhances warfighting capabilities and safety of navigation. This radar can be reconfigured through software updates and is designed to support combat systems, surface search, safety of navigation and periscope detection. Based on this fleet fielded capability, Ultra Maritime offers solutions as small as 18 inches in diameter to fit within the constraints of small spaces on unmanned platforms, providing reliable and proven options for autonomous navigation in highly contested environments.
Sea Tracker
Ultra Maritime’s Sea Tracker is a self-contained towed array in a 20ft ISO container providing modular capability with ASW or torpedo defense capability on both manned and unmanned surface ships. Sea Tracker’s scalable architecture enables the seamless integration of Ultra Maritime’s family of towed sonar technologies, including torpedo defense systems, inline active/passive, and strategic surveillance arrays. This system-of-systems capability enables a rapidly deployable containerized asset, allowing navies the ability to classify, track and prosecute the stealthiest submarines in all areas of operation.
Surface Ship Torpedo Defense
Ultra Maritime has made significant investment towards creating a complete Layered Torpedo Defense solution comprised of multiple strategies and systems working together to detect and neutralize incoming torpedo threats. This next generation torpedo defense capability combines expendable countermeasures, both soft and hard kill, with towed detection to ensure the safety of naval vessels from torpedo attacks. This integrated approach to torpedo defense is critical to address the growing submarine threat by significantly improving our survivability and drastically shortening the kill chain for an inbound threat.
Next Generation Countermeasures
The rapid evolution of adversary torpedo technology is redefining the undersea battlespace and placing unpresented pressure on today’s naval forces. Modern torpedoes are smarter, stealthier and more lethal with advanced acoustic processing to outmaneuver decoys. Ultra Maritime’s next generation ADC MK6 is built for rapid deployment and speed, with mission-ready performance, improved acoustic output and robust compatibility that provides a trusted layer of underwater defense in high-threat environments, built upon Ultra Maritime’s world-leading expendable countermeasure technology from the ADC MK2, ADC MK3 and ADC MK4.
BRAINTREE, Massachusetts – Ultra Maritime continues to advance its investment in the development of cutting-edge Next Generation Countermeasure systems — revolutionary autonomous undersea vehicles designed specifically as an anti-submarine warfare (ASW) solution.
These vehicles, both internally and externally launchable from submarines and unmanned undersea vehicles (UUVs), are engineered for independent operation. Once deployed, they maneuver away from the host platform to deliver real-time tactical updates and enhanced maritime domain awareness through robust acoustic communications.
As adversary undersea threats continue to evolve in capability, countermeasure systems must adapt to keep pace with both current and emerging challenges. To effectively counter these threats, traditional approaches alone are no longer sufficient — countermeasures must advance in sophistication, autonomy and adaptability. There is now a powerful convergence of technologies: torpedo countermeasures and UUVs, themselves. This convergence represents the next phase of ASW, where countermeasure systems integrate autonomous mobility, intelligent sensing and defensive effectors to provide a resilient, layered defense against evolving torpedo threats.
Recently, Ultra Maritime proved its capability in developing a full-duplex acoustic communication node, enabling secure, two-way information exchange between manned and unmanned platforms across the maritime battlespace. This capability enhances coordination and dramatically improves platform survivability in contested and high-threat environments.
Ultra Maritime has delivered more than 30,000 expendable torpedo countermeasures across a diverse portfolio of designs, reinforcing its position as the global leader in torpedo defense solutions.
The demand for anti-submarine warfare (ASW) has never been greater. Threat submarines proliferate and grow quieter. And international waters grow more contested.
Tackling the modern anti-submarine warfare problem requires many modalities of sensing and communication. Successful solutions must unite existing and next-generation capabilities while leveraging both manned and unmanned platforms rapidly and at scale. A distributed network across a hybrid fleet is essential to achieving maritime dominance while reducing the risk to expensive manned platforms, particularly in contested waters.
As the leader in ASW innovation for global allied navies, Ultra Maritime recognizes the many challenges modern submarine threats pose and has invested in state-of-the-art technologies that make ASW possible across a hybrid fleet.
From the Air: Through a strategic partnership, Ultra Maritime has paired its new miniaturized receivers and half size sonobuoys, including multi-static active capabilities, with a specially adapted unmanned aerial system, allowing for double the search area and higher probability of detection.
From the Surface: The internally designed Ultra Maritime Mission Pod is a self-contained towed-array-in-a-box that provides modular capability to manned and unmanned surface ships. When deployed with a decoy array as part of a layered torpedo defense system, it can be integrated within a broader network of Ultra Maritime’s shipboard sensors, decoys and countermeasures for complete undersea situational awareness.
From Undersea: Ultra Maritime has developed Sea Spear, an entirely new ASW modality. Sea Spear is a fixed, clandestinely deployable, long endurance and attritable sonar array. Via a strategic partnership, Sea Spear deploys from unmanned underwater vehicles providing towed array-like sensitivity and detection using AI-enabled processing at the tactical edge.
At Ultra Maritime, we blend innovation and proven expertise to deliver the ASW solutions required for today’s threats and tomorrow’s advantage. What was once theoretical is now possible – Ultra Maritime is redefining the future of anti-submarine warfare.
