See the Canadian systems behind submarine detection at sea. From its Dartmouth operation, Ultra Maritime develops and builds towed arrays in Canada and manufactures or integrates sonobuoys, hull-mounted sonar, containerized Sea Tracker systems, and lifecycle support for Royal Canadian Navy and allied undersea-warfare programs.
Naval undersea-warfare integration and lifecycle support
Strong evidence
Carry complex sonar and torpedo-defence systems from the yard into operational service. Ultra Maritime's River-class scope covers engineering support, spares, shore installation, sea trials, final acceptance and readiness activity for the Royal Canadian Navy's new surface-combatant fleet.
Core features
Engineering support through installation, trials and acceptance
Spares provisioning and operational-readiness activity
Canadian support for hull-mounted sonar and torpedo-defence elements
Defence applications
River-class Destroyer build and acceptance
Transition of undersea-warfare systems into operational service
Long-term fleet readiness and domestic support capacity
River-class DestroyerNaval integrationSea trialsAcceptanceSparesLifecycle support
Digital hull-mounted sonar and acoustic transducers
Strong evidence
Give a ship a continuous inner layer of underwater awareness. Sea Searcher combines digital hull-mounted sonar with acoustic-transducer engineering to support navigation, early threat detection, target identification and tracking for surface-combatant and submarine missions.
Core features
Fully digital hull-mounted-sonar architecture
Acoustic transducers designed and manufactured for ship, submarine and uncrewed-vehicle sensors
Navigation, early warning, target identification and tracking functions
Defence applications
Close-range submarine detection and tracking
Ship navigation and underwater situational awareness
Inner-layer anti-submarine warfare and torpedo defence
Extend detection beyond a ship's hull and build a clearer picture of the undersea environment. The Sea Lancer family combines active and passive towed-sonar options with an open modular architecture for detection, localization and classification across crewed and uncrewed surface or subsurface platforms.
Core features
Detection, localization and classification across the acoustic spectrum
Open modular architecture with interoperable and interchangeable subsystems
Support for bi-static and multi-static operations across onboard and offboard sensors
Defence applications
Long-range submarine and torpedo-threat detection
Surface and subsurface platform situational awareness
Crewed, optionally crewed and uncrewed anti-submarine-warfare missions
Move submarine detection beyond the ship and across a larger search area. Sea Revealer includes active, passive and environmental sonobuoy variants for deployment from aircraft or ships, with Canadian-specification products and emerging integration paths for uncrewed aircraft.
Core features
Active, passive and environmental sonobuoy variants
Canadian-specification products designed for submarine detection and localization
Integration development for uncrewed aerial vehicles
Containerized submarine detection and towed-sonar integration system
Strong evidence
Put frigate-grade submarine detection onto a wider range of ships and uncrewed platforms. Sea Tracker packages a scalable towed-sonar architecture in a standard 20-foot ISO container, giving operators a rapidly deployable way to integrate active, passive, surveillance and torpedo-defence arrays for experimentation or operational concepts.
Core features
Standard 20-foot ISO container form factor
Integration path for active, passive, surveillance and torpedo-defence towed technologies
Designed for uncrewed, optionally crewed and non-traditionally crewed platforms
Defence applications
At-sea evaluation of next-generation towed arrays
Rapid deployment of submarine detection onto available vessels
DRDC experimentation and development of future anti-submarine-warfare concepts
Sea TrackerContainerized ASW20-foot ISO containerTowed sonarActive sonarPassive sonarUncrewed surface vessels
The lifecycle scope helps bring the River-class underwater-warfare sensors and defensive systems through integration, trials and acceptance into sustained fleet readiness.
Sea Lancer's detection, localization and classification functions give operators the acoustic coverage needed to find and understand submarine and torpedo activity across wider areas.
Deployable sonobuoys distribute acoustic sensors across a search area so teams can detect, localize and track submarine contacts beyond a single ship's organic sensor range.
Sea Tracker combines rapidly deployable submarine detection with active and passive towed-array integration, making it a direct fit for underwater detection, classification, tracking and experimentation.
The system is designed for uncrewed and non-traditionally crewed platforms, creating a credible path to add persistent undersea sensing to autonomous maritime patrol concepts.
Sea Searcher Hull-Mounted Sonar & Transducers may help teams working on Sovereign defence capability areas by contributing to detection and situational awareness, autonomous and uncrewed systems, and cyber and digital operations.
Atlantic Canada Opportunities Agency · government service page
ACOA states that sonobuoys handled in Dartmouth are deployed from aircraft or ships to detect and localize submarines, mapping directly to Underwater ISR.
The official description says Sea Tracker is designed for uncrewed and non-traditionally crewed platforms, supporting a moderate derived alignment to autonomous patrol and monitoring workflows.
The official contact page lists Ultra Maritime's Canadian site at 40 Atlantic Street, Dartmouth, Nova Scotia B2Y 4N2, with the public telephone number +1 902 466 7491.
The lifecycle scope supports readiness of the River-class hull-mounted sonar and torpedo-defence elements that underpin the fleet's Underwater ISR mission.
Ultra documents the Sea Searcher family as fully digital hull-mounted sonar and acoustic transducer technology for navigation, early threat detection, target identification and tracking.
The Royal Canadian Navy lists Ultra hull-mounted and towed sonar within the ship's integrated underwater-warfare system, supporting direct relevance to Underwater ISR.
Reviewer synthesis of the public end state: Canada can build, sustain or control priority aerospace, ammunition, digital, in-service support, sensor, space, specialized manufacturing, training and uncrewed capabilities through domestic strength, trusted partnerships and sovereign access.
Ultra lists Sea Revealer sonobuoys for submarine detection and tracking, identifies Canadian-specification variants, and describes integration work for uncrewed aerial vehicles.
Because COVE describes a containerized system for at-sea evaluation of active and passive towed arrays and DRDC experimentation on future ASW concepts, the capability is a direct fit for the public Underwater ISR mission area.
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