Silhouette of a submarine underwater in a dark blue sea background with a pixelated effect.
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Undersea Detection
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Persistent Undersea Awareness Across Open Ocean and Littoral Battlespaces

Autonomous systems engineered for long-endurance acoustic surveillance—delivering the information required to detect, track, and understand undersea activity across both deep-water patrol areas and complex coastal environments.

Saildrone provides persistent undersea detection using long-endurance unmanned surface vehicles (USVs) capable of integrating a variety of acoustic sensors. By combining autonomous navigation, low-noise operation, and continuous acoustic collection, Saildrone delivers scalable subsurface intelligence to support anti-submarine warfare (ASW), defense of critical undersea infrastructure (CUI), maritime security, and deterrence—at a fraction of the cost and risk of traditional crewed platforms.

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What Saildrone Delivers
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Mission‑Ready Solutions for Persistent ASW and Undersea Surveillance

Effective anti-submarine warfare and undersea security depend on continuous acoustic awareness across vast and complex maritime regions. Saildrone extends undersea detection into areas where crewed ships and aircraft are constrained by cost, capacity, endurance, or risk.

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Persistent detection and tracking of submarines and undersea contacts

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Long-duration acoustic collection

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Autonomous patrol across chokepoints, approaches, transit lanes, open ocean, and littoral environments

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Wide-area undersea monitoring that complements crewed ASW forces

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Sensor & Data Architecture
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Integrated Acoustic Systems for Subsurface Intelligence

Saildrone USVs are engineered to integrate a range of passive acoustic sensors while maintaining stable, low-noise operation in both open-ocean and nearshore environments. Autonomous navigation and piloting enable the precise control and operations required to execute this challenging mission.

Towed Acoustic Arrays

Support for a variety of array configurations enables a tailored solution specific to the operating environment. Not all threats require the same exquisite sensors, and Saildrone integrates the most cost-effective solution for the threats.

Low-noise Platform Design

Low-noise operating mode minimizes platform self-noise, enhancing acoustic performance, especially in shallow water and cluttered acoustic environments.

Autonomous Navigation & Line-keeping

Precision control supports corridor surveys, barrier operations, and precise patrol patterns while maintaining acoustic payload performance.

Onboard Processing & Data Management

Continuous acoustic collection with secure handling and transmission for downstream analysis.

Secure Data Delivery

Encrypted data transfer to Saildrone Mission Portal or direct integration with acoustic processing and C2 systems.

Autonomous Saildrone with an orange sail and Danish flag floating on choppy ocean water under gray sky.
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WHY SAILDRONE
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Proven Operations in Complex and High-Risk Maritime Environments

Endurance without refueling

The Saildrone Wing, in addition to augmenting propulsion systems, enables months-long acoustic surveillance missions without fuel logistics or crew rotations.

Persistent coverage at lower cost

Autonomous operations dramatically reduce the cost per day of undersea monitoring compared to crewed ships and aircraft.

Operational resilience

Saildrone USVs operate in remote theaters and extreme sea states where sustained crewed operations are costly or impractical.

Scalable and distributed coverage

Deploy individual systems or coordinated fleets to monitor wide areas, chokepoints, and priority approaches.

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Recent missions
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Demonstrated Performance Supporting Global Maritime Security

Saildrone platforms have demonstrated reliable performance in support of maritime security programs for over a decade, operating persistently across diverse ocean regions and complex operational conditions.

Operationalizing Saildrone to Counter Drug Trafficking and Illegal Fishing

The Navy brought unmanned systems to US Fourth Fleet to support long-term operations that counter drug trafficking and illegal fishing.

12,500 sq nm

Total area covered

116,000

Unique contacts detected

$4.25

Cost per sq nm per day

Enhancing Border Monitoring with Persistent MDA

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Number of vehicles

30,000

Number of detections

94%

Operational efficiency

Revolutionizing Cable Route Surveys with USVs

A landmark mission proving autonomous vehicles can match traditional survey performance while cutting costs, risks, and emissions in deep-ocean mapping.

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Number of Surveyor USVs

4,500 km

Area covered

5,500 meters

Max depth surveyed