Sub-bottom Profiling
Autonomous Subsurface Intelligence for Protecting Critical Infrastructure
Autonomous systems engineered to map the shallow subsurface with precision—revealing buried features, threats, and anomalies to safeguard national security interests and undersea infrastructure.

Saildrone delivers high-quality sub-bottom profiling using long-endurance uncrewed surface vehicles equipped with advanced acoustic systems. By combining autonomous navigation with continuous subsurface imaging, Saildrone exposes sediment layers, buried objects, and infrastructure pathways—providing defense and security operators with the intelligence needed to protect vital maritime assets.
WHAT SAILDRONE DELIVERS
Mission-ready Solutions for Subsea Security and Threat Detection
Saildrone provides high-resolution acoustic characterization of the seabed and shallow subsurface, enabling defense and national-security partners to understand what lies beneath critical waterways and infrastructure corridors. Purpose-built for persistence, Saildrone Voyager delivers reliable subsurface intelligence even in contested or resource-constrained regions.
- High-resolution imaging of sediment layers and shallow subsurface structure
- Detection of buried objects, debris, and manmade infrastructure
- Autonomous corridor mapping of pipelines, cables, and critical chokepoints
- Wide-area subsurface coverage without crewed-asset risk
- Continuous intelligence flow for security, engineering, and mission analysis
Whether protecting subsea infrastructure, screening for anomalies, or building domain awareness below the seafloor, Saildrone systems deliver actionable insights into the subsurface.

SENSOR & DATA ARCHITECTURE
Integrated Acoustic Systems for Subsurface Intelligence
Saildrone Voyager carries an industry-standard sub-bottom profiling payload combining acoustic transducers, precision navigation, and onboard automation. These systems operate continuously to deliver clear subsurface imagery along priority routes and sensitive corridors.

Sub-bottom Profiler (SBP)
High-resolution acoustic penetration for mapping sediment layers, buried features, infrastructure pathways, and potential tampering indicators.
Positioning & Motion Reference
GNSS, inertial sensors, and real-time motion compensation ensure data fidelity in dynamic sea states without dependence on GPS.
Environmental Measurements
Temperature, salinity, and depth measurements support acoustic interpretation and situational understanding.
Autonomous Navigation
Pattern-of-life adherence, corridor mapping, and precision line-keeping without human steering.
Data Delivery
Encrypted transfer to the Saildrone Mission Portal or integration into your existing geospatial or subsurface-analysis workflow.
WHY SAILDRONE
Proven in Sensitive, High-value Maritime Regions
Endurance without refueling
The Saildrone Wing, in addition to augmenting propulsion systems, supports long-duration profiling missions that reduce crew exposure and extend operational reach.
Precision in challenging conditions
Voyager’s design enables stable acoustic acquisition in demanding sea states and congested maritime regions.
Access to constrained or sensitive areas
Saildrone USVs can safely survey infrastructure corridors, shallow approaches, and restricted waters unsuitable for large platforms.
Demonstrated regional impact
Saildrone conducted sub-bottom profiling in the Baltic Sea—including along portions of the Nord Stream pipeline corridor—as part of a demonstration of regional defense and infrastructure security capabilities.



