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Sea surface · Sea surface systems

Saildrone Voyager

A 10-metre autonomous vessel for persistent coastal surveillance and seabed mapping, used in US and NATO maritime programmes.

Role & capabilities

  • Persistent maritime surveillance
  • Coastal seabed mapping
  • Remote environmental sensing
In service / use documentedIn service / use documented
Primary domain
Sea surface
System type
Uncrewed surface vessel
Developer / manufacturer
Saildrone
Origin / production countries
United States
Other names
Voyager USV
Variants / configurations
Voyager — coastal surveillance and mapping configurations
Operators / programme customers
United States Navy — documented programme use; NATO Task Force X Baltic — 2025 demonstration

Evidence & current status

Civil and military uses coexist. Demonstration participation does not establish national fleet ownership; endurance and payload power are supplier figures.

Voyager occupies the middle of Saildrone's established vessel range, carrying surveillance and survey equipment in a ten-metre hull. The current product description specifies electric propulsion assisted by a rigid wing. This makes it distinct from the larger diesel-powered Surveyor and from the smaller Explorer; figures and equipment from those platforms should not be combined.

Its defence relevance comes from persistent collection of maritime information and seafloor data. The US Navy records Voyager activity during Operation Windward Stack in 2023. Saildrone subsequently reported that four Voyagers participated in NATO's Baltic demonstration in June 2025, operating in the Gulf of Finland and western Baltic.

The vessel remains supervised through a wider operations and communications service, even though nobody needs to be aboard. Published endurance refers to the interval between service stops under suitable mission conditions. Mapping speed, electrical payload allowance and the installed sensor package describe different aspects of capability; none alone establishes performance for every customer configuration.

Sourced specifications

Figures apply to the named configuration. Maximum values are not guaranteed operating performance.

SpecificationReported valueContext & source
ConfigurationUncrewed wing-assisted surveillance and survey vesselSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Hull / propulsionElectric motor primary; wind auxiliarySupplier-published figure; configuration and operating conditions affect performance. Source ↗
Dimensions10 m length; 6 m wing height; 2 m draftSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Displacement / massNot established in the reviewed public sources.Public data gap; no estimate or neighbouring variant value substituted. Source ↗
Payload3.5 kW peak payload powerElectrical allowance, not payload mass. Source ↗
Endurance100 days between service stopsSupplier-published figure; configuration and operating conditions affect performance. Source ↗
RangeNot established in the reviewed public sources.Public data gap; no estimate or neighbouring variant value substituted. Source ↗
Speed5 knots mapping speedSurvey operating figure, not a maximum speed. Source ↗
Sea state / environmentNot established in the reviewed public sources.Public data gap; no estimate or neighbouring variant value substituted. Source ↗
SensorsRadar, infrared camera, AIS and configurable survey/environmental sensorsSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Communications / controlSatellite connectivity; autonomous vessel with remote operations supportSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Launch / deploymentNot established in the reviewed public sources.Public data gap; no estimate or neighbouring variant value substituted. Source ↗

Documented milestones

  1. Baltic demonstration reported

    Saildrone reported four Voyagers participating in the June NATO demonstration.

    Read the announcement ↗

Publication history

  • — Added sourced land and maritime coverage with domain-specific evidence and limitations.

Suggest a correction to this entry →

Follow the evidence

Source types identify who makes the claim. Programme milestones and supplier statements should be read in context.

  1. Current Voyager product specifications (opens in a new tab)Manufacturer / programme
  2. Baltic demonstration report, 7 July 2025 (opens in a new tab)Manufacturer / programme
  3. US Navy small USV fact file (opens in a new tab)Government / operator

Explore the connections

Manufacturer indexUnited States

Saildrone

Connected land and maritime programmes: Saildrone Voyager, Saildrone Surveyor, Saildrone Spectre.

Reviewed 20 Sept 2026Read
Field guideGlobal

Uncrewed surface vessels & naval drones

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