Sixteen Saildrone Voyager unmanned surface vessels will operate in the Great Lakes and the North Atlantic this year under a Coast Guard contract meant to expand persistent maritime surveillance and close gaps in visibility, officials said.
Saildrone Voyager capabilities and mission role
The Voyager is designed for persistent coastal surveillance and nearshore mapping while remaining at sea for roughly 100 days at a time, Saildrone says. Saildrone President John Mustin told Breaking Defense that the deployed Voyagers are intended to “close visibility gaps — allowing Coast Guard personnel to tackle rescue and interdiction missions.” In the Great Lakes the unmanned vessels will support border security by monitoring and flagging suspicious activity; in the North Atlantic they will assist Coast Guard efforts to counter illegal fishing.
The $15.5 million contract, timing, and geographic scope
The initiative stems from a $15.5 million contract signed in March, the Coast Guard said in a news release. The mission kicked off in May and is slated to continue through October. Saildrone has partnered with the Coast Guard before, dating back to 2023, conducting operations in the service’s Southwest and Southeast districts, which encompass the Caribbean and the Pacific Ocean. Mustin said other areas — including near Alaska in the Northwest and parts of the Pacific near Guam — could be applicable for future partnerships.
Northern waters, environmental challenges, and the argument for autonomy
Mustin emphasized that northern waters pose different environmental challenges than the regions where Saildrone has already worked. “A wonderful benefit of autonomy is in areas where the sea state is dramatic and or the weather is terrible, we don’t get seasick, we don’t get tired, we don’t have to,” Mustin said. “We’re not subject to crew rest, so we can cover areas that would be very challenging based on environmentals … our drones are able to stay out there for hundreds of days at a time and provide this persistent presence.” He described the capability as a way to sustain surveillance in places where human-crewed assets face limits driven by weather and crew endurance.
How the Coast Guard plans to use the Voyagers
According to Saildrone and the Coast Guard announcements, the Voyagers will act as a persistent surveillance layer that identifies and flags suspicious behavior for human responders to act upon. Mustin characterized the shift as moving the service “from a reactive model to now a proactive, persistent surveillance net,” adding that autonomy allows the Coast Guard “to focus on those things that only they can do.” He framed the technology as a force multiplier that can offload routine or fuel-intensive patrolling — “rather than wasting precious cycles or fuel just on scouring open ocean, we can be there all the time in that persistent surveillance net, and we can identify suspicious behavior that allows them to focus on just the things that require their attention,” Mustin said.
Saildrone’s fleet and the new Spectre platform
The Voyager is one of several unmanned surface vessels Saildrone produces. In April the company unveiled a new medium unmanned surface vessel called the Spectre that Saildrone says is outfitted to conduct anti-submarine warfare (AWS) and intelligence, surveillance, and reconnaissance (ISR) operations. The company framed the current Voyager deployment as part of an effort to demonstrate responsiveness and adapt mission profiles based on Coast Guard feedback: “Our hope is that we continue to demonstrate value and we can continue to demonstrate that we are a very responsive partner, and we will tailor not only the kinds of missions we perform, but the way we perform them based on their feedback,” Mustin said.
What this means for the Coast Guard, regional maritime operators, and procurement leaders
- The Coast Guard: The service will gain a persistent sensing layer intended to flag suspicious activity and reduce fuel and crew hours tied to routine patrols; the deployment runs through October under the current contract.
- Regional maritime operators and fisheries enforcement: Voyagers in the North Atlantic are positioned to augment efforts to counter illegal fishing by providing continuous monitoring and behavior detection that can direct crewed assets to specific incidents.
- Procurement leaders: The $15.5 million, limited-duration contract and Saildrone’s stated willingness to tailor missions offer a near-term proof-of-concept and a potential model for follow-on buys if the technology meets operational expectations in harsher northern conditions.
The program’s near-term metrics are straightforward: persistence, detection, and the ability to reduce routine sorties. The immediate test will be whether Voyagers operating from May through October in the Great Lakes and North Atlantic can deliver useful, actionable cues for human responders in environments that Saildrone describes as markedly different from its earlier work in southern waters. Saildrone and the Coast Guard have framed this deployment as the next step in a partnership that began in 2023; whether the effort expands toward Alaska or the western Pacific will depend on the operational evidence collected during this summer’s run.
