How Much Does an Autonomous Mine Hunter Cost?

Published on July 16, 2026 | Written by Alec Pow
This article was researched using 9 sources. See our methodology and corrections policy.

An autonomous mine hunter can cost about $3.66 million for one sonar payload delivery unit or about $8.92 million for an early Knifefish package containing two underwater vehicles and support equipment. A complete naval mine-countermeasures capability can reach tens or hundreds of millions of dollars after surface carriers, command stations, launch hardware, disposal vehicles, training, upgrades, and long-run support are counted.

The public number depends on what the contract buys. Some awards cover underwater drones. Others pay for sonar payloads, unmanned surface craft, retrofits, engineering work, shore facilities, or a national fleet package. Dividing every award by a vehicle count produces misleading comparisons.

Autonomous mine-hunting costs may be quoted per underwater vehicle, two-vehicle system, payload, surface carrier, or fleet program. Sonar configuration, autonomy software, launch equipment, host-vessel changes, operator training, and disposal capability move the final budget.

Public contracts place a deployable mine-hunting component near $3.7 million to $9 million, with upgrades and full mission suites priced much higher.

How Much Does an Autonomous Mine Hunter Cost?

Jump to sections

• Minehunt Payload Delivery System allocation: about $3.66 million (at $30 per hour, earning that amount would take about 59 years of full-time work, before taxes) per unit
• Early Knifefish allocation: about $8.92 million per two-vehicle system
• Knifefish vehicle allocation with bundled equipment: about $4.46 million per UUV
• Block 1 Knifefish retrofit allocation: about $14.56 million per system
• 2025 MCM unmanned surface vehicle award: $65.71 million, with no public unit quantity

What this is in plain terms

An autonomous mine hunter searches for naval mines without sending a crewed ship directly through the suspected minefield. An underwater vehicle carries sonar, follows a planned route, records contacts, and returns data for review. Operators classify objects and map hazards from a safer location.

One drone is not always the full system. Knifefish uses two unmanned underwater vehicles with associated handling and support equipment. Other programs use an unmanned surface craft to carry sonar, tow equipment, or launch smaller vehicles. A separate neutralization vehicle may be sent to destroy a confirmed mine. These systems differ from a traditional minehunter ship because people can remain farther from the danger area. They still require operators, communications, launch crews, maintenance teams, batteries, software, transport equipment, and command facilities.

What an autonomous mine hunter costs

The lowest clear U.S. production allocation in recent public records is tied to a payload rather than a complete fleet system. In February 2025, the Navy announced $18.3 million (about 293 years of full-time work at $30 per hour) for five Minehunt Payload Delivery Systems. Dividing the award by five gives $3.66 million per unit, based on the NAVSEA production announcement.

An early Knifefish order sits higher. General Dynamics received $44.6 million for five systems containing ten underwater vehicles and support equipment. That produces an allocation of $8.92 million per system. Each system contains two vehicles, so dividing the same award by ten yields $4.46 million per vehicle. Neither result is a bare hardware price because containers, tools, handling equipment, spares, and program work remain inside the contract.

Procurement level	Public contract	Calculated allocation	What remains bundled
Minehunt payload	$18.3 million for five	$3.66 million each	Payload production items
Knifefish system	$44.6 million for five	$8.92 million each	Two UUVs and support equipment
Knifefish vehicle allocation	$44.6 million across ten UUVs	$4.46 million each	System equipment assigned across vehicles
Knifefish retrofit	$72.8 million for five systems	$14.56 million each	Engineering and Block 1 changes

Knifefish system vs drone

The Navy buys Knifefish as a deployable system rather than as ten unrelated underwater vehicles. General Dynamics confirmed that the initial five-system order contained ten UUVs, or two per system, in its production award description. The paired structure supports mission planning, vehicle rotation, maintenance, and operational availability.

Supporting equipment matters. Earlier program descriptions list launch-and-recovery equipment, a support container, spare parts, tools, and processing hardware. The container may hold charging gear, fixtures, data equipment, replacement components, and transport aids. Removing those items from the calculation would create a smaller drone estimate but would not describe a deployable capability.

The two allocation methods answer different questions. The $8.92 million (about 143 years of full-time work at $30 per hour) result helps a planner estimate one two-vehicle package. The $4.46 million result helps compare contract value with the number of underwater vehicles delivered. The second figure assigns every shared item evenly to the ten UUVs, so it cannot be used as a catalog price for one replacement vehicle.

Surface carriers and sonar payloads

The Mine Countermeasures Unmanned Surface Vehicle acts as a carrier for mission payloads. It can transport equipment through the operating area without placing sailors aboard the craft. The minehunt payload uses sonar to search for underwater threats, and a different minesweep payload produces acoustic and magnetic effects intended to trigger certain mines.

The Navy funded these pieces through separate awards. The five minehunt payload units cost $18.3 million, and four minesweep payload units cost $12.1 million. The minesweep allocation is $3.025 million per unit. These numbers do not include the same sensors, mission purpose, or production quantity, so the small difference should not be read as a fixed premium for minehunting.

Bollinger Shipyards received a $65,709,527 modification in May 2025 to produce MCM unmanned surface vehicles and incorporate engineering changes. The Defense Department contract record does not state a vessel quantity. No reliable unit figure can be calculated from that notice. The carrier, payload, software, launch hardware, and shore control equipment may appear on different contract lines even though crews use them as one mission chain.

Retrofit spending

General Dynamics later received $72.8 million to convert five Block 0 Knifefish systems, containing ten vehicles, to the Block 1 configuration. Dividing that award by five gives $14.56 million per system. That is $5.64 million above the earlier $8.92 million production allocation for each system.

The higher number does not show that a replacement Knifefish suddenly costs $14.56 million. The retrofit funded modifications to equipment already delivered. The work added deeper operating capability, better performance in complex target areas, and more precise contact localization, according to the Block 1 retrofit announcement.

Upgrade contracts can contain design work, software development, prototype parts, installation, testing, documentation, and fleet reconfiguration. Engineering spending is spread across a small number of systems, which can create a large allocation. It may still be rational if the work extends service life or adds missions that would otherwise require a new procurement. A similar distinction appears when comparing a military sea drone purchase with later sensor and command-system work.

The hidden program costs

A useful budget must cover the equipment that lets the autonomous craft leave storage, complete a mission, return safely, and deliver usable sonar data. Launch-and-recovery gear may require cranes, ramps, handling frames, deck reinforcements, power connections, and safety procedures. A host ship can need communications, mission computers, operator consoles, data links, software, and storage space.

Shore expenses can include command rooms, secure networks, mission-planning stations, battery charging, workshops, transport trailers, test equipment, spare sonar components, and technician training. Sonar processing and autonomy software also need maintenance after delivery. New threat libraries, navigation updates, cybersecurity work, and fault corrections may appear in engineering or sustainment awards rather than the original vehicle contract.

Hidden program lines include host-vessel modifications, launch equipment, command stations, sonar processing, data links, batteries, test-range work, operator courses, depot repair, transport, spares, and disposal vehicles.

Neutralization is another bill. Search vehicles identify contacts, but navies may buy separate expendable or reusable systems to destroy confirmed mines. Exail received a €60 million NATO contract covering K-Ster disposal vehicles, trainer variants, and associated equipment for Belgium and the Netherlands, according to the mine-disposal package award. The mixed package does not disclose a clean price for one neutralizer.

Three procurement cases

Payload case. Five minehunt payload units for $18.3 million produce the $3.66 million allocation. The main cost driver is sonar mission hardware. A carrier, command facility, and disposal inventory may be funded elsewhere.

Deployable-system case. Five Knifefish systems for $44.6 million produce an $8.92 million system allocation. Each package contains two underwater vehicles and shared equipment. The difference between the Knifefish allocation and the minehunt payload allocation is $8.92 million minus $3.66 million, or $5.26 million. That difference is not an integration price because the contracts cover different years, suppliers, sensors, and equipment.

National-capability case. A navy may combine unmanned surface craft, underwater drones, towed sonar, command centres, trainers, neutralizers, communications, spares, and long-run engineering. Thales reported an initial £10 million investment for Royal Navy autonomous remote command centres in December 2025 through its command-centre contract notice. That award covers one layer of the wider capability, not an entire deployable fleet.

Who this cost makes sense for

Makes sense if

• You are comparing contracts that publish both value and quantity.
• You separate UUVs, surface carriers, sonar payloads, and neutralizers.
• You label retrofit allocations as upgrade spending.
• You include command, launch, training, and sustainment in fleet planning.

Doesn’t make sense if

• You call the $3.66 million payload allocation a complete minehunting fleet.
• You divide a surface-vessel award when no quantity is published.
• You treat the $14.56 million retrofit allocation as a new-unit price.
• You assign a national program value to one underwater drone.

The strongest public planning range is about $3.7 million to $9 million for a named payload or early deployable system. Retrofit work can exceed $14 million per existing system, and national programs can go far beyond those figures. Readers comparing autonomous systems with a complete military drone program should separate the vehicle from control equipment, sensors, training, and support in both cases.

What we checked

• Checked the five-unit payload quantity and $18.3 million award.
• Confirmed the two-vehicle Knifefish structure in the first delivery report.
• Cross-referenced the retrofit quantity and scope through independent naval reporting.
• Verified the MCM surface-carrier award in the May 2025 record.

Article Highlights

• A minehunt payload allocation can be about $3.66 million.
• An early Knifefish package works out to about $8.92 million.
• One Knifefish system contains two UUVs plus shared equipment.
• A retrofit allocation reached $14.56 million per existing system.
• Surface carriers, command stations, and neutralizers are separate price lines.
• National programs can reach tens or hundreds of millions of dollars.

Answers to Common Questions

How much does one Knifefish underwater drone cost?

The early production award produces an allocation of about $4.46 million per vehicle, but shared system equipment remains inside that number.

How much does a complete Knifefish system cost?

The five-system production award works out to about $8.92 million per system. Each system contains two underwater vehicles and support equipment.

Does the autonomous surface vessel come with the sonar?

Not always under one contract. The carrier and minehunt payload can be procured through separate awards.

Why can an upgrade cost more than the original system allocation?

Retrofits can fund engineering, new hardware, software, installation, testing, documentation, and configuration changes across a small fleet.