The U.S. Navy is making an aggressive push toward "offensive" mine warfare designed to attack and destroy enemy ships and submarines with undersea explosives - all while preparing a complex suite of interwoven mine countermeasure technologies.

“We will produce a mine warfare plan to include offensive mine lines of effort. We are asking the CNO (Chief of Naval Operations) to sign in the next 90 days,” Maj. Gen. David Coffman, Navy Director of Expeditionary Warfare, told an audience recently at the Surface Naval Association Symposium.

Mine technology, including both shallow and deep water mines, is not only advancing quickly but also rapidly proliferating around the world, therefore reaching a wider swath of potential US enemies. Advances in offensive sea mine technology are something the U.S. plans to leverage itself while working to sharpen its focus on countering the growing mix of enemy mine threats.

Greater volumes of advanced “deep water” mines represent an area of concern for Coffman and other maritime warfare leaders, who recognize that the weapons are not restricted to littoral areas - but also substantial threats when it comes open or “blue” water warfare.

While it appears that the Mine Warfare Plan is currently being refined and reviewed by Navy leadership, Coffman indicated that the service’s offensive and defensive mine warfare strategy will seek to leverage U.S. undersea technology superiority.

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“We are making a strong push toward offensive mining using an undersea capability. We are drawing upon the CNOs wisdom in exploiting what we have strength in. We know we have dominance undersea,” Coffman said.

This approach is likely to draw upon some of the fundamentals of U.S. undersea technology, such as advanced sonar, quieting technologies and submarine missile launch tubes increasingly able to launch mine-detecting drones.

Offensive mine technology will consist of a mixture of more detectable and hidden weapons, each consisting of different combat tactics.

“Covert is good and overt is good too. We need a lot of arrows in the quiver because there are different warfighting scenarios,” Coffman said.

Following Coffman’s reasoning, it would seem that more visible or “find-able” mines have a strategic and operational value - if less covert. Naturally, they could be missed by an enemy or overlooked in some way, yet they certainly can function as weapons intended to “deny” an enemy access to a strategically vital location or asset. Covert mines, by comparison, would likely function with the more narrowly configured intent to avoid detection and simply “explode” an enemy.

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There are a variety of ways in which this emerging Navy’s mine-warfare strategy is already becoming more manifest, to include video-guided undersea drone explosives, unmanned weapons and sensors and advanced airborne countermine technologies engineered to destroy mines beneath the surface.

This strategy and its corresponding warfare technologies will in part be executed by elements of the Navy’s now-in-development Mine Countermeasures (MCM) Mission Package for the Littoral Combat Ship. This includes specially configured MH-60 helicopters, deck-mounted drones such as the Fire Scout, surface sweeping drone boats such as Textron’s Unmanned Influence Sweep System and deep diving drones engineered to detect mines buried beneath the ocean floor - such as Knifefish.

The overall MCM system, integrating these and other technologies, is slated to be operational by 2022; however, several elements of the system are ready for war today, service developers said.

“For MCM, we can field the aviation mission packages on the even (Independence variants of the LCS fleet) ships today,” Capt. Ted Zobel, Mission Modules program manager, told Warrior Maven following his presentation at SNA.

The air assets, such as the Navy’s Airborne Mine-Neutralization System and Airborne Laser Mine Detection Systems, hinge upon successful coordination and command control synergy with surface and undersea assets. Naval Sea Systems Command recently announced it has “verified” communications links between an Independence variant of the LCS and both the surface sweeping UISS and Knifefish mine-detecting drone.

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The Navy now operates a series of test ranges for mine warfare, to include locations in Panama City, Fla., and San Diego, Zobel said.

“For each one of the program of records we put together, the mission package goes through its own test. We lay minefields and go to work against them,” he told reporters at the Surface Naval Association Symposium.

The development of MCM technologies is, by design, intended to lay the foundation for new mine warfare systems in future years. The effort, Zobel said, is called "Mission Package Next."

“We talk with the research sponsors regularly about “Mission Package Next” and what it might entail. We scan industry to see what is available, but right now we are focused on the three mission packages we have,” Zobel explained.

Airborne Laser Mine Detection System

Instead of purely relying upon more narrowly configured, mechanized or towed mine detection systems, the Navy has been developing airborne laser systems to expand the surface area from which mine detection takes place.

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The system, called Airborne Laser Mine Detection System (ALMDS) enables shallow-water warships such as the LCS have a much safer sphere of operations as commanders will have much greater advanced warning of mine-cluttered areas.

Northrop and Navy developers are looking at ways the ALMDS can be further enhanced through ongoing modernization efforts, such as current work to integrate AI.

“We are looking at automating the entire kill chain for MCM. Now the ALMDS flies on an MH-60. Perhaps we can get that into a smaller form factor and put it on the Fire Scout,” Kevin Knowles, Director of Business Development for LCS, Northrop Grumman, told Warrior Maven in an interview at SNA.

The ALMDS pod is mechanically attached to the MH-60S with a standard Bomb Rack Unit 14 mount and electrically via a primary and auxiliary umbilical cable to the operator console, according to a statement from the system’s maker, Northrop Grumman.

“It does not use any bombs. It flies at a certain altitude and a certain speed. The laser emits beams at a certain rate. Cameras underneath the helicopter receive reflections back from the water. The reflections are processed to create images displayed on a common console on the helicopter,” Jason Cook, the Navy’s Assistant Program Manager, ALMDS, told Warrior Maven in an interview last year about the system.

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Cook explained that the camera or receiver on the helicopter is called a Streak Tube Imaging LIDAR (STIL). The laser is released in a fan pattern, and photons received back are transferred into electrons, creating a camera-like image rendering.

Northrop information on ALMDS further specifies that the system can operate in both day and night operations without stopping or towing equipment in the water.

“Allowing untethered operations, it can attain high area search rates. This design uses the forward motion of the aircraft to generate image data negating the requirement for complex scanning mechanisms and ensuring high system reliability,” Northrop information states.

Having this technology operational, it seems, offers a few new strategic nuances. First and foremost, detecting mines more quickly and at further ranges, of course, makes the LCS much more survivable. It will be able to pursue attack, anti-submarine and reconnaissance missions with a much lower risk of mine-attack. Furthermore, identifying the location of mines at greater distances brings the added advantage of enabling lower-risk small boat missions to approach target areas for shore missions, surface attack or recon.

Also, given that attack submarines are routinely able to launch attacks, conduct recon and access enemy areas in closer proximity to island and coastal areas, compared with many deeper draft larger surface combatants, ALMDS could measurably improve submarine operations.

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Finally, given that the LCS is engineered for both autonomous and aggregated operations, ALMDS could provide occasion for the ship to alert other surface and undersea vessels about the location of enemy mines. In fact, Northrop writes that ALMDS provides accurate target geo-location to support follow on neutralization of the detected mines.

Some of the technical details of the system are further delineated in a research paper written by Arete Associates – a science and technology consulting firm with a history of supporting entities such as the Office of Naval Research and the Air Force.

“A high-resolution 3-D image of the scene is produced from multiple sequential frames formed by repetitively pulsing the laser in synchrony with the CCD (Charge Coupled Device) frame rate as an airborne platform "push broom" scans or as a single-axis scanner on a ground-based platform scans the laser fan beam over the scene,” the Arete Associates essay titled “Streak Tube Imaging LIDAR For 3-D Imaging of Terrestrial Targets, writes. “The backscattered light from the objects and the terrain intersecting the fan beam is imaged by a lens.”

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STIL technology, while only recently becoming operational with ALMDS, has been in development as a maritime surveillance system for many years. A 2003 study from the Naval Surface Warfare Center cites how “pulsed light” sent out from a three-dimensional electro-optic sensor STIL system can “identify objects of interest on the ocean bottom.” -- For Warrior Maven's Previous Story on ALMDS CLICK HERE –

Airborne Mine Neutralization System

The Navy can now use sonar and video-guided underwater warheads to attack and destroy enemy sea mines at the bottom of the ocean, improving protection for submarines and surface ships while bringing new combat ability to maritime war operations, service officials said.

Airborne Mine Neutralization System “lowers a mothership into the water from a helicopter and then deploys mini-torpedoes that are on a fiber-optic cable ... which swims up to a mine and explodes,” Knowles said.

Operating from an MH-60S maritime helicopter, the Airborne Mine Neutralization System (AMNS) is designed to enable Carrier Strike Groups, Expeditionary Strike Groups and Amphibious attack missions to improve combat access while lowering risk to surface ships and sailors. -- For Warrior Maven's Previous Story on AMNS CLICK HERE –

The AMNS, also called the Archer Fish, receives surveillance information from a range of different Navy systems before it reconfirms the target, lowers beneath the surface, and destroys the mine.

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The system consists of a Load Handling System (LHS) and destructor, or warhead. The LHS, which is used as an interface between the explosive destructor and common console on board the helicopter, can carry up to four destructors.

The destructor is equipped with a sonar system, video camera and light to confirm the identified enemy mine; it connects with the common console through a fiber-optic data link, Navy officials said. The LHS contains all the data-processing hardware and software, developers explain.

“The destructor is negatively buoyant, has six degrees of motion, can maintain a hover position and can be operated in either automatic or manual mode. The destructor can monitor depth and relative distance from the bottom and has the ability to avoid bottom plowing. The destructor's position is determined by an Integrated Track Point II acoustic tracking system contained in the LHS,” NAVSEA Spokesman Alan Baribeau told Warrior Maven last year - for a report on the system.

The abundance and sheer variety of mine threats can also make detection more challenging. Some so-called “bottom mines” can be buried or shallow-water mines easily triggered by surface ships or submarines. Moored mines, however, often tethered to the ocean floor, can be found in deeper parts of the water column. They can linger below the surface or possibly operate at much greater depths to target deeper draft ships, according to a 2014 NATO essay called “Naval Mines and Countermeasures.”

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“The explosive and detonating mechanism (of moored mines) is contained in a buoyant metal or plastic shell. The depth below the surface at which the mine floats can be set so that only deep draft vessels such as aircraft carriers, battleships or large cargo ships are at risk,” the NATO paper writes.

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-- Some of the background material on ALMDS and AMNS has previously been published in Warrior Maven reports -