Off the Deck

Off the Deck
Showing posts with label Mine Warfare. Show all posts
Showing posts with label Mine Warfare. Show all posts

Sunday, March 12, 2023

"Sea Mine Warfare"

Korean War quote about Wonson: “The U.S. Navy has lost control of the seas in Korean waters to a nation without a Navy, using pre-World War I weapons, laid by vessels that were utilized at the time of the birth of Christ.”Rear Admiral Allen “Hoke” Smith.

What happens if a modern nation takes sea mines seriously?

See Chinese Mine Warfare: A PLA Navy 'Assassin's Mace' Capability(pdf) (2009):

.

While photos of a first Chinese carrier will no doubt cause a stir, the Chinese navy has in recent times focused much attention upon a decidedly more mundane and nonphotogenic arena of naval warfare: sea mines. This focus has, in combination with other asymmetric forms of naval warfare, had a significant impact on the balance of power in East Asia.

People’s Liberation Army Navy (PLAN) strategists contend that sea mines are “easy to lay and difficult to sweep; their concealment potential is strong; their destructive power is high; and the threat value is long-lasting.”3 Key objectives for a Chinese offensive mine strategy would be “blockading enemy bases, harbors and sea lanes; destroying enemy sea transport capabilities; attacking or restricting warship mobility; and crippling and exhausting enemy combat strength.”

While somewhat dated, the analysis holds true. Mines are easy to lay, hard to clear, and potential show stoppers.

Tuesday, June 13, 2017

More UAVS: Mine Detection System

The U.S. Navy's Office of Naval Research reports Navy Tests New Unmanned Mine-Detection System:
During a recent technology demonstration at Marine Corps Base Camp Pendleton, Dr.
ONR photo
Rosemarie Oelrich and Dr. Cory Stephanson unveiled a new way to detect buried and submerged mines.

Oelrich, a scientist at Naval Surface Warfare Center (NSWC) Carderock’s Combatant Craft Division, and Stephanson, president and chief executive officer of Broadband Discovery Systems (BDS), stared at an Android tablet showing search data from an unmanned aerial drone they had just flown. The device’s screen glowed as a green fluorescent map appeared, splashed with red clusters of varying sizes and shapes.

“See that large cluster?” asked Stephanson. “That’s the dummy mine we buried. The smaller blotches near it are construction rebar we found nearby. The drone detected and localized these items quickly and accurately, which would be extremely valuable in a real combat scenario.”

Oelrich and Stephanson were testing the new Mine Warfare Rapid Assessment Capability (MIW RAC) system. Sponsored by the Office of Naval Research’s (ONR) TechSolutions program, MIW RAC consists of a one-pound quadcopter outfitted with an ultra-sensitive magnetometer sensor system to detect mines and provide real-time search data to a handheld Android device.

“This technology will help Sailors and Marines who are approaching a beachfront to rapidly clear, or at least determine the location of, mines or other hazards that are in their way,” said ONR Command Master Chief Matt Matteson. “It could potentially save a lot of lives.”

MIW RAC is a portable, remote-controlled system that can detect buried or underwater mines during amphibious beach landings. It’s designed to help explosive ordnance disposal teams quickly find mines and dangerous metal obstacles within coastal surf zones and very-shallow-water zones. MIW RAC would provide a new, real-time aerial complement to existing underwater mine-detection capabilities.

“Everyone wants to know where they are going and what they are about to get into,” said Oelrich, who is overseeing the development of MIW RAC. “It helps to have a rapid capability to just fly something in the air and survey an area before you put troops on the ground or bring a vessel ashore.”

While the quadcopter and tablet device are available commercially, the heart of MIW RAC is its proprietary magnetometer sensor suite—which has an extensive detection range and uses complex algorithms to differentiate between various types of objects.

MIW RAC originated in 2015, when the Navy Expeditionary Combat Command (NECC) sent a request to ONR’s TechSolutions program for a portable system that could detect potential hazards in surf zones, be easy for warfighters to use and fit diverse platforms. TechSolutions is ONR’s rapid-response science and technology program that develops prototype technologies to address problems voiced by Sailors and Marines, usually within 12-18 months.

With TechSolutions guidance, NECC partnered with NSWC Carderock, Combat Direction Systems Activity Dam Neck and two commercial companies—BDS and Physical Sciences, Inc.—to develop the components of MIW RAC.

“We took our inspiration from a stationary scanning system developed by BDS,” said Oelrich. “It was sensitive enough to not only detect weapons, but identify the hidden location of the object on a person and the angle in which it was oriented—a knife in a front pocket or gun turned sideways, for example.

“We flipped that concept on its head,” she continued. “Instead of a stationary system detecting moving objects, we have a moving system detecting relatively stationary objects.”

Thursday, January 12, 2017

U.S. Counter- Mine Warfare: Getting a New Package to the Fleet

Interesting USNI News report from Megan Eckstein Navy Finalizing Counter-Mine Package for Littoral Combat Ships:
Northrup Grumman photo H-60S with ALMDS
The initial package would include the MH-60S helicopter towing the Airborne Laser Mine Detection System (ALMDS) and Airborne Mine Neutralization System (AMNS) – all three of which reached initial operational capability in November – and an unmanned vehicle to tow the AN/AQS-20A sonar. This initial package provides detect-to-engage capabilities, but eventually the service will also add a buried- and high-clutter bottom search capability, a beach and surf zone search capability, a near-surface neutralizer and a minesweeper, with each being added as they wrap up development and test.
Raytheon photo AMNS

“We want to make the systems as flexible as possible, so while they will remain tied to the LCS as a capability LCS will have, we want to be able to put them aboard other ships if required to provide additional capacity, or capability in areas where the LCS aren’t currently” deployed, he said.
“The intent is to make [the package] as expeditionary as possible so we could deploy it rapidly. Now in some places where we know there might be a threat we can preposition the gear, either to await a ship or (on a ship) if we have a ship there. For instance, the ESBs, we have one deploying to 5th Fleet [area of responsibility] in 2017, that would be a likely candidate for additional integration.”
***
As for shore-based expeditionary mine countermeasures, there’s reason to believe an
Mk18, Mod 2 "Kingfish" USN photo by MC2 Blake Midnight
operator ashore could conduct blue-water mine countermeasures operations – at a greater distance than the shore-based expeditionary explosive ordnance disposal and mine countermeasures units using the Mk 18 Mod 2 unmanned vehicle for harbor and other near-shore activities.


“Right now the control systems are tied to the consoles aboard the LCS, both classes of LCS, but they are potentially deployable in a mobile system,” Owens explained.
“We had one (mobile console) we experimented with in exercise Unmanned Warrior in Scotland a few months ago using different (unmanned) systems, but the concept is viable. We put together a command and control suite inside what really is a 20-foot container unit and were able to control a variety of surface, undersurface and air platforms simultaneously.”
More about ALMDS here.

More about AMNS here.

Earlier post on "Unmanned Warrior" exercise here.

Cool.

Tuesday, November 15, 2016

Fun with Drones: Autonomous Undersea Vehicles Operating Cooperatively

The Ocean News headline understates the import of the exercise in Iver3-AUV Plays Active Role in Unmanned Warrior (UW) 2016
***
Multiple Iver AUVs were put in active roles by members of the Royal Navy, US Navy and the Defense Research and Development Canada (DRDC). The Iver-3 systems were used in a segment of Unmanned Warrior known as Hell Bay, during which groups of underwater vehicles demonstrate how they collaborate to carry out autonomous tasks like target location and recognition.

Several of the Iver3 AUVs were equipped with SeeByte Neptune, an open architecture enabling autonomous multivehicle collaboration. Designed to enhance Mine Counter-Measure (MCM) missions, the system offers launch and recovery software management, water column flight management, static and dynamic exclusion zones, survey and re-acquire tasks, and real-time progress and status monitoring. The Iver3 MCM systems come equipped with high resolution side-scan sonar, RDI Explorer DVL w/ADCP, WHOI Micro modem, Iridium Communications and an operator console.
***
The ON report is based on a Iver3-AUV manufacturer, OceanServer press release.

This is very cool stuff. Autonomous cooperation and deconfliction of the water space are vital for future ops.

More, please.

Thursday, October 16, 2014

Fighting Sea Mines: Long Range AUV Endurance Run

NRL photo
A prototype Autonomous Underwater Vehicle (AUV) sets an endurance records that may help the U.S. Navy counter-sea mine operations and, maybe, other operations. Navy 'Mine-Hunter' AUV Sets Mission Endurance Record:
The U.S. Naval Research Laboratory's (NRL) Acoustics Division, with Bluefin Robotics, executed a record setting 507 kilometer (315 mile), long-endurance autonomy research mission using its heavyweight-class mine countermeasures autonomous underwater vehicle (AUV), Reliant.
***
Navigating from the waters of Boston Harbor, the 20 foot long, 1,350 pound, 'heavyweight' AUV traveled south past Cape Cod, headed west through Nantucket Sound between Martha's Vineyard and the mainland, and then continued south of Long Island to the approaches to New York City. The fully autonomous endurance mission was designed to push the boundaries of traditional AUVs with the objective to uncover the challenges and requirements for significantly extending AUV endurance for new applications.
***
"This record multi-day research mission demonstrates the state-of-the-art autonomy methods and capabilities of the Reliant AUV," said Dr. Brian Houston, head, NRL Physical Acoustics Branch. "It is our first step in developing a robust autonomy paradigm for AUVs in long endurance scenarios."
***
Houston and his team are developing AUV based technologies that include extension of the Knifefish technology (as part of the Office of Naval Research Future Naval Capabilities program), increasing ranges for mine countermeasure (MCM) operations, and advancing autonomy for AUVs. Houston's team is also applying this new technology to shallow water Anti-Submarine Warfare (ASW). This more recent development provides the Navy with the technical foundation for high performance detection and classification of difficult ASW targets using active sonar on AUVs in challenging environments.

The purpose of the system is to address the Navy's need to reliably detect and identify undersea volume and bottom mines in high-clutter environments with low false alarm rates. The Knifefish system is a part of the Littoral Combat Ship (LCS) mine countermeasure (MCM) mission package targeted to reduce risks to personnel by operating in potential minefield regions as an off-board sensor, allowing host ships to remain at safe distances outside minefield boundaries.
NRL Image
 
Mine neutralization operations are by their nature generally slow. Tools like this might speed things up in the right circumstances.

And you gotta love that teaser about "ASW . . . in challenging environments."

Tuesday, August 12, 2014

U.S. Navy's Asymmetric Payloads: "Mine and Undersea Warfare for the Future"

An interesting free article from the U.S. Naval Institute's Proceedings, Mine and Undersea Warfare for the Future by Joshua J. Edwards and Captain Dennis M. Gallagher, U.S. Navy:
Vice Admiral Conner recognizes that the United States’ and its allies’ current and future interests in national security will depend on a survivable, lethal undersea force. Such a force will consist of smart payloads and unmanned vehicles in an affordable manner to satisfy financial and industrial constraints. Technical advances have opened a floodgate of possibilities for asymmetric solutions, and clandestine, unmanned offensive mining is just the beginning. The Office of Naval Research (ONR) has invested in an affordable idea to minimizing risk and task to traditional forces.

The Advanced Undersea Weapon System (AUWS) is a group of unmanned systems (sensors, effectors, communications, and vehicles) that can be pre-positioned to autonomously and persistently influence the adversary at a time and place of our choosing. The ONR capabilities are specific components of the AUWS program currently being developed in conjunction with a large unmanned undersea vehicle (UUV), a relatively few miniature torpedoes, and many distributed mine sensors to address the threat of adversary ships and submarines. The AUWS will give commanders the ability to deploy sensors and weapon nodes as a minefield while maintaining the capability to remotely activate and deactivate the weapons. It will also maintain positive control of lethal weapons throughout the operation to ensure the ability to recover unused weapons when desired. The AUWS is a lower-cost force multiplier that will force adversaries to invest in mine-countermeasures capabilities.

This concept provides asymmetric clandestine solutions that will free traditional platforms to be more effectively employed in a capacity for which they were designed. The AUWS provides commanders with unique operational and tactical options in contested waters without regard to air superiority or water depth, freeing them to act aggressively with autonomous inexpensive tools. Its modular design will allow operators to integrate a wide variety of sensors and weapons, thus tailoring the system for specific missions. Sensors of choice may include short-, mid-, and long-range devices. Kinetic options include submarine-launched mobile mine (SLMM) warheads, torpedoes (CRAW or Mk-54), AIM-9X missile, and projectile explosives. Commanders may also apply deliveries to distort an adversary’s tactical picture through deception (decoys, noisemakers, etc.), ISR packages, and real-time intelligence. The AUWS may be delivered from surface ships, submarines, or aircraft, or it may self-deploy from a friendly port within range. Unmanned vehicles to transport AUWS deliveries may be reusable or expendable.

While the initial focus will be offensive mining, future AUWS missions will include defensive mining, antisubmarine, antisurface, and antiair warfare, intelligence, surveillance. and reconnaissance, pre-positioning of electronic-warfare and strike assets, supporting protective safe havens for resupply, and political leverage through deterrence. This modular architecture allows warfighters, military planners, and engineers to work symbiotically to maximize current capabilities while simultaneously developing new configurations of the AUWS.***
There is discussion of a DARPA approach here:
No matter how capable, even the most advanced vessel can only be in one place at a time. U.S. Navy assets must cover vast regions of interest around the globe even as force reductions and fiscal constraints continue to shrink fleet sizes. To maintain advantage over adversaries, U.S. Naval forces need to project key capabilities in multiple locations at once, without the time and expense of building new vessels to deliver those capabilities.

DARPA initiated the Hydra program to help address these challenges. Hydra aims to develop a distributed undersea network of unmanned payloads and platforms to complement manned vessels. The system would innovatively integrate existing and emerging technologies to deliver various capabilities above, on and below the ocean’s surface. By separating capabilities from the traditional platforms that deliver them, Hydra would serve as a force multiplier, enabling faster, scalable and more cost-effective deployment of assets wherever needed.

Hydra intends to develop modular payloads that would provide key capabilities, including Intelligence, Surveillance and Reconnaissance (ISR) and Mine Counter-Measures (MCM). Each payload module would plug into a standardized enclosure that would securely transport, house and launch various payloads, while sustaining payload functionality for weeks to months. The Hydra system would emphasize scalability, rapid reconfiguration and maximization of payload. Naval forces could deliver the Hydra system by ship, submarine or airplane to littoral ocean zones (shallow international waters near shorelines).
More here:
“The climate of budget austerity runs up against an uncertain security environment that includes natural disasters, piracy, ungoverned states and the proliferation of sophisticated defense technologies,” said Scott Littlefield, DARPA program manager. “An unmanned technology infrastructure staged below the oceans’ surface could relieve some of that resource strain and expand military capabilities in this increasingly challenging space.”
Not every dangerous weapon needs to be . . . large, expensive and . . . dumb.

UPDATE: A NAVSEA presentation:

Developments in Mining by lawofsea

Tuesday, January 22, 2013

One more hit for the Littoral Combat Ship - Assigned helicopters can't tow the minesweeping gear for LCS MIW ops

Mine sweeping helicopters used by the U.S. Navy have been big honking MH-53E's with three engines and huge rotors.

                               An MH-53E Sea Dragon conducts a mine sweeping exercise.                                                                      U.S. Navy photo by Chief Mass Communication Specialist Martens
The plan was to replace them with a "kit" for the small MH-60S birds, which could then be flown off the Littoral Combat Ships as part of the "mine warfare package."

Well, it won't be happening.

As reported by Janes at MH-60S underpowered for MCM towing operations, report finds:
MH-60S AMCM version (Sikorsky photo)
The US Navy's (USN's) future airborne mine countermeasure (AMCM) MH-60S helicopter is unable to tow the minehunting sonar or minesweeping system forming part of the Littoral Combat Ship (LCS) mine countermeasures module (MCM) mission module, the Pentagon's Director of Operational Test and Evaluation (DOT and E) revealed in his annual report, released 15 January.

"The navy determined the MH-60S helicopter cannot safely tow the AN/AQS-20A Sonar Mine Detecting Set (AQS-20A) or the Organic Airborne Sweep and Influence System (OASIS) because the helicopter is underpowered for these operations," read the Office of the Secretary of Defense's Fiscal Year 2012 report from DOT and E, Dr J Michael Gilmore.

"The MH-60S helicopter will no longer be assigned these missions operating from any ship, including LCS," it added.
One form of LCS
Among other things, there are many MH-60 pilots breathing a sign of relief that this mission may pass them by.

The actual money quote from the 2012 DOT and E report (pdf, numbered page 177):
The MH-60S helicopter and AQS-20A sonar are not operationally effective or suitable because the helicopter is underpowered and cannot safely tow the sonar under the variety of conditions necessary. The Chief of Naval Operations recently concluded that the MH-60S helicopter is significantly underpowered for the safe performance of the AMCM tow mission and provides limited tactical utility relative to the risk to aircrew, and cancelled that MH-60S mission. The decision to cancel the AMCM tow mission affects employment of both the AQS-20A sonar and Organic Airborne and Surface Influence Sweep.
• As observed during the OA and developmental testing, the AQS-20A does not meet all Navy requirements in all operating modes. Contact depth (vertical localization) errors exceeded Navy limits in all AQS-20A operating modes. FCD also exceeded Navy limits in two of three search modes.
• The analysis of test data collected during Phase A of the OA of the MH-60S and ALMDS is still in progress. Preliminary evaluation of data collected during the OA suggests that the ALMDS does not meet Navy requirements for FCD or reliability. DOT and E expects to issue a formal test report in 2QFY13. Phase B testing was originally intended to provide early operational testing insight into the operational effectiveness and suitability of AMCM systems when operating from an LCS, and to identify risk to the successful completion of IOT and E. However, the Navy’s cancellation of Phase B testing will eliminate these intended benefits.
Plan B seems to involve surface robots.

Wow.

If you are going to run robots around, here's a lower cost alternative to the LCS for MIW ops:
Long linger time with nice deck chairs.

Just saying.

Friday, August 31, 2012

International Navies to Conduct Mine Countermeasures Exercise

In the world of mine warfare that may involve a narrow but valuable strait that is part of major sea lane vital to economies around the world, it's a great idea to get many interested parties together and practice counter-mine warfare and - well, golly, could you pick a better spot to hold an exercise of this type at this time than in the Arabian Gulf?

 Read all about it at International Navies to Conduct Mine Countermeasures Exercise:
In September, the U.S. Fifth Fleet will host its first International Mine Countermeasures Exercise (IMCMEX). With more than 20 nations participating from Asia-Pacific, Europe, the Middle East and North America, IMCMEX 2012 will be the largest of its kind ever in this region.

Operating together in a series of at-sea maneuvers, international air, sea, and undersea forces will respond to simulated sea-mine attacks in international waters and clear maritime routes to restore freedom of navigation. The cooperation of navies from around the world promises high tactical value for the ships, aircraft, and divers involved; while demonstrating international resolve in defending maritime security against potential threats.


IMCMEX 12 focuses on interoperability among navies and also among the triad of air, ship and undersea platforms that deliver full-spectrum mine countermeasures capability. The inherent flexibility of naval forces allows IMCMEX to demonstrate capability in additional areas also, including logistics, rendering assistance to mariners and coordination with commercial shipping. Conducted in two phases, IMCMEX begins with a symposium ashore in Bahrain followed by maneuvers at sea in key locations in the Arabian Gulf, Gulf of Oman and Gulf of Aden. The at-sea maneuvers will involve a number of mine-countermeasure techniques for defending key maritime areas around the world, including strategic chokepoints. Forces from various nations will include minesweeping and minehunting ships, helicopters, and undersea vehicles; command and support ships equipped to serve as afloat bases for MCM forces; and naval dive platoons for mine detection and disposal.

IMCMEX 12 is a defensive exercise aimed at preserving freedom of navigation in international waterways in the region. The international community has a critical shared interest in the free flow of commerce via strategic waterways.
Note the use of "Arabian Gulf" in the release. It just irritates the heck out of some of the leaders of a nearby nation which borders the Strait of Hormuz.

UPDATE: Speaking of which, did you happen to come across this report from the ever reliable Iranian Fars News Agency about Iranian Mines, Missiles Can Easily Shut Hormuz:
In addition to its short, mid, and long missiles, Tehran has a range of other weapons it can use to close down the vital oil artery.

These include the hard-to-detect "rocket mine" that's triggered by the distinctive magnetic our acoustic signature of a ship, such as a US aircraft carrier, and then launches a propelled 600-popund warhead at the target.

Then there's the Russian MDM6, equally difficult to detect, that can tackle multiple targets. It lies on the seabed that fires a torpedo-like warhead when it senses a vessel.

Both these mines can be laid by Iran's Kilo-class submarines.
***
Iran isn't planning to fight a conventional war with the US and its allies. Rather it plans to employ what's known as asymmetric warfare, in which the weaker forces uses unconventional means to overcome the power of a strong opponent.

Asymmetric warfare is specially appropriate for the Persian Gulf and the Strait of Hormuz which are too narrow for the huge US warships to maneuver.

That means mines, anti-ship missiles and swarm attacks by small heavily armed boats.

By some accounts, Iran is believed to have as many as 3,000 sea mines. Some estimates go as high as 5,000, but no one knows the exact number as Iran never discloses all its capabilities and arsenals.

Whatever, it's the fourth largest sea mine arsenal in the world after the United States, Russia and China.

The EM-52 is probably the most dangerous mine Iran has. But the bottom-influence EM-11 and the EM-31 moored mine can also play havoc with surface craft.

So the United States and its allied naval forces face a formidable foe.
***


"Iran's ability to lay a large number of mines in a short period of time remains a critical aspect of the stated capability to deny US forces access to the Persian Gulf and impede or halt shipping through the strait," cautioned US analyst Anthony Cordesman in a March analysis by the Center for Strategic and International Studies in Washington.

Iran has hundreds of anti-ship missiles, including 300 C-201 Seersucker weapons and 200 C-801 indigenous Noor systems, deployed along its long Persian Gulf coastline, as well as air-launched weapons and cruise missiles.

Wednesday, April 11, 2012

When the time comes . . . Mine Iran!

When I was a young naval officer, the gloves finally came off in the protracted war against what was then North Vietnam and we loaded up on various sea mines and took the war to the enemy (meaning those countries supporting NVN by sea) by sowing mines in the harbors of the North. Interdiction, blockade and power projection were all on display in one or two long days of dropping mines into the right place to shut down the North Vietnamese war material machine.

Now, there is at least one voice pointing out that the old favorite of the Iranians - the sea mine - could be used to halt their economy - for example. Commentary: "How to Defeat Iran" by George J. Gilboy:
One such option worthy of consideration: using mines around Iran's naval ports and oil-export terminals. This might create better leverage than a campaign of air strikes—without generating the death and destruction that could give Iran a cause for perpetual grievance. Mining would shut in both the Iranian navy and Iran's oil exports.

Modern U.S. naval mines are not indiscriminate weapons. They have programmable sensor-trigger mechanisms. These mines can be set to arm after a delay for a warning period, select targets based on a ship’s magnetic, pressure and acoustic signature, and they can be neutralized or cleared after a conflict.
***
But mining Iran's naval facilities could degrade Iran's ability to shut down the Strait of Hormuz or attack U.S. forces on patrol. Iranian minelayers, submarines and missile-armed surface ships would be trapped in their ports or unable to return to them safely.

Beyond that, mining Iran's oil-export terminals would impose considerable costs on the regime. According to the IMF, oil-export revenues account for more than 20 percent of Iran's $475 billion gross domestic product (GDP). Assuming that 80 percent of oil exports by sea can be halted by mines, and accounting only for lost oil profits, the net impact could be a loss of Iranian GDP equal to $59 billion over one year. This would be the equivalent of reducing Iran's GDP growth from today's 3 percent to around negative 12 percent.

And the impact could be even greater. Iran also imports a large portion of its refined oil products. With imports also interrupted, the total lost GDP could be in the range of $66 billion in one year. In the context of an economy that now suffers from 11 to 13 percent unemployment, this would put intense pressure on an already-divided Iranian society and its rulers.
While the author of the piece is bent on seeing mine warfare as an alternative to other sorts of bombing, missile attacks and more, I am not sure he appreciates the all risks incurred in playing the mine war card.

On the other hand, there may come a time when options have played out, and when that time comes . . . unleash the mines of war!

And standby with all the other tools.

You can gain some information on U.S. sea mines at the Current Mine Inventory section of this larger NavSea web publication, "U.S. Navy Mine Familiarizer." You might note that the pictures above that are not drawing of mines aremine delivery vehicles.

You might also note that Iran doesn't seem to have much of a mine countermeasures force.  You know that just might make mines - asymmetric . . .

Just a thought worth thinking about.

Thursday, November 10, 2011

Mine Sonar for Small Combatants

TrailBlazer combines wideband transmission, high directivity, and an advanced operator interface to provide superior detection capability against mines and other threats to
shallow-water operations
An somewhat aged press release (so take it as such) from General Dynamics Canada:
General Dynamics Canada today announced the release of TrailBlazer, a high-frequency, high-resolution sonar system specifically designed for mine and obstacle avoidance (MOAS) on patrol vessels, corvettes, frigates and destroyers operating in littoral waters. TrailBlazer combines wideband transmissions, high directivity and an advanced operator interface to provide superior detection capability against mines and other threats to shallow-water operations.

“With 250,000 sea mines in the inventories of over 50 navies worldwide, mines represent an ever-increasing threat to coastal and waterway security, especially in littoral waters,” said David Ibbetson, vice president and general manager of General Dynamics Canada. “TrailBlazer’s power, range and resolution make it a very effective solution against such underwater littoral mine threats.”
***

Tuesday, February 02, 2010

Seaborne terror mines from Hamas?

Reported here:
Palestinian militants said Tuesday they had launched a large number of floating explosives into the Mediterranean Sea to avenge the death of a top Hamas commander, a day after two bomb-laden barrels washed up on Israel's coastline.

Israeli authorities launched an intensive search for new bombs, closing miles of beaches, deploying robotic bomb squads and ordering surfers out of the wintry waters.
***
On Monday afternoon, a barrel bomb washed up on the beach of Ashkelon, about nine miles (15 kilometers) north of Gaza. A few hours later, another one was found at Ashdod, six miles (10 kilometers) farther north.

Each had about 22 pounds (10 kilograms ) of explosives, police said. They said bombs of that size could cripple small civilian vessels but not Israeli warships.

The barrels should not pose a threat to shipping lanes in the east Mediterranean since the tides would just carry them back to shore.

The second barrel blew up as a police robot was examining it, sending the tractor-like device tumbling through the air, according to witnesses. A police bomb squad defused the other one. No one was hurt.

Maritime authorities warned sailors and fishermen to be alert to possible dangers in the waters. In Ashdod, a crane-like robot crawled along the beach, prodding suspicious objects.

The military linked the barrels to two explosions at sea on Friday, aimed at Israeli ships. Israeli analysts speculated that the beach barrels might have been meant for ships but floated ashore instead.
More here with photos.

Not a sophisticated ploy by Hamas, but they are still out there trying.

Thursday, May 01, 2008

Port Security: Sea mines, UWIEDs and other threats

The 2004 terrorist attack on the Philippine Superferry 14 resulted in the deaths of 116 people and the loss of the ship. In that case, the damage was wrought by a bomb planted inside the ferry. Increased security for ships and ferries may cause terrorists to look to other ways to cause such damage to ships and to vital shipping lanes, including those in ports or inshore areas.

As noted in a recent post, the Department of Homeland Security recently unveiled a "Small Vessel Security Strategy" (SVSS) warning of the threat potential of small vessels:
Small vessels are, however, readily vulnerable to potential exploitation by terrorists, smugglers of weapons of mass destruction (WMDs), narcotics, aliens, and other contraband, and other criminals. Small vessels have also been successfully employed overseas by terrorists to deliver Waterborne Improvised Explosive Devices (WBIEDs).
The SVSP points out the critical nature of U.S. ports, through which flows 20% of "annual world ocean-borne overseas trade." This trade, so vital to our economy is moved through 8 high volume ports, 352 lesser ports, along 95,000 miles of coastline and about 10,000 miles of rivers, canals and other internal waterways. In addition, territorial and economic zone waters are vital to the American economy:
In 2005, offshore activities contributed over $120 billion and two million jobs to American economic prosperity. Approximately 30% of U.S. oil supplies and 25% of its natural gas supplies are produced in offshore areas. Nearly 700 ships arrive in U.S. ports daily, and 8,000 foreign-flag ships, manned by 200,000 foreign mariners, enter U.S. ports every year. Annually, the nation’s ports handle more than $700 billion in merchandise, while the cruise industry and its passengers account for $35.7 billion in direct and indirect economic output. All told, the U.S. MTS (Maritime Transportation System) supports a global chain of economic activity that contributes more than $700 billion to America’s economy each year. In addition to the global maritime trade contributions, the economic role of ocean industries provides tremendous value to the domestic economy. The MTS supports the commercial fishing industry and its 110,000 fishing vessels. In 2006, it contributed approximately $35.1 billion to the U.S. economy, while the recreational saltwater fishing industry was valued at $30.5 billion. (footnoted omitted)
Ports and water transportation are big, important businesses.

The Small Vessel Security Strategy does a good job of identifying historic threats posed by small vessels:
The four scenarios of gravest concern in using small vessels in terrorist-related attacks have been identified as: a. Domestic Use of Waterborne Improvised Explosive Devices (WBIEDs); b. Conveyance for smuggling weapons (including WMDs) into the United States; c. Conveyance for smuggling terrorists into the United States; and d. Waterborne platform for conducting a stand-off attack (e.g. Man-Portable Air-Defense System (MANPADS) attacks).
See pages 11 through 14 of the SVSS (available for download here) for descriptions of how these scenarios have or could be played out. Of the four, terrorists around the world have already engaged in all of them except, to my knowledge, transport of a WMD.

Absent from the SVSS discussion is another potential threat to our maritime security - the potential use by terrorists or others of sea mines or underwater improvised explosive devices (UWIEDs) (hereafter such objects will be referred to as "mines") in our vital internal waterways. That small vessels have the potential to deliver mines or mine-like objects is a topic that deserves mention among the other things that government agencies, small vessel owners and operators, whether business or recreational, ought to keep in mind while they are keeping an eye out for suspicious activity along the waterways.

While this potential mine problem was not mentioned in the SVSS, it has been receiving attention - at least in some circles. Dr. Scott Truver, co-author of book Weapons that Wait (Gregory K. Hartmann, Scott C. Truver, Weapons that Wait: Mine Warfare in the U.S. Navy, USNI Press, Annapolis, 1979), has been actively writing and speaking about his concern that this threat not be forgotten. Dr. Truver's articles have appeared in National Defense Magazine as far back as April 2007 in a piece titled (incorrectly, I believe) "Mines, improvided explosives: a threat to global commerce?" (should read "improvised", I think). He points out a problem - the chain of command is not clear in dealing with mine threats:
In U.S. coastal waters, the responsibility for security falls to the Coast Guard. The Justice Department’s Bureau of Alcohol, Tobacco, Firearms and Explosives also figures prominently in investigations involving explosives. The Navy is the lead agency for mine countermeasures expertise and operations.

The lines of responsibility in an actual attack, however, are murky.

The federal government has a lead role under the national response plan. But regional, state, local, and commercial partners must also be closely integrated and informed. Indeed, a multi-agency team is needed for each U.S. port — or at least the 17 “tier-one” facilities having significant military or economic importance.

The Coast Guard’s “captains of the port” play a crucial role as local federal maritime security coordinators.

But the Coast Guard has no capabilities — and perhaps even no desire — to conduct countermine operations. Retired Coast Guard Vice Adm. James D. Hull, who served as Atlantic area commander, said that countermine is “primarily the Navy’s responsibility … The Navy has the expertise and equipment to do the job. The real question is whether the Navy’s forces can respond in the appropriate time to neutralize a threat.”
***
“I’m not sure we’ve done all our homework concerning who could or should hunt for real weapons,” said retired Navy Capt. Thomas B. Davilli, a former commander of countermine forces. “One thing I do know, [the Navy’s] assets are designed to operate safely in the presence of the threat. Whether others will have the capability is doubtful.”

Participants in a recent war game, he said, “pointed to a local law-enforcement organization that has an EOD-like response dive team.” But the presence of an anti-tamper countermeasures device on the mine or underwater explosive device certainly complicates matters, he added. “Others have suggested hunting for actual mines from small craft towing commercial side-scan sonars. … The thought of sending crewed assets into a mined threat area without signature silencing or some sort of ‘safe track’ procedures is foolish.”


Exacerbating the challenge for federal, state, and local actors is the fact that no two ports are alike. Each differs in geography, channels, bathymetry, winds, tides, currents, bottom sediments, turbidity, climate, and critical infrastructure — piers and wharves, moorings, navigation markers, cables and pipelines.

The best strategy is to interdict the minelayers before the mines can be put in the water. If that fails, the Coast Guard, Navy, FBI, ATF, and other federal- and non-federal first responders will need to understand what is known as the “intelligence preparation of the environment.”

Agencies must be aware of potential mining areas, at least for each of the 17 “tier-one” ports.
There also is "Mines and Underwater IEDs in U.S. Ports and Waterways: Context, Threats, Challenges and Solutions" by Dr. Truver in the Naval War College Review, Winter 2008, Vol.61, No.1, pp.106-127 (the entire Winter 2008 issue can be downloaded in pdf format here - just select the issue). This article is worth reading for many reasons, but some of it contains information that will be eye-opening to many Americans who are unfamiliar with the mine threat - including reports of domestic mine terrorist acts that have already happened in this country. One such incident involved the "patriotic SCUBA diver:"
The “patriotic scuba diver” mine crisis of January 1980 showed that a terrorist threat of mines—in this case “mining” the Sacramento River during the Soviet grain embargo announced by President Jimmy Carter—could have dramatic effects on maritime trade. An unknown person identifying himself as the “patriotic scuba diver” claimed by telephone to have placed a mine in the waterway; all shipping movement ceased almost immediately. Once on scene, the Navy minesweeper USS Gallant required four days of intensive minehunting to
determine the channel was safe. No mines were discovered, but the cost in merchant
vessel lay days caused by the hoax was estimated in the hundreds of thousands
of dollars.
Another incident occurred during the last presidential election:
...on 21 April 2004 a tugboat operator on Lake Pontchartrain, Louisiana, spotted a suspicious floating bag and called the Coast Guard.18 The Coast Guard contacted the Jefferson Parish bomb squad, which fished the bag out of the water. It proved to be a UWIED, a couple of pounds of explosive in plastic pipes with a timer, wrapped in trash bags to keep it afloat. One possible target was Senator John Kerry, a presidential hopeful who had been scheduled for a campaign trip on the lake. The bomb squad used a water cannon to neutralize the device.
Dr. Truver mentions many more examples of the mining of restricted waters by "merchant" ships of terrorist supporting nations, including the mining of the Suez Canal by Libyans in 1984 (see page 111 of the article). Mines do not require a sophisticated delivery system. Dr. Truver also prepared an interesting presentation to the American Society of Naval Engineers "Naval Mines and Underwater IEDs...The Threat is Real!"which can be seen in pdf format or html. See also National Defense Magazine January 2008 article Improvised Explosive Devices: Could They Threaten U.S. Ports? Not surprisingly, the answer is "yes:"
“Underwater improvised explosive devices are a credible threat,” said Rear Adm. John Christenson, vice commander of the Naval Mine and Anti-Submarine Warfare Command.
Another layer of the mine threat pops up in discussing the Armed Forces Journal March 2008 edition, in retired Navy Captain Karl Hasslinger's "Undersea warfare: The hidden threat" in which the author posits an al-Qaeda inshore and offshore threat occurring in the not too distant future (he suggests 2011):
Over the past year, al-Qaida used a combination of merchant ships, commercial submarines and remotely operated vehicles to place explosives in U.S. ports and adjacent to seabed infrastructure, including transoceanic telecommunications cables, and oil and gas pipelines in the Gulf of Mexico.
Simply add recreational boats to his list of threat delivery platforms and he and Dr. Truver are fishing in the same waters.

I do note that "limpet" mines have been used to sink a number of vessels in port,
including vessels belonging to the Greenpeace, though in all fairness, many of these sinkings were the work of governments. Most major ships are now inspected for such mines before they depart for deep water. The mines of concern are not attached to the hulls of ships like limpets, but rather the sort of mines placed on the floor of a ship channel or area of restricted maneuvering.
That the threat has caught the eye of active duty problem managers is evident from this Navy Times comes article:
America’s maritime security forces plan to devote more attention to the threat of terrorist mines in U.S. ports, top Navy and Coast Guard commanders said Wednesday, even as the Navy scales back its mine warfare ships before its new mine countermeasure systems enter the fleet.

Vice Adm. Evan “Marty” Chanik, commander of 2nd Fleet, said this year’s “Frontier Sentinel,” a joint U.S.-and-Canada maritime security exercise scheduled for June, will include a harbor mine scenario, and he cited requests by the Department of Homeland Security for funding to conduct detailed surveys of prominent ports. Commanders hope that having detailed charts of ports would be a good start towards helping with responses if terrorists mined them.

And Coast Guard Vice Adm. D. Brian Peterman, commander of the Coast Guard’s Atlantic Area command, cited the monthly “warfighter talks” that take place between Chief of Naval Operations Adm. Gary Roughead and Coast Guard Commandant Adm. Thad Allen, at which the harbor mine problem is a frequent topic, Peterman said. The fact that the mine challenge is discussed “at the highest levels” shows that it’s “getting the right attention.”
Well, maybe. I've been in a lot of exercises where the "mine problem" is truly a show-stopper, gets acknowledged as such and then gets "assumed" away.

It was a fairly common part of some of the Naval Control of Shipping exercises (as far back as the early 1980's and presumably before then, too) to start the problem of getting essential shipping from Port A to Port B with reports of someone observing someone rolling a mysterious object off the fantail of some foreign flagged ship (aren't most of them?) into some U.S. restricted waterway.

As any naval officer knows, the answer to the question "How many mines does it take to create a minefield?" is - "None - it just takes the threat of a mine."

The issue then became one of treating said object as a potential mine and beginning the process of working through the "de-mining" process. In case you are wondering, there were variations on this theme, including scuttled ships in narrow shipping channels, explosively dropped bridges, etc, etc.

De-mining, for those of you unfamiliar with the process, can be a painfully slow task indeed.

The exercises were very unrealistic, in that someone always seemed to have been watching the "bad guys" at exactly the right minute, recognized there might be a problem and dialed the right telephone numbers to get the attention of the appropriate authorities before multi-million dollar ships with multi-billion dollar cargo actually started their transit through the now potentially dangerous waters.

Because sinking the ships alongside the pier was not conducive to convoy planning, the Naval Control of Shipping exercises didn't deal with that issue so much.

I suspect in real life that one of those big ships might become the "flaming datum" that demonstrates the existence of a mine problem in the channel.

Real experts in mine warfare know that the thing that takes time is getting to know the underwater terrain. As reported here, vice commander of the Naval Mine and Anti-Submarine Warfare Command, Rear Admiral Christenson offers up this:
“If you want to get a port opened quickly, you have to do your homework in advance,” Christenson said. “You have to know what’s on the bottom before you start.”

In that vein, his command is consolidating information on U.S. ports and attempting to survey harbor waters in order to identify objects that already are lying in the bottom of the ocean.

“If we already know where those refrigerators, cars and anchors are in advance, if somebody drops something in, we can do a change detection to see what’s new. But that requires investment and effort in advance,” said Christenson.

Last year, the service conducted an 11-mile channel survey in San Diego. To sort through the 600 mine-like objects detected on the sea floor required 600 man-hours to accomplish the task.

Conducting such port surveys before a catastrophic event occurs could cut the Navy’s response time in half and accelerate the reopening of a port, said Christenson.

“It has all the potential in the world of making the mine countermeasure response to a domestic crisis much more manageable,” said Truver.

The National Oceanic and Atmospheric Administration conducts such surveys and it has estimated it will take three years and cost $14 million to map the bottoms of the nation’s busiest 20 ports.

“That’s the insurance policy that you buy so that you don’t have $1.9 billion worth of economic impact alone per day, based on what we experienced in the 2002 West Coast strike,” he said.
Dr. Truver does mention in passing in a couple of his articles that the Navy Reserve used to have units - Craft of Opportunity (COOP) units- that were once engaged in bottom mapping operations in several ports. However, he also notes that the COOP units are now no more. As Dr. Truver puts it:
It has been years since the Navy, as part of its Cold-War port-breakout concepts, conducted routine bottom surveys and mapping of “Q-Routes” to assure safe egress of warships and auxiliary vessels in support of national strategies and war plans.

The Royal Navy has already embarked on such an effort in several U.K. ports. Some experts have proposed resurrecting the ill-fated mid-1990s’ COOP — Craft of Opportunity — program and have Navy Reserve units conduct periodic surveys and sonar mapping of bottoms. Others have recommended that the maritime transportation industry and port authorities take the lead. Another option is to outsource the survey and mapping responsibilities to contractors. In short, there is yet no coherent plan, staffing or program.
At least one contractor is available for such work, Orca Maritime, operated by a couple of retired Navy EOD operators. Orca's "vision" is to
Build the foundation for an effective underwater maritime domain security program, significantly enhancing public safety, economic stability, and environmental protection in our ports.
Orca provides relevant news concerning port security here. Included among these links is one to a recent article featuring a discussion between the Coast Guard Commandant and the Navy CNO in which a discussion of the need to get to know the territory under the waves is laid out:
Coast Guard Commandant Adm. Thad Allen and Chief of Naval Operations Adm. Gary Roughead recently discussed the ability of the U.S. government to conduct surveys of domestic ports to help defend the country against a potential underwater mine or improvised explosive device attack, the top Coast Guard officer told Inside the Navy in a recent interview.

“What we’ve been discussing with NOAA [National Oceanographic and Atmospheric Administration], the Navyand everybody else is how to come up with a standardized, repeatable process to do port surveys,” Allen said April 9.

“We’re putting together a plan on how to do it, everyone is in agreement we need to do it and we’re going through the first year of [figuring out how to] program that into budgets.”
***
A terrorist mine attack in a domestic port could disrupt the flow of global commerce and have “psychological effects on the general populace,” retired Vice Adm. Conrad Lautenbacher, the director of NOAA and under secretary of commerce for oceans and atmosphere, wrote in a Nov. 29, 2007, letter to Vice Chief of Naval Operations Adm. Patrick Walsh.

The subject of Lautenbacher’s missive was to enlist the help of the Navy to secure funds, which would be provided by the Department of Homeland Security, to survey 50 dual-use U.S. ports over five years at a cost of roughly $38 million.

Additionally, the NOAA director wants $2 million to survey two East Coast ports this fiscal year, the letter states.
***
Outstanding issues remain before funding can be secured for the surveying effort, Allen said last week. One of these issues is “agreeing [that] not every port is important,” he noted.

“You have to decide which ports you’re going to do, in what sequence, and how much it’s going to cost to do them,” Allen said. It remains unclear whether NOAA, Navy oceanographers or contractors -- or a combination of all three -- would conduct the surveys.
I admire Admiral Lautenbacher for his aggressive pursuit of the issue and Admirals Allen and Roughhead for getting started on talking about assigning the problem to "solvers."

However, I am concerned that this very important part of port protection will go the way of so much of mine warfare- ignored until it's really needed.

Some seem to believe that mines are a threat that is "overblown" compared to other threats (like LNG tankers being turned into "fireballs"), although I am unimpressed with the analysis in that it overstates the difficulty of planting mines and underestimates the ease with which such mines can be acquired or manufactured. But then again, I have seen the damage done to a billion dollar ship by a $1000 mine.

Being prepared is the better alternative.

(NB E1: I want to make sure that it understood that in this piece, I am not referring to big old World War I style contact sea mines, such as the one in the top most photo, but rather to modern mines such as those in the lower mine photos (top to bottom): Manta -shallow water mine; Murena- "multi influence sea mine; open view of a Maindeka limpet mine, and to home made mines that could be in almost any form - ranging from an small ice cooler to an oil drum. Weapons that can be handled by one or two people.)