Tag Archives: UUV’s

MFP 6: The Fleet of the Future

What will your Navy/Coast Guard look like in 5/10/25/50 years, and how is it different from today?

This is the sixth in our series of posts from our Maritime Futures Project.  For more information on the contributors, click hereNote: The opinions and views expressed in these posts are those of the authors alone and are presented in their personal capacity.  They do not necessarily represent the views of their parent institution U.S. Department of Defense, the U.S. Navy, any other agency, or any other foreign government.

LT Drew Hamblen, USN:
In 25 years we will not use aircraft carriers.  Manned jets will also be obsolete.  Helicopters will be manned for logistical flights only.  Pods of “gamer-like” unmanned aerial system (UAS) operators will rotate out for round-the-clock patrol and surveillance.

Bryan McGrath, Director, Delex Consulting, Studies and Analysis:

New additions to the hanger bay.
New additions to the hanger bay.

I will take on only the 50-year horizon, and I will start by saying that YES, the aircraft carrier will still be in existence.  Not just because they last for decades, but because of their continuing utility.  At some point in the next two or three decades, we will collectively make the switch to a predominately unmanned carrier air wing.  This will then lead to the construction of a totally new aircraft carrier, one built from the keel up to project unmanned power.  In essence an assembly line whose product is combat power, this vessel would launch (primarily) unmanned platforms on missions, recover them, harness them to an assembly line in which the aircraft receives required maintenance, fuel, new mission planning and new armament—and is then redeployed almost immediately.  Diagnostics would pull aircraft off the line at pre-programmed locations for maintenance that would remove them from the immediate flight cycle.  These aircraft would essentially be a wing, a bomb, fuel, and a computer.  Manned aircraft would fill C2/ABCCC (airborne battlefield) type missions, to include flight following/control of unmanned aircraft of all types.  More combat power will be submerged.  The U.S. mastery of the undersea domain will continue and increase.  Hybrid warships will operate both on and beneath the ocean’s surface.

CDR Chris Rawley, USNR:
I’m bullish on unmanned systems, which will become increasingly pervasive in the U.S. Navy over the next few decades.  Within 10 years, virtually every surface platform from patrol boats to CVNs (aircraft carriers) will carry one or more unmanned aerial vehicles (UAVs).  UAVs in the inventory will likely become more numerous than manned aircraft in the next half-century.  Over a decade of combat has demonstrated that unmanned aircraft are capable of conducting a great many of the missions that have traditionally been performed by manned aircraft, especially scouting and intelligence, surveillance, and reconnaissance (ISR).  Strike will be the next mission-area to benefit from long-endurance UAVs, then airborne electronic attack (AEA), and eventually air-to-air combat.  The impediments to these changes are more cultural than technical.

The outcome of two programs, in particular, will be critical determinants of whether unmanned surface vessels (USVs) and unmanned undersea vehicles (UUVs) are introduced into the fleet to the same extent as unmanned air systems.  On the surface side, SAIC’s Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel (ACTUV) is an interesting concept, which if successful, will reverse some of the asymmetry associated with the proliferation of quiet diesel submarines.  On the undersea side, the Large Displacement Unmanned Underwater Vehicle Innovative Naval Prototype (LDUUV INP) will demonstrate whether the physical limitations inherent in unmanned submersible propulsion and endurance can be overcome to produce a useful and flexible combat capability.

Unmanned systems are not a panacea and will never replace the dedicated, capable Sailors that make our navy the most powerful in the world.  These systems and their associated concepts are untested, and it remains to be seen if they can take over, or at least complement, the roles of manned platforms.  Even so, unmanned naval systems will reduce the risk to our Sailors in many mission areas, and if acquired smartly, will realize savings in defense.

LT Scott Cheney-Peters, USNR:
0-5 Years:  Pretty much the same fleet.  More drones and hybrid-electric drives.  It will be interesting to see what direction the U.S. Navy goes with upcoming design selections on new amphibious ships, and even more so with what capabilities they – and the next batch of destroyers – must have.  Most likely the nation’s economic crunch will place the emphasis on modernized versions of what we already know works, but hopefully not at the expense of finding ways to facilitate cheaper upgrades in the future (for example through modularized components).

5-10 Years:  Early afloat experimentations with directed energy/electric weapon systems (DEEWS), especially for ships’ self-defense.  More ships reach the fleet with drone use integrated into their designs.

10-25 Years:  DEEWS starts to be incorporated into ship design.  Drones increasingly play a greater role, not only performing ISR, but many other forward missions.  If battery capacity and non-traditional energy-generation development trends continue, a lot more widely dispersed, self-sustaining drones that can loiter for months or years deploy on and below the waves.    Specialized Arctic drones and Arctic modifications for manned vessels are developed for operations in the opening and warming, but still harsh, far north due to climate change.

 

Are you in my network?
      Are you in my network?

25-50 Years:  Drones start to factor into presence requirements in ship numbers at the beginning of this time frame as manned vessels (surface or subsurface) become primarily motherships/command and control (C2) network nodes.  Additive manufacturing (3D printers) capabilities are integrated into a number of vessels that serve as mobile production facilities.  These might either be larger manned auxiliaries or dispersed aboard the motherships to facilitate drone production.

The large networks of naval drones increase the Navy’s MDA capabilities to an almost unimaginable level during this time, but the missions of maritime interdiction (boarding) operations, ballistic missile defense, humanitarian assistance/disaster relief, and of course, showing the flag (good news for waterfront bars worldwide), remain the domain of manned vessels – but they are empowered by their naval drone and mobile production facility capabilities.

In the latter part of this timeframe and beyond, key nodes of unmmaned drone production facilities are located at naval bases and maritime hotspots around the globe and aboard mobile and themselves unmanned and automated.  Some of these may be based on, or tethered to portions of the sea bed that can be exploited using new mining techniques to support the production activities (as well as those aboard vessels with the facilities).  Most manned naval aviation will be over by the end of this timeframe.

One key variable will be whether the militarization of space occurs.  If it does, there will be more emphasis placed on the subsurface drones and undersea production facilities outlined above, as well as a greater push for acceptance of increasing levels of drone autonomy.  In the event of satellite communication disruptions, the network-node motherships can disperse new relay drones to regain control of their network of drones.  For those drone unable to relink to the network the level of autonomy automatically increases upon loss of the connection, allowing the dispersed platforms to continue to carry out their missions.

Rex Buddenberg, U.S. Naval Postgraduate School:
Reread my answer to question 4 – the best clues to a 50-year-ahead question may be found by looking back an equal amount of time.  A lot of the ‘maritime domain awareness’ data exists already.  I’ve seen the yammer about sensors over the years too.  But the extant data is tucked away in some stovepipe.  The big change is that this awareness will increase through integration of information systems.

Sebastian Bruns, Fellow, Institute for Security, University of Kiel, Germany:
“It is difficult to make predictions, especially about the future.” (Attributed to, among many other people, Yogi Berra)

The Optimist

2018:  The last of the four new Baden-Württemberg-class frigates is delivered on time and on budget.  Plans for three more frigates are in the making.  The versatile K-131 (MKS 180) corvette is being put into service since 2015.  Eight instead of the planned six vessels are procured.  A marked rise in maritime awareness throughout Germany has led to an increased budget and the establishment of a coordinating position in the Office of the German Federal Chancellor (head of government).  The new, lean German Navy is strongly integrated in international operations and mandates.  It plays a crucial role in regional stabilization operations and actively and visibly supports NATO missions.

2023:  The first of the new Joint Support Ships is already in service, the second is on the building ways.  Plans for the replacement of the F-123 and F-124 frigates are on schedule and on budget.  Seapower has been officially recognized as a key tool for German foreign policy by way of a Quadrennial Defense and Security Strategy.  The new, lean German Navy is strongly integrated in international operations and mandates.  It plays a crucial role in regional stabilization operations and actively and visibly supports NATO missions.

2028:  The Joint Support Ships and Germany’s strong leadership role in NATO’s Pooling & Sharing Maritime Patrol Aircraft (MPA) project have allowed Germany to play a wider role in international expeditionary operations.  Although the threat level for Germany and German maritime units has steadily increased over the past 15 years, no warship has been lost to enemy action.  The new, lean German Navy is strongly integrated in international operations and mandates.  It plays a crucial role in regional stabilization operations and actively and visibly supports NATO missions.

2063:  The German Navy has been fully integrated into a larger North-Central-European Maritime Force.  It plays a crucial role in regional stabilization operations and actively and visibly supports NATO missions.  The effects of climate change have long been added to the toolbox of naval forces.

The Pessimist

Bye Bye Baden
Bye Bye Baden

2018:  The F-125 frigates will be delayed by years.  Budget cuts and the sudden demise of the German shipbuilding industry have led to a dramatic loss of building capacity. Politics demand a very isolationist approach to international politics, and the last of the four Baden-Württembergs is subsequently cancelled.  After more than a decade of development, plans for a corvette of the K-131 (MKS-180) class are scrapped.  Only one unit of the planned eight ships has been delivered.  Facing increasingly scarce resources and questionable political priorities, Germany continues to support a Common European Security and Defense policy, or what is left of it.

2023:  Not a single Joint Support Ship has been delivered after inter-service rivalry and broader political trends have torpedoed the whole program.  Facing a dramatic loss of reputation after years of dragging its feet in dealing with the Euro crisis, Germany has lost all of its influence within NATO.  The F-124 and F-125 are pulled out of ballistic missile defense (BMD) roles in the Mediterranean and elsewhere.  The effects of climate change wreak havoc on many countries and regions of the world.

2028:  The German Navy increasingly returns to being a coastal force, integrated with what remains of an ambitious project to organize a German Coast Guard much like the U.S. model.  The North and Baltic Sea with occasional visits to European allied nations are the major operational tasking.  Germany has pulled out of NATO SNMG-1 (-2).  International maneuvers and exercises largely by-pass Germany.

2063:  In the interest of not ending up writing fictional absurdity, I will choose not to answer this question.  My major fears have all been mentioned in the other three pessimist predictions.

Felix Seidler, seidlers-sicherheitspolitik.net, Germany:
In 5 and 10 years, our navy will not look different from today.  However, the known unknown is the impact of the Euro Crisis.  Ever-more pressure on our federal budget could lead to the cancellation of projects like the Joint Support Ship or the de-commissioning of several surface vessels.  In terms of operations, nothing will change.  Germany will continue to contribute to maritime UN, NATO, and EU missions as it does now, because it is the most palatable way for Germans to show themselves as an active ally.  Contributing ground troops to missions is highly unpopular over here; hence, sending ships is more comfortable for our decision makers.

How our navy looks in 25 years (2037) and in 50 years (2062) depends on the success or failure of European integration.  If the EU handles its economic crisis and, thereafter, pursues a track to deeper integration, our armed forces will gradually integrate further with those of other European countries.  The more European integration in politics, the more integration follows among European armed forces.  However, the huge question mark is the political will among European governments to pool sovereignty on such a level.  At this time it is highly unlikely.

If European integration fails and Europe turns back to the nation state, Germany is likely to give up all blue water ambitions and focus on coastal defense in the North Sea and the Baltic.  In 2060 Germany is projected to be only the 10th largest economy in the world with a population of around 65-70 million (1/3 older than 60).  Thus, due to its demographic and economic decline, Germany is likely to pursue a much-less ambitious foreign and national security policy, and may even be reluctant to use force abroad.  In this scenario, the German Navy may spend most of the time in its shipyards.

CDR Chuck Hill, USCG (Ret.):
Unfortunately the U.S. Coast Guard will not look different enough, if the relatively low level of capital investment continue.  Ships being planned now will not be built for 5-10 years.  The last of the Offshore Patrol Cutters, expected to replace our medium endurance cutters, will not be fully operational until approximately 2029, and all will likely still be in the fleet in 50 years.  The oldest of them will only be 44 years old, younger than ships we are replacing now.

I do believe we will see less distinction between search aircraft and rescue aircraft.  Other systems are likely to replace the pure search functions of our fixed wing aircraft, while rescue aircraft will gain greater speed and range as they employ newer technology.  Hopefully in 25 years we will see a new generation of rescue aircraft that have sufficient range and speed to eliminate the separate requirement for long-range search aircraft.

There will also, hopefully, be more information-sharing with other agencies, including comprehensive vessel tracking.

LTJG Matt Hipple, USN:
I can’t imagine.  Drones and missiles versus potential laser-based kill systems and airborne reflectors for over-the-horizon (OTH) interception or deflection.  Ships of increased size due to fuel and power draws for laser systems, if they work, coupled with a mass of smaller automated ships.  Autonomy all depends on what our level of acceptance is for the independence of the machine versus the level of risk we’ll accept from interference, interception, and hijacking.  Of course, perhaps it’ll merely be a pile of rusting LCSs hiding in Singapore.

YN2(SW) Michael George, USN:
I see the U.S. Navy as a little more contracted from what it is today.  With other country’s navies growing, they will want to control their own waters surrounding their country and not as easily permit the United States to do so.  This will impact the size of our fleet overall.

LCDR Mark Munson, USN:
If I’m being cynical, I’m not really sure that the future U.S. Navy won’t just be an incrementally better version of today’s fleet (probably smaller due to fixed/smaller budgets and cost growth, and without any major changes in strategy calling for a drastically different kind of fleet).  The current focus on Anti-Access/Area-Denial (A2/AD) will hopefully bear fruit in a fleet that is stealthier, capable of striking from greater range, and has a better ability to detect threats and manage that command and control/threat data within an afloat task force.

LT Jake Bebber, USN:
The signs are clearly pointing to a smaller U.S. Navy, despite the growth in worldwide maritime commitments.  We are already at our smallest point in the last hundred years and show no signs of reaching our goal of a 313-ship Navy anytime soon.  The Navy faces a choice on force structure:  we can attempt to mitigate our smaller size by improving the quality of our limited number of platforms (which are becoming ever more expensive), or we can rethink how we fulfill our maritime mission by producing more platforms with more limited capabilities.  A smaller force demands that we will not have a presence in many areas of the world, and our influence there will wane.  We have to accept that.  Or we can rethink our platforms’ design and mission to mitigate costs and allow the U.S. to maintain a maritime presence in regions critical to national security.  We will have to accept the commensurate risk associated with platforms with more limited (and less costly) capabilities.

Anonymous, USN:
The U.S. Navy will be smaller and weaker at the rate that budgets and policies are going.  Just the other day I openly questioned whether or not we’ll be able to call America’s Navy the finest Navy in the world in 10, 25, or 50 years.

Drones of the Navy SEALs

ScanEagle Launched from Mk V SOC
ScanEagle Launched from Mk V SOC

The mystique of Navy SEALs has been heavily celebrated in the media and films due to recent real-world exploits.  Yet Naval Special Warfare (NSW) Sailors have been heavily engaged in combat operations for more than 11 consecutive years.  Warfare is still a decidedly human endeavor, and America’s naval special warriors are quick to embrace the truth that “humans are more important than hardware.”  Nevertheless, today’s SEALs, Special Warfare Combat Crewmen, and other supporting personnel in the NSW community have benefited greatly from technology, which increasingly includes unmanned systems.

Two primary realizations within the NSW community drove the rapid introduction of UAVs for combat operations in Southwest and Central Asia.  The first realization was that even the best shooters in the world are ineffective if they are unable to locate their targets.  Simply, UAVs are a force multiplier for SEALs and enable an exponential increase in their ability to find, fix, and finish targets.  Secondly, as more and more small UAVs were added to the force, NSW began to understand that as valuable as these unmanned systems were, the skills required to operate and maintain them were a distraction for highly trained shooters.  This epiphany led to the creation of Unmanned Aircraft Systems Troops at Naval Special Warfare Support Activity (SUPACT) One in Coronado, California, and SUPACT Two at what is now Joint Expeditionary Base Little Creek-Fort Story, Virginia.  According to Naval Special Warfare Command, each UAS Troop totals 35 personnel among three detachments of UAS operators, a group of instructors, and military and civilian maintenance technicians.

For some additional first-person historical perspective on the evolution of unmanned air systems (UAS) in NSW, former Navy SEAL UAS expert and current lighter-than-air unmanned systems entrepreneur John Surmount discusses the origins of unmanned air systems in Naval Special Warfare in Operation Enduring Freedom in this podcast.  Since those early days, the breadth and depth of unmanned systems used by Naval Special Warfare Operators has expanded tremendously.

The exact tactics, techniques, and procedures for UAS use with NSW are a closely guarded secret (as well they should be), but in general, SEALs use drones to support the four core missions of NSW:

  • Direct Action (DA) – offensive missions to capture/kill enemy targets
  • Special Reconaissance (SR) – surveillance and monitoring of enemy activity and the littoral environment including beaches and ports
  • Counter-terrorism (CT) – conducting DA against terrorist networks
  • Foreign Internal Defense (FID) – assisting foreign military partners in developing their own special operations capacity.


UAVs are especially critical for finding and fixing the exact location of an enemy in DA and CT.  They also support, and in some cases replace, the eyes of operators in SR missions.  On a micro-scale, a demonstration the utility of UAVs can be seen in the film “Act of Valor” where a Raven UAV – launched by actual operators from Special Boat Team 22 – provides ISR over-watch of SEAL operators on a mission.  A more-capable, marinized UAV, the Puma AE, is also part of NSW’s inventory.

The beauty of these rucksack-portable systems is that they can provide organic support to a platoon or smaller-size group of SEALs.  The primary drawback is limited endurance.  Enter the Small Tactical UAS (STUAS).   NSW has embraced the ScanEagle for missions where long endurance ISR is a requirement.  NSW ScanEagles can be sea-launched from vessels as small as a MK V Special Operations Craft or based ashore at expeditionary sites.  Another example of the value of UAVs in the over-watch role was demonstrated in April 2009, when a ScanEagle provided a real time feed to assist SEALs in rescuing the Maersk Alabama’s Captain Richard Phillips from his pirate captors.   

More recently, NSW has benefited from the Navy’s introduction of the shipboard vertical take-off and landing (VTOL) Fire Scout.  Requirements for the next-generation VTOL UAS, the Fire-X MQ-8C, are also driven by special operations forces.  Future developments in Navy UAS integration for NSW will undoubtedly include armed tactical UAVs providing fire support to operators on the ground and sea.

The same concept of ISR support and armed over-watch applies to more complex operations with larger UAVs.  Land-based Air Force Predator and Reapers support NSW missions in Afghanistan and other areas.  A low-signature RQ-170 drone reportedly assisted the SEALs who conducted the raid to kill Usama bin Laden in May 2011.  NSW is also slowly progressing in the implementation of unmanned undersea vehicles (UUV).  These systems are used for missions such as hydrographic reconnaissance reducing the risk to operators and letting them focus on other core missions.  Much as the Navy’s Explosive Ordnance community has embraced autonomous underwater vehicles to help them hunt and neutralize mines, SEALs will eventually find themselves reliant on robots to survey beach landing sites.

Along with other underwater assets such as swimmer delivery vehicles, UUVs fall under the auspices of Naval Special Warfare Group Three (NSWG-3).  In 2010, Naval Special Warfare Command ordered some Iver2 autonomous undersea vehicles for experimentation.  NSW has also purchased 18 Semi-autonomous Hydrographic Reconnaissance Vehicles (SAHRV) outfitted with side-scan sonar and an Acoustic Doppler Current Profiler.  SAHRV is an adaptation of the REMUS 100.  On the USV side, earlier this year, Naval Sea Systems Command’s Naval Special Warfare Program Office sponsored a test of a Protector USV armed with Spike missiles.  The application of such a capability in support of NSW missions is unclear.

The combination of the world’s most proficient naval special operators enhanced by modern technology will continue to produce powerful strategic effects through tactical actions.

 

This article was re-posted by permission from, and appeared in its original form at NavalDrones.com.

What You Can’t Find…

 

Every Drone Can Be a Minesweeper?

A frequently cited fact in my days training to be a naval officer was that the most common weapon for damaging a warship since World War II was the naval mine.  The recently concluded International Mine Countermeasures Exercise 2012 (IMCMEX 12), held in 3 distinct OPAREAs throughout the U.S. Fifth Fleet Area of Responsibility (AOR), demonstrated both the difficulty of mine countermeasures (MCM) operations (detecting and clearing mines) and the potential of new technology to mitigate those dangers.

PBS’ News Hour quotes a retired naval officer and observer of the exercise, Capt. Robert O’Donnell, stating of the 29 simulated mines in the exercise, “I don’t think a great many were found…It was probably around half or less.”

The response from the Navy is a little confusing:

The Navy declined to provide data on how many practice mines were located during the two-week naval drill but did not dispute that less than half were found. However, a spokesman insisted that the figures do not tell the whole story and that the event was “‘not just about finding” the dummy mines.

“We enjoyed great success,” said Cdr. Jason Salata, the top public affairs officer for the 5th Fleet. “Every platform that was sent to find a shape found a shape. We stand by that.” Salata asserted that “there were no missed mines, each platform that had an opportunity to find the mine did so.”

While it is true that a 100% detection rate is not what the exercise was all about, that rate is still an interesting figure.  It could indicate that every mine was found, but perhaps not by every platform – instead as a result of the cumulative MCM effort.  It’s likewise unknown how the success rate broke down by platform and nation – more than 27 international partners operated with U.S. Fifth Fleet as part of the exercise.  What is known is that MCM remains a difficult and deadly business, particularly in the context of some of the most likely future conflict scenarios, including Iran and North Korea. 

While the exercise results will disappoint some (again, we don’t know who or what had difficulty finding what types of mines), they will also serve to reinforce the arguments for recapitalizing the Avenger-class MCMs, outfitting the USS Ponce as an Afloat Forward Staging Base, and placing rigorous demands on getting the LCS MCM mission package right.  As mentioned above, the exercise was additionally an opportunity to test out some new kit.  Before the exercise got underway, NavalDrones provided a preview of some of the Remotely Operated Vehicles (ROVs) and Autonomous Underwater Vehicles (AUVs) slated for testing in the drill, as well as a recap of other drones designed for MCM duties.  Furthermore, a pair of similar threats might spark the development of crossover technology for use in MCM.

In addition to the more traditional types of naval mines, detecting and defeating the waterborne IEDs and enemy drones (AUVs and ROVs) of both state and non-state actors is seen by some as increasing in importance, and may rely on many of the same technologies used in MCM.  Like the land-based IED/counter-IED arms-race of the past decade, we could be witnessing the start of a similar set of opposing innovation escalations.  Foreign Policy earlier this week reported that the creation of the Iraq/Afghanistan wars, the Joint IED Defeat Organization (JIEDDO), is executing its own Pivot to the Pacific to focus on the typically lower-tech threats of waterborne terrorists and IEDs.  Meanwhile NavalDrones last week highlighted some of the detection and clearance technologies that could be used against the evolving undersea drone fleets.  The next decade is shaping up to be an interesting time for technology under the waves.

 

LT Scott Cheney-Peters is a surface warfare officer in the U.S. Navy Reserve and the former editor of Surface Warfare magazine. He is the founding director of the Center for International Maritime Security and holds a master’s degree in National Security and Strategic Studies from the U.S. Naval War College.

 

The opinions and views expressed in this post are his alone and are presented in his personal capacity. They do not necessarily represent the views of U.S. Department of Defense or the U.S. Navy. 

 

Naval Drone Tech: Countering UUVs

Dolphin with pistol strapped to its head? Your days may be numbered…

As the recent Israeli shootdown of a Hezbollah UAV reminded us, it is relatively easy to destroy an unmanned aircraft.  But what about the proliferating numbers of unmanned undersea vehicles?  The growth in these systems for naval applications will inevitably result in the requirement to  counter an adversary’s underwater drones.  Detection of a small man-made object moving underwater is not trivial, but also becoming easier with the advent of technologies such as high-resolution imaging sonars and Light Detection And Ranging (LIDAR) systems.

However, once an AUV is detected, how can it be destroyed?  This problem set isn’t new. Mini-subs and combat swimmers have threatened ships in port since World War II.  The old school way of dealing with frogmen is to drop a concussion grenade over the side of a boat.  Alternatively, some navies have experimented with dolphins to counter swimmers.  These sorts of mammal-based systems could conceivably be trained to work against AUVs.  Other advanced technology developments will allow mammals to stay out combat.

Super-cavitating bullets, like those produced by US-based PNW Arms and Norway-based DSG Technology (see video) offer a potential weapon for defeating AUVs.  According to PNW Arms, “supercavitation is the use of cavitation effects to create a bubble of gas inside a liquid large enough to encompass an object traveling through the liquid, which greatly reduces friction drag on the object and enables the achievement of very high speeds.”  DSG Technology’s Multi-Environment Ammunition allows ordnance ranging in size from 4.5 mm through to 155 mm to transit from air to water or vice versa.  Conceivably, AUVs could be detected and engaged from the air.  The U.S. Navy’s AN/AWS-2 Rapid Airborne Mine Clearance System (RAMICS) technology demonstrator used a helicopter equipped with a blue-green LIDAR to locate mines near the surface, then a 30 mm super-cavitating round to neutralize them at depths of up to 60 meters.  The program was cancelled in 2011 due to technical and budgetary issues.

Super-cavitating rounds also open up the possibility of hunter-killer unmanned undersea vehicles, guarding a port from other AUVs, mini-subs, and swimmers.  Submariners often remind other sailors that the best ASW weapon is another submarine and the same may be true with AUVs.  However, discriminating between an AUV and a similarly sized fish or marine mammal before pulling the trigger might be difficult without some sort of corroborating data, or image recognition algorithms.

This article was re-posted by permission from NavalDrones.com.