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.
Unmanned naval systems are rapidly reaching the limitations of physics with regard to their endurance. Current internal combustion and electrically powered systems have several drawbacks. In addition to range/weight issues, liquid fuel engines make for noisy UAVs which can compromise missions in some circumstances, such as intelligence, surveillance, and reconnaissance. Electrically-powered UAVs are quiet, but batteries do not approach the energy contained within a similar weight of fossil fuel. This article clearly explains the physical limitations of current battery technologies. Modern lithium-ion batteries are problematic due to their propensity to catch fire and explode. SOCOM’s billion dollar Advanced SEAL Delivery System (ASDS) fire illustrated why navies are not keen on carrying lithium-ion batteries at sea, especially undersea. Clearly, alternative power technologies are in high demand.
Previously, we highlighted the use of ship-based lasers to power future UAS. The video below discusses these tests, along with a propane-powered variant. Planned upcoming flight tests will demonstrate the ability to keep a Stalker Small Tactical UAS aloft using a laser for two to three days.
For long-endurance surface and underwater vehicles where speed is not a mission requirement, wave power and buoyancy-driven gliders are viable alternatives. Another possibility for powering future autonomous sea-floor crawlers or UUVs is the benthic microbial fuel cell. Naval drones will require continued innovations in power to allow performance necessary to meet future operational requirements.
Harnessing the power of the murky deep.
This article was re-posted by permission from NavalDrones.com.
Force development is much like agriculture. Seeds appear trifling things; but such small objects can engulf entire fields or grow to incredible height. Investing early in incubator programs can lead to huge changes in the future. When observed from a position of strength, the small changes garnered by others seem superficial rather than tectonic. The American defense establishment is missing those tectonic changes as China’s military begins the process of stealing a march in force development.
Whatever you do, don’t think “crash.”
China is pursuing a broad portfolio of revolutionizing technologies. We have discussed in detail the potential opportunities for drone warfare on this blog and elsewhere. However, those working to reap such opportunities are not here in the U.S. where ideas are shared freely, but in the People’s Republic of China. Scientists in China have developed a system by which, with thought alone, an operator can control an aerial drone. Rudimentary technology at best, it is nonetheless a leap we have yet to take. Even at the beginning stages, it shows smoother control with a mental operator rather than a manual one. Although the US does seem dedicated to drone saturation, we have not moved past our initial uses and operation of them. Drones still require legions of remote operators rather than partial automation and direct connections with the men in the field. While we have yet to integrate our many exciting advances in automation and bionics, the PRC has grabbed a great leap forward and changed the very way they interact with drones.
China is also marching past us in more mundane military technologies. We have discussed the practicality and pragmatism of theHoubei versus our misbegotten LCS. Far from the risky investment in an in-shore knife-fighter some desired, LCS was held back as a conventional, do-everything (aka: nothing) combatant without the relative advantage in speed, strength, or resilience to give it any sort of field advantage. We essentially attempted to build a Ford RS300, but halfway through decided to finish it as an Isuzu Elf. Meanwhile, with the PLAN following a disciplined strategy for blue-water modernization, a stream of solidly-constructed and capable warships are pouring into the Pacific, making the failures of our current investment ever more evident. Our attempts at modernization in the air are just as white-washed; worse than the do-everything design of LCS, the new Joint Strike Fighter attempts to stuff the needs of every branch into one frame that doesn’t quite make anyone happy. Even basic capabilities, like anti-ship missiles, lag embarrassingly behind. While the U.S. still uses a sub-sonic cold-war relic, the PRC rolls out DF-21Ds. Where technology does branch out, it seems unnecessary, like the laser-guided Griffen Missile system on PCs that already have far-more capable Mod 2 25mm cannons. China’s more reasonable and planned forays into future technology have made our past-ideas decorated with sweet rims look ridiculous.
We are also shrinking from the one area in which we could claim total dominance: space. Although our nation is now in the mini-euphoria from Curiosity’s landing on Mars, most have forgotten that this is an achievement of a program started 8 years ago. Our current manned space program is dead. NASA shifted the lion’s share of investment to “earth sciences,” a realm already well-manned by all the scientists ON earth. China not only retains a manned space program, but advertises a plan for both the Moon and Mars. Even if such a schedule is a dream, at least they still have one. While this is not directly a military issue, it is a strong force multiplier. Space is the ultimate high ground. To lose dominance there undermines a vast number of U.S. capabilities.
Has never attended mandatory “Improving Financial Management” training
Our mighty oak is rotting from within. Money is pouring into failed projects. Our Sailors are over-stretched and time is cut for the training/education necessary to add critical value to those personnel. Our priorities are skewed, millions of man-hours are lost to politically correct schools and rubbish ship-wide life-choices training. Meanwhile, the PLAN marches forward, steadily planting the seeds necessary to grow a modern blue-water navy supported by a far greater industrial base than anything the U.S. can muster. They are slowly reaching into the commons, as the face put forward by the U.S. becomes harder and harder to maintain. If we don’t get back into step soon, we may need that long-view of history to see just how far ahead of us the Chinese march has advanced.
Catching Up
The effort necessary to regain our momentum would be disruptive, but not impossible. First, stubborn pride and sunk costs are no way to direct procurement. LCS must be cancelled. In its place, begin a vetting process for contracting apre-existanthullto be built in the US, backed up by a low-mix of new coastal patrol crafts and the new MK VI’s. This would provide the desired coverage using fast, proven, and cheaper vessels that would save us billions in these tight times.
Where the LCS has many fine replacements, the JSF has crowded out the development of real alternatives. The diplomatic/trade capital invested also makes it an impossible program to cancel without painful follow-on consequences. However, the billions saved from LCS could fund a quicker turnover to automated and integrated ComBot technology, creating an “AEGIS in the sky” of super-fast autonomous aircraft and ComBots on the ground integrated with our fighting men and women. It’s a future closer than you may think. These new automated systems could lead to new systems to take on LCS’s failed missions, such as brown-water ASW and mine-sweeping.
With the US’s new technologies, we rely heavily on space. It is a commons commanding the ultimate high ground from which we guide our weapons, communications, and our intelligence infrastructure. Less concrete, but existentially more important, we must continue our investment in the development and exploration of space. The United States, at its very essence, doesn’t represent a set of borders, we survive as an idea. Being a nation undefined by a border, we must constantly strive beyond them. When the US landed on the Moon, we didn’t represent just ourselves, but all humanity. Such is a cause and driving force behind our constant success… a dream. To abandon that dream, even worse to cede it to the likes of the PRC, would be tantamount to ideological suicide. We must re-invest in our manned space program. This is not in defense of our physical commons, but in the commons of ideas, something to believe in. Much like the JSF and LCS programs, we don’t believe anymore. We’re going through the motions. We need to regroup and find a real direction towards the future, because the PRC marching past us.
Matt Hipple is a surface warfare officer in the U.S. Navy. 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.
Last Spring, the guys at CIMSEC wrote a series on how 3-D printing would revolutionize naval logistics. Their vision is much closer to reality than science fiction. The nexus of on-demand fabrication and unmanned vehicles was recently demonstrated in small scale at a venue where one would least expect to see cutting edge military concepts tested. In another example of performance art-turned dual-use UAS military application, at the Burning Man Festival this year, a social entrepreneurship project called Blue Sky allowed visitors to scan an image of themselves, sculpt a miniature likeness of the person with a 3D printer, and deliver it to the consignee with an experimental octo-rotor UAV. Despite challenges with wind, dust, and safety, the proof of concept demonstration was a success.
The ability to print and deliver parts on demand locally and rapidly deliver them to forward operating forces will greatly streamline naval supply chains. Last December, the Marine Corps VMU-1 squadron began logistics deliveries to remote combat outposts in Afghanistan with an unmanned version of the K-Max dual rotor helicopter. A contracted manned K-Max variant had previously flown thousands of logistics missions for U.S. Navy ships during the 1990s. The Marines’ two unmanned K-Max vehicles delivered more than a million pounds of cargo between December and May and have were so successful the trials have been extended until 30 September.
