What are some of the ways the U.S. and other countries could defend maritime assets against swarms of Sea-Air drones? Consider a convoy system with human centered technology, algorithms from nature, and elements of gaming.
The FAA estimated that one million drones would be sold during this 2015 holiday season. This estimate was based primarily on the proliferation of flying drones, however new domains of operation may open up soon. Premiering in 2015, the Loon Copterproves that, in time, these devices will be capable of traditional aerial flight, on-water surface operations, and sub-aquatic diving. Embedded Systems Research at Oakland University created the Loon Copter in 2014. In 2016, the design placed third in the UAE Drones for Good competition. The system works in air as well as in water because the four rotors balance and cut through air and water equally well.
A map of nations with a drone program as of 2011. Courtesy Defense One, via RAND Corporation.
According tothe New America Foundation, at least 19 countries possessed or were acquiring armed drone technology as of 2015.The Washington PostandThe Aviationistreported in July of 2014 that even non-state actors like Hamas have manufactured drones capable of firing rockets or missiles. At the time of reporting it was unknown whether this specific group had the ability to launch missiles, but the story does show the willingness of non-state actors to weaponize technology. The same Washington Post article describes how low-tech“suicide” droneseffectively function as guided missiles. With the history of state actors increasingly acquiring armed drones and non-state actors weaponizing drones, Sea-Air drones could open new realms of battlespace.
“The profound influence of sea commerce upon the wealth and strength of countries was clearly seen long before the true principles which governed its growth and prosperity were detected.” –Alfred Thayer Mahan
Sea-Air drones are not currently available off the shelf, so their ramifications are not yet recognized. If non-state or state actors designed suicide drones with sufficient range, it would be very difficult to defend global maritime trade against these threats due to the sheer size of the oceans. The Canadian Military Journalhypothesized that it is only a matter of time before pirates use drones offensively. Articles like these contemplate an important issue, but are limited by only considering the skies. Currently, our ability to detect air drones far exceeds capabilities to detect devices beneath the surface of the ocean. Even by diving ten or fifteen meters beneath the surface, Sea-Air drones may be able to elude satellites. NASA’s Ocean surface topography site describes how the best satellites measuring ocean temperature pierce only one inch below the ocean’s surface.
Shrouded by shadowy depths, would-be aggressors could potentially take down or ransom large freight vessels and trade flows that are so essential to many countries’ survival. According to Rose George in “Ninety Percent of Everything,” nearly 90% of goods are transported by sea. The stakes are high and the arena is huge. While it’s unlikely that every inch of the sea will become a combat zone, NOAA estimates that there are nearly 321,003,271 cubic miles of water in the world’s oceans. To this end,DARPA is re-thinking distributed defense by creating small aircraft carrier cooperatives. In the face of such a large and deep strategic chessboard, what are some of the ways the U.S. and other maritime nations could defend shipping from Sea-Air Drones? One option would be to revive the convoy system. The tipping point for such a decision may have to unfortunately be a tragedy with lives lost at sea. By contemplating these scenarios now, we could build in defenses before deaths occur.
“When [the enemy] concentrates, prepare against him.” –Sun Tzu
The cost of drone technology, like other innovations, continues to decrease;beginners models are available for less than $100. As this trend is likely to also occur in the maritime arena, it would be wise to match high-value vessels with an accompanying group of friendly Sea-Air drones offering constant defensive protection. In other words, a convoy must have the ability to destroy or electronically neutralize attacking drones. A ship with a 24/7 security presence would likely be safer than standard battle group coordinated operations. This is because there are simply too many ships at sea at any given time to protect them all through traditional means. The International Chamber of Shippingestimates there are least 50,000 merchant ships plying the oceans at any given time. Having constant convoys would reduce vulnerability amidst the uncertainty of when, where, and how an enemy might attack.
These convoys could be combinations of complex programmable drones capable of truly autonomous decisions and human operated systems. The most successful formations might be inspired from millions of years of evolution and derived through phenomena like flocks of birds and schools of fish. In such swarms it would be possible to make a human operator the “lead,” balancing machine autonomy with human decision-making. To this end, P.W. Singer and August Cole’s futuristic Ghost Fleetnovel describes human helicopter pilots flying missions in conjunction with drones. The video belowshows many different formations that could be programmed for swarms.
In order to recruit talent, the defense community might consider incorporating crowd-sourcing and gaming to meet increasing demands, at least until convoy defense systems can function in fully automatized ways. Pilots could be given a convoy interface (like Eve Online) and point systems tied to real world rewards to incentivize behavior. With this approach, the U.S. could capitalize upon large reserves of talent to protect trade, coasts, and even fishing vessels. This is merely an opening suggestion. There would, of course, be clear difficulties with such a strategy, such as ensuring a clearance system, similar to that of the Merchant Marine, payments to operators, and contract stipulations surrounding the use of force. However, the proliferation of third-party defense contracting proves that new types of defense arrangements can be made quickly in the face of emergent threats.
It may be many years before Sea-Air drones, suicide drone piracy, and other forms of maritime threats emerge in full force. However, there are already clear modes of attack and high valued targets. The future may be hard to predict but that shouldn’t it preclude it from strategic thinking.
Jack Whitacre is an entrepreneur and former boat captain who studied international security and maritime affairs at The Fletcher School of Law and Diplomacy.
Well known authors and national security analysts Peter W. Singer and August Cole have together launched their inaugural novel, Ghost Fleet. The book contains all the components one would expect from a high tech future-war thriller: major power conflict, cyber militias, and biotech-enhanced warriors, to name a few highlights. And drones...lots of them. Unmanned naval systems in particular, play key roles throughout the book's action sequences. Some of the unmanned systems are already deployed, some are currently in development, and a few exist only in the authors' minds, but all appear to be technically feasible at some point in the near future.
A Littoral Combat Ship features prominently early in the plot. The LCS serves as a mothership for the Fire Scout UAVs and a REMUS AUV which the crew creatively uses as an offensive weapon. An embarked SAFFiR robot helps LCS sailors with damage control during a combat scene.
Several platforms in use today are adapted for new missions …
By Heiko Borchert On 15 December 2016, China seized an Ocean Glider, an unmanned underwater vehicle (UUV), used by the U.S. Navy to conduct oceanographic tasks in international waters about 50-100 nautical miles northwest of the Subic Bay port on the Philippines. Available information suggests that the glider had been deployed from USNS Bowditch and was captured by Chinese sailors that came alongside the glider and grabbed it “despite the radioed protest from the Bowditch that it was U.S. property in international waters,” as the Guardian reported. The U.S. has “called upon China to return the UUV immediately.” On 17 December 2016 a spokesman of the Chinese Defense Ministry said China would return the UUV to the “United States in an appropriate manner.” Initial legal assessments by U.S. scholars like James Kraska and Paul Pedrozo suggest the capture is violating the law of the sea, as the unmanned glider can be defined as a vessel in international maritime law that enjoys U.S. sovereign…
On December 15th 2016, the Chinese Navy seized an American unmanned underwater vehicle (UUV) operating in international waters off the Western coast of the Philippines. The USNS Bowditch, an unarmed T-AGS class hydro-graphic survey ship, was being shadowed by a People’s Liberation Army-Navy (PLAN) salvage vessel identified as a Dalang-III class (ASR-510). The UUV had surfaced as part of a pre-programmed instruction, and sent a radio signal marking it’s position for pick-up. As the Bowditch was preparing to recover the drone from the water, a small boat crew from the Dalang III raced in and plucked the unmanned vessel. The incident occurred approximately 50 nautical miles northwest of Subic, Luzon. While the exact type of drone is unknown, there have been several instances of U.S. NavySlocum Gliderssnagged in local fishermens’ nets or washed ashore on beaches in the Philippines. This type of drone is not weaponized, and is used to collect a variety of environmental readings such as wate…