Category Archives: Drones

Development, testing, deployment, and use of drones.

Non-Traditional Drone Motherships

Kingfishing off the Coastal Command Boat
               Kingfishing off the Coastal Command Boat

Earlier this week, guest blogger Mark Tempest posted some interesting ideas on low cost alternatives to traditional combatants that could be configured to carry unmanned surface vehicles, playing on the idea that payload truly is more important than platform. These concepts are unorthodox, though as Mark points out, not unprecedented. In a time of shrinking budgets and smaller fleets, the navy should explore how to optimize various combinations of ships and the unmanned vehicles they will carry, with an eye towards both effectiveness and efficiency. Mine counter-measures is an important, though often short-changed mission, with various trade-offs between payload and platform.

Between the Littoral Combat Ship “seaframe” and mission modules, the U.S. Navy has invested billions of dollars in R&D and acquisition money to develop (though still not fully) the capability to conduct off-board, unmanned mine counter-measures. LCS will carry the Remote Minehunting System, a rather large, complex, diesel-powered snorkeling vehicle which has been under development for about two decades. RMS is designed to tow a side scan sonar in order to detect mines. Contrast that arrangement with the Coastal Command Boat, pictured here with an embarked Kingfish, an unmanned underwater vehicle which essentially performs the same job as the RMS with its synthetic aperture sonar. The CCB, or the follow-on MK VI patrol boat can carry two of these UUVs. A well deck equipped amphibious ship (LPD, LSD, LHD) could be configured to carry multiple MK VIs, resulting in the ability to rapidly deploy several UUVs over a wide area at any given time. Additionally these patrol boats, or as Mark suggests, another Craft of Opportunity, could be forward deployed or prepositioned in various overseas ports, including ones too small or too politically sensitive to station a larger combatant. An LCS can bring an MCM capability to a mine field at 40 knots, much more rapidly than dedicated MCM ship. A C-17 with patrol boats and a UUV Det can transport MCM package at 10 times that fast. Certainly there are other trade-offs in capability, cost, and versatility in all these options.

Given these emerging MCM alternatives, future fleet experimentation to identify other payload/platform configurations that can achieve the same operational results as the LCS/RMS package in a more affordable manner is certainly warranted. Because of the relatively low cost involved in these platforms and UUVs, the answer doesn’t have to be all or none and more than one alternative can be pursued without breaking the bank.

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

Drone Pilots: Statistically, On the Front Lines

The battlefield is not the only place our defenders die.
The battlefield is not the only place our defenders die.

Within the Air Force, there is no cow more sacred, no shibboleth greater, than the glory that is the manned fixed-wing combat aircraft. While even the most obstinate fighter pilot might be willing to concede that unmanned aircraft will necessarily make up the majority of a future force, such pallid (even bloodless) prospects are loudly lamented. Valor and heroism cannot be had from an armchair; Sic transit gloria Air Force.

Within the Air Force, it is the danger and thrill of piloting (and the concomitant safety and tedium of remote combat) that justifies the continued marginalization of the RPA community from promotions and awards. Certainly, flying RPA is less exciting than flying a F-18. But, as a career, is it actually that much less dangerous?

It’s not hard to imagine, early one morning, an IED going off on the road to Creech AFB, blowing up a commuter bus full of RPA pilots on their way to work. How different would the conversation about a “drone medal” have been in the wake of significant combat casualties? Such a scenario isn’t just possible – it’s one America’s enemies are actively trying to bring about.

Critics might say that this is just a hypothetical, which is true. It’s exactly as hypothetical as a fast-mover being brought down by enemy fire in post-invasion Iraq or Afghanistan, which is to say that it’s a possibility which has never occurred. For these two wars, “combat risk” has been as hypothetical for F-16 pilots in Iraq as for RPA pilots in Nevada. But even if we accept that fixed-wing combat aircraft are working in a very low risk combat environment in Iraq and Afghanistan, what about all the other dangers of flying? While, a differential risk analysis still supports the conclusion that flying RPA in combat is only marginally less dangerous than flying manned fixed-wing combat aircraft.

Now, I can almost hear the jaws of fighter jocks hitting the floor. How could armchair warfare approach the danger of conducting close air support over hostile territory? The answer is: cumulatively. Now, the Air Force should be more amenable to this line of thinking than the other branches of the armed services. During WW2, the Bronze Star was created to raise the morale of infantrymen who were disheartened by the Air Medal. As George Marshall said in a memo to Roosevelt, infantrymen “lead miserable lives of extreme discomfort and are the ones who must close in personal combat with the enemy.” And yet, this viewpoint mostly originates from a skewed view of what risk is. It’s true that your average WW2 infantryman faced individual moments of tremendous danger, punctuating long bouts of boredom. Given the personal courage required to maintain effectiveness in the face of the enemy, it is easy to see why infantrymen could be dispirited by medals going to bombardiers flying safely miles above the battlefield. But, while the risk of any particular bombing mission was relatively low (over Germany, about 5%), it was the cumulative risk that was so valorous – only one crewman in six was expected to survive his tour intact. The courage of the infantryman consisted in doing an exceptionally dangerous thing a few times; the courage of a bombardier, in doing a mildly dangerous thing many times.

If the modern student of war can understand why the infantryman’s courage cannot be privileged over the air crewman’s, he can come to see why the manned pilot’s valor cannot be preferred to the unmanned, in both the current wars and the wars to come. First, combat looks very different in asymmetrical wars like Iraq and Afghanistan. In twelve years of combat, we’ve lost a whopping one fighter jet to hostile fires in the air, in 2003. In both wars, we’ve lost a total of 18 fixed-wing fighter aircraft (almost all due to human errors or mechanical failure), and six of those pilots have died. Although each of these deaths is tragic, six fatalities in two wars over twelve years is hardly an epidemic, and these deaths account for a tiny fraction of all airmen who have died over these twelve years.[1] Moreover, only one of these deaths was caused by enemy fire, largely due to the fact that, since 2003, the enemy has had zero capability to shoot down fast-movers. From a statistical standpoint, since the defeat of Saddam’s air defense weaponry, ~0% of the risk to manned fixed-wing combat aircraft has come from enemy fires –  all of the risk is due to the general risks associated with flying. This is not to say that flying is not dangerous – over the past ten years, there have been an average of 8.2 fatalities a year (though most of those fatalities come from multi-death incidents). But for fast-movers in particular, none of the risk comes from combat or deployment.

What then, are the primary dangers to airmen? The data unequivocally says motor vehicle accidents (52 fatalities in 2012) and suicides (over 100 in 2011), [2] and on the rise) kill the most airmen every year. Nor are these two kinds of casualties equally distributed across occupations. Because most of the data is hard to get at, the following are sketches of arguments, suggestive evidence open to empirical verification.

Ironically, one of the “perks” of being an RMA operator – not deploying and instead commuting to work every day – almost certainly will, over time, kill more operators than flying manned planes would. According to a NATO morale survey[3], a significant number of Reaper/Predator pilots complained about the long commutes to the bases where they work (meaning they had commutes of over an hour). Combined with high levels of work-related stress, long shifts for months on end, and unhealthy sleep schedules, this driving substantially raises the risk of a vehicular accident (though exactly how high, it’s difficult to say). Manned fixed-wing pilots have some of the same work issues as unmanned pilots, of course, except that they are deployed for months at the time when their occupational stress is the highest (and when they would have the highest work-induced risk factors for a vehicular accident). It’s a little counterintuitive, but when your main job (flying combat sorties) has become surprisingly safe, the risk starts to come from weird, other factors.

Now, I don’t mean to suggest a perfect equivalence between a pilot who dies in a car crash on his way to work and one who dies flying in an operation over Iraq (rare as that is). But risk analysis demands that we also take lots of small risks over time to be serious and meaningful. An airman fatigued from piloting a Predator for 12 hours straight who dies in a crash at 2am on his way home from Creech AFB has “paid the ultimate price” just as surely as a disoriented F-18 pilot who makes a fatal maneuver. And some of the risks from driving that airmen face are operational –they come from the pace and intensity of their work. [4]

While added driving risk is difficult to tease out, suicide provides a much more personal face to a 21st century understanding of what combat risk is. Our wars in Iraq and Afghanistan might be the first in history where the number of suicides exceeds the number of combat deaths. Because that the Air Force doesn’t publish casualty breakdowns by Air Force Specialty Code (though a FOIA request might dislodge them), it’s impossible to say what the suicide rate amongst only pilots has been. But we do know some things about it from other research.

Mostly, we know that the suicide rate amongst pilots (RPA and Manned) is lower than the rest of the Air Force; pilots are officers and are selected for physical, mental and moral capabilities, both of which reduce risk factors for suicide. But, of course, the risk factors for individual pilots vary depending on their circumstances. One of the biggest risk drivers of suicide for veterans is PTSD, which one study showed to make someone ten times more likely to successfully commit suicide.[5] And a number of recent studies have shown that RPA pilots are at an increased risk of PTSD and work-related stress. A NATO study found low morale and high levels of operationally-induced stress in Pred/Reaper crews.[6] More significantly, a retrospective cohort survey found that RPA pilots have higher levels of PTSD and other mental health diagnosis compared to manned pilots.[7] Absolutely, they face a 60% increased chance (in this admittedly limited survey) of a mental health issue, although adjustments for age and experience brought that number back towards the baseline.

PTSDDronesUnfortunately, despite a fairly extensive search of the data available online, it’s hard to drill down more on the number of suicides afflicting pilots. But it’s sort of irrelevant, because I can still lay out my basic conceptual case for a new way of thinking about risk. The case that being an RPA pilot isn’t much less dangerous than being a fighter pilot is pretty simple. In low-intensity conflicts like Iraq and Afghanistan, the hostile fires-risk part of a fighter pilot’s job approaches zero, leaving only the risk of flying (~1 Class A mishap/100k flight-hours). On the other hand, while a lot of the data is still coming in, we know that being an RPA pilot carries its own set of real, physical risks. The geographical placement of AFBs where RPA pilots work and the increased stress of their jobs takes a physical toll. Over time, those risks will add up to deaths. Given that, for fighter pilots in particular, the going fatality rate seems to only be about 1-2 per year, it is logical to conclude that the combination of increased motor vehicle risk and suicide risk could render RPA more dangerous than flying, over time. This hypothesis is empirically testable (albeit using data the Air Force hasn’t made available), and it may be worth following up on this post with further research.

This analysis also makes a broader point. The Air Force has reached a point where heroism can no longer really be understood by amounts of physical risk. Though outside the scope of this post, enlisted AF technicians who deployed to Iraq and Afghanistan and whose duties took them outside the wire were manifestly more subject to combat risk than the pilots deployed to support OEF and OIF. We have been fighting wars where physical risk has not necessarily most heavily accumulated to those doing the actual killing (e.g. C-130s, not F-15s, are subject to hostile fire). What this reveals is something that was probably true all along. We need to stop idolizing risk and realize that we should make heroes who look like the excellences we need. The sacrifices that C-130, F-18, and MQ-9 pilots make to perform excellently and serve their country well are all going to look a little different. It’s long past time to stop privileging one view of heroism.

 

[2] Many accidents are actually suicides. Cf. Pompili et al (2012), Car accidents as a method of suicide: a comprehensive overview, Forensic Sci Int.

[3] Psychological Health Screening of Remotely Piloted Aircraft (RPA) Operators and Supporting Units, 2011

[4] Combat exposure, too, has a role to play (http://www.journalofpsychiatricresearch.com/article/S0022-3956(08)00003-4/abstract).

[5] Gradus et al (2010), “Posttraumatic Stress Disorder and Completed Suicide”, Am J of Epidemiology.

[6] Psychological Health Screening of Remotely Piloted Aircraft (RPA) Operators and Supporting Units, 2011

[7] Otto et al (2013), “Mental Health Diagnoses and Counseling Among Pilots of Remotely Piloted Aircraft in the United States Air Force”, MSMR.

 

New UUV Mothership Hits the Fleet: The Coastal Command Boat

CCB3The U.S. Navy recently introduced the new 65-foot Coastal Command Boat (65PB1101, or CCB) into the fleet.  Among other maritime security missions, the CCB will test new concepts in employing unmanned underwater vehicles.  The one-of-a-kind vessel was developed following a 2008 Congressional earmark for $5 million.  After a transit from its building location in Bremerton, the SAFE Boat-manufactured CCB arrived in Coronado, California in August, where it been assigned to Coastal Riverine Group 1 (CRG-1).  The CCB is a preview of the Navy’s upcoming 85-foot Mark VI patrol boats, six of which have been planned for delivery in FY13/14.

The boat has been configured to operate the MK 18 Mod 2 Kingfish UUV for mine counter-measures operations.  Two of the 800-pound, 12-inch diameter UUVs sit in cradles on the stern of the CCB and are launched with the boat’s hydraulic crane.  The Navy is considering deploying the CCB to the Middle East for operational testing sometime in the next year.  Operating up to day-long missions from a shore base or even the well deck of a larger amphibious mothership, the CCB and MK VI PBs will deploy multiple mine-hunting UUVs. 

The Navy has also tested the man-portable SeaFox mine neutralizer from rigid-hull inflatable boats (RHIBs).  If equipped with SeaFox, the CCB and MK VI could not only find, but clear, detected mines, a capability that today is conducted with much larger dedicated mine countermeasures ships.

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

Unmanned Naval Helicopters Take Off in 2013

Manned (SH-60B) and unmanned (MQ-8B) helicopters working together on USS Halyburton (FFG 40)
Manned (SH-60B) and unmanned (MQ-8B) helicopters working together on USS Halyburton (FFG 40)

The carrier take-off and arrested landings of the U.S. Navy’s X-47B demonstrator have garnered significant press attention this year.  Less noticed however, is the rapid development of rotary-wing unmanned aerial vehicles in the world’s navies.  Recent operational successes of Northrop Grumman’s MQ-8B Fire Scout aboard U.S. Navy frigates have led to many countries recognizing the value of vertical take-off and landing UAVs for maritime use.

International navies see the versatility and cost savings that unmanned rotary wing platforms can bring to maritime operations.  Like their manned counter-parts, these UAVs conduct a variety of missions including intelligence, surveillance, and reconnaissance (ISR); cargo resupply/vertical replenishment; and in some future conflict will perform armed interdiction at sea.  However, unlike the two- or three-hour endurance of manned helicopter missions, some of these UAVs can fly 12-hour sorties or longer.  Other benefits include the ability for some models to land on smaller decks than manned aircraft, a much lower cost per flying hour, and importantly, limited risk to human aviators.  Several international VTOL UAV projects have been recently unveiled or are under development, many of them based on proven light manned helicopter designs.  Starting with a known helicopter design reduces cost and technical risks and allows navies to pilot the aircraft in no-fail situations involving human passengers such as medical evacuations.

Poland has two designs in the works, the optionally manned SW-4 SOLO and the smaller composite ILX-27, which will carry up to 300 kg in external armament.  In July, the Spanish Navy announced  a contract with Saab to deploy the Skeldar V-200 unmanned air system aboard its ships for counter-piracy operations in the Indian Ocean.

Russia’s Berkut Aero design bureau, in collaboration with the United Arab Emirate’s Adcom Systems have announced plans to develop an unmanned combat air vehicle (UCAV) based on Russia’s two-seat coaxial Berkut VL helicopter.

One of Schiebel’s rapidly proliferating S-100s mysteriously crashed in al-Shabaab-held Southern Somalia earlier this year, but in a successful turn-around, Camcopter S-100 conducted at-sea trials with a Russian Icebreaker in the Arctic later this summer.

Back on the American front, in July, Northrop Grumman delivered the Navy’s first improved MQ-8C, a platform largely driven by U.S. Special Operations Command’s requirements for a longer endurance ship-launched aircraft capable of carrying heavier payloads including armament.  The Marine Corps’ operational experimentation in Afghanistan with two of Lockheed Martin/Kaman’s K-MAX unmanned cargo-resupply helicopters from 2011 until earlier this year was largely successful, but suspended in June when one of the aircraft crashed while delivering supplies to Camp Leatherneck in autonomous mode.  Because of this setback, Lockheed has improved K-MAX’s autonomous capabilities, and added a high-definition video feed to provide the operator greater situational awareness.  Kaman has also begun to market the aircraft to foreign buyers.  Finally, a Navy Research Laboratory platform, the SA-400 Jackal, took its first flight this summer.

There are minimal barriers to VTOL UAVs wider introduction into the world’s naval fleets over the next few years.  How much longer will it take for their numbers to exceed manned helicopters at sea?

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