December 2, 2022 | International, Land
France qualifies Serval armored patrol vehicle variant for its Army
The green light signifies a step forward for realizing the ground service's large-scale Scorpion modernization program.
May 1, 2019 | International, C4ISR
DARPA Tests Advanced Chemical Sensors
DARPA's SIGMA program, which began in 2014, has demonstrated a city-scale capability for detecting radiological and nuclear threats that is now being operationally deployed. DARPA is building off this work with the SIGMA+ initiative that is focused on providing city- to region-scale detection capabilities across the full chemical, biological, radiological, nuclear, and explosive threat space.
DARPA initiated a SIGMA+ pilot study last year known as ChemSIGMA to provide initial data and insights into how new chemical sensors using the existing SIGMA network would function. The chemical sensor package incorporates a chemical sensor, wind sensor and communications board into a weatherproof housing. Sensors report wind readings and real-time chemical information to a central cloud-hosted suite of fusion algorithms.
“The algorithms were developed using a custom simulation engine that fuses multiple detector inputs,” said Anne Fischer, program manager in DARPA's Defense Sciences Office. “We built the algorithms based on simulant releases in a large metropolitan area – so we took existing data to build the algorithms for this network framework. With this network, we're able to use just the chemical sensor outputs and wind measurements to look at chemical threat dynamics in real time, how those chemical threats evolve over time, and threat concentration as it might move throughout an area.”
In the pilot study, DARPA researchers from MIT Lincoln Laboratory, Physical Sciences Inc., and Two Six Labs, built a small network of chemical sensor packages. In partnership with the Indianapolis Metropolitan Police Department, Indianapolis Motor Speedway, and the Marion County Health Department, DARPA's performer teams deployed the network on-site at the Indianapolis Motor Speedway in late April 2018.
The chemical sensor network and the data collected during events such as the 2018 Indianapolis 500 were critical to the DARPA effort, allowing the team to assess the performance of the sensors and network algorithms. These tests were conducted in an urban environment to ensure that the system could handle complex and stochastic signals from species that are ever present in a city's chemical background. Significantly, the network-level algorithm successfully improved system performance by correctly suppressing false detection events at the individual detector level. The group of DARPA researchers was also able to collect a large relevant data set and valuable user feedback that will guide ongoing system development efforts.
Further testing with safe simulant/concert smoke at Indianapolis Motor Speedway, August 2018
During additional tests in August 2018, a non-hazardous chemical simulant was released in the empty Indianapolis Motor Speedway at a realistic threat rate. Concert fog was also released to serve as a visible tracer. The propagation of the visible tracer was observed in aerial photography, and ChemSIGMA sensors and algorithms determined the release location with unprecedented accuracy. The web-based ChemSIGMA interface allows the user to view alerts in real time across a variety of devices. Multiple trials were conducted over the course of several days assessing performance over a variety of meteorological conditions. Releases occurred during daytime and nighttime with a full range of wind directions and speeds. The ChemSIGMA prototype system detected all of the simulant releases and generated zero false alarms over the course of testing.
Department of Defense simulant testing at Dugway Proving Ground, Utah, October 2018
“We're looking at how we might make this network more robust and more mature,” Fischer said. “For example, we implemented a network at Dugway Proving Ground as part of a DoD test for simulant releases, and have shown that the network can respond to a number of chemical simulant threats different than those used in Indianapolis, as well as built-in capabilities for mobile releases. Over the past few months, the team has used these data sets to further refine the algorithms, and plans to integrate and test them with the ChemSIGMA system in test events scheduled later this year.”
The successful pilot and simulant test of the ChemSIGMA system at the Indy500 and Dugway Proving Ground provided valuable, relevant, and realistic data sets for validation and verification of the source localization and plume propagation algorithms.
DARPA is currently extending the capabilities for networked chemical detection by advancing additional sensor modalities, including short-range point sensors based on techniques, such as mass spectrometry, and long-range spectroscopic systems. As these systems are further developed and matured, they will be integrated into the SIGMA+ continuous, real-time, and scalable network architecture to increase the system's capabilities for city-scale monitoring of chemical and explosive threats and threat precursors.
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January 2, 2020 | International, Naval
The US military ran the largest stress test of its sealift fleet in years. It’s in big trouble.
By: David B. Larter WASHINGTON — The U.S. military in September ordered the largest stress test of its wartime sealift fleet in the command's history, with 33 out of 61 government-owned ships being activated simultaneously. The results were bad, according to a new report. In an unclassified U.S. Transportation Command report posted to its website, the so-called turbo activation revealed that less than half of the sealift fleet would be fully prepared to get underway for a major sealift operation in a crisis. “The relatively low ... Qualitative Mission Success Rate indicates the Organic Surge Fleet is challenged to be immediately available for a large-scale inter-theater force deployment without delays/impacts to force closure due to degraded readiness,” the report read. The Dec. 16 report confirms what senior military and transportation officials have been saying for years now: that the sealift fleet is in urgent need of recapitalization if it is to be relied upon to support a large-scale operation overseas. In a crisis, nearly 90 percent of all Army and Marine Corps equipment would be carried by ship. The Navy is on the hook to pay for recapitalization, but it has so far failed to land on a strategy to do so. Overall, 40.7 percent of the 61 ships operated by Military Sealift Command and the Maritime Administration were fully ready to support a major sealift operation. Sal Mercogliano, a merchant marine and current professor at Campbell University who closely follows these issues, said the major equipment casualties are the driving factor that is dragging down readiness. “You had 22 out of the 61 ships in either C-5 or C-4 condition,” Mercogliano said. “C-5 means that you can't even leave the dock; C-4 means you can leave the dock but you are not in any condition to sail any real distance. In my ballpark, that's non-mission capable. So right off the bat you lose 22 of the 61 ships. Then of the 33 that they activated, nine of them had issues. Three of them were C-4 level. “So when you add together the ones that had issues with the ones that couldn't be activated, they're saying you can only really count on about 40 percent of the fleet to active when they are aiming for 85 percent.” Ultimately, the degraded status of the sealift fleet means that combatant commanders won't be able to count on its capacity for logistics support, Mercogliano said. “If you are Indo-Pacific Command, or you are Central Command, and you are counting on a certain amount of square footage available to you, that's going to have huge ramifications,” he added. In recent testimony, INDOPACOM Commander Adm. Phil Davidson said as much, saying his operational plans depend on logistics support. “Clearly recapitalization of our sealift system is going to be critically important, as it's aging out and really has propulsion plants that [are] expiring in capability and our ability to maintain them,” Davidson said. “It's [a] risk to our troops and all of our people that are forward in the region if there is any delay in our ability to deliver the logistics in accordance with the [operation] plans.” Manning concerns In a November interview prior to the compilation of the final report, Maritime Administrator retired Rear Adm. Mark Buzby told Defense News that the test validated the data they had on ship readiness and the Maritime Administration's ability to crew the vessels, which he has long maintained is enough for initial activation but would suffer during a prolonged effort. “I think given the scale of the test, as we've been saying, we are OK for doing initial manning for our ships when they are activated,” Buzby said. “Something that we couldn't test in this fairly short-term activation was the follow-on aspect. “We believe we have plenty of manning to man up the ships initially, get them past the sea buoy and get them on the mission. But the problem is going to manifest itself four to six months down the line when some of them want to rotate. Who is going to be standing on the pier ready to take their place? That's where we have a problem. You just couldn't show that in this activation.” One of the primary issues has been, as Davidson intimated, that many of the plants in the Ready Reserve Force are steam-operated plants, which are all but nonexistent in the commercial world, so it is increasingly difficult to find qualified engineers. Finding steam engineers went well for the turbo activation, Buzby said, but it proved difficult and will only become more so as fewer opportunities to retain updated certifications become available. In a 2018 interview with Defense News, Buzby described a shortage of personnel that would affect the sealift fleet's ability to operate for an extended period of time. The Maritime Administration, part of the Department of Transportation, estimates it has 11,768 qualified mariners with unlimited credentials available to crew the Ready Reserve Force, a number that just exceeds the needed total of 11,678 to operate both the reserve and commercial fleets at the same time. But that comes with a catch: This service is entirely voluntary. “Maritime Workforce Working Group estimates that there are sufficient mariners working in the industry to activate the surge fleet if the entire pool of qualified United States citizen mariners identified by MWWG are available and willing to sail when required,” the report read. “This assumption is of paramount importance given the voluntary nature of mariner service.” Furthermore, that number is just what it would take to activate the ships and temporarily operate them. If the nation needed to sustain a large-scale effort, it would soon begin to falter. “We are about 1,800 mariners short for any kind of long-term sustainment effort,” Buzby said. “We believe we have enough today to activate all the ships we would need to activate. ... But anything less than an all-of-nation effort ... where everyone who went out to sea, stayed at sea, we start to run short of people as we rotate.” https://www.defensenews.com/naval/2019/12/31/the-us-military-ran-the-largest-stress-test-of-its-sealift-fleet-in-years-its-in-big-trouble/
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November 8, 2018 | International, Aerospace
Companies line up to deliver Turkey hundreds of micro drones
By: Burak Ege Bekdil ANKARA — The Turkish government has launched a competition to buy hundreds of multi-rotor micro drones, with scores of local companies having already expressed interest. SSB, Turkey's procurement authority, has said that the planned drones would be used in homeland security missions like search and rescue, surveillance and reconnaissance, remote sensing and mapping. An SSB official said all drone programs come with a “priority” tag. Under the multi-rotor micro drone program, SSB will procure a total of 499 units. Twenty-two companies have replied to SSB's Request for Proposal (RfP). “The level of interest [in the contract] and potential competition during the race reflects the vibrancy of Turkey's fast-growing drone industry,” said Özgür Ekşi, an analyst with C4Defense.com, a defense industry specialist. “Especially when you think that only a decade ago there was not a single drone maker in the country.” Turkey has long prioritized developmental and operation of unmanned systems for its military and for export. The Turkish military was largely dependent on the Israeli-made Heron unmanned aerial vehicles in its fight with Kurdish insurgents in early 2000s when the government-controlled Tusas Turkish Aerospace Industries (TAI) started working on the Anka, Turkey's first indigenous drone. In 2013 TAI won a contract from the Turkish government to supply 10 Ankas and ground control stations. The Anka, a medium-altitude, long-endurance drone, can fly at an altitude of 30,000 feet for 24 hours and can carry up to 200 kg payload. TAI later developed the armed and satellite-controlled versions of the Anka as the country's dependency on drones in its asymmetrical warfare against Kurdish insurgency deepened. The Anka has paved the way for the entry into the market of private sector players. Kale-Baykar, a consortium, has successfully developed the Bayraktar TB-2, a drone system that comes in unarmed and armed versions, and delivered to the military six systems in 2017. The Bayraktar uses the MAM-L and MAM-C, two mini smart munitions developed and produced by state-controlled missile specialist Roketsan. Turkey's local industry also is developing BSI-101, a SIGINT system, for the Bayraktar to end Turkey's dependence on U.S.-made SIGINT systems for drones. The Bayraktar can fly at a maximum altitude of 24,000 feet. Its communications range is 150 kilometers. The aircraft can carry up to 55 kilograms of payload. “We encourage private companies to spend more on drone R&D and come up with solutions cut for our specific (mostly asymmetrical) requirements,” said one procurement official. “there is a lot of activity going on and the market will deepen in quantity and quality in the years ahead.” Ekşi from C4Defence.com said: “Twenty-two local bidders in a relatively small drone competition is a sign that the market, infant by age, will flourish soon.” https://www.defensenews.com/global/europe/2018/11/07/companies-line-up-to-deliver-turkey-hundreds-of-micro-drones