On the same subject

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  August 10, 2020 | International, Aerospace

  Alaska-based long-range ballistic missile defense radar fielding delayed by a year

  By: Jen Judson WASHINGTON — The fielding of a U.S. Air Force radar to detect ballistic missile threats, currently being installed at Clear Air Force Station, Alaska, is delayed by roughly a year, according to a recent Government Accountability Office report. Information provided by the Missile Defense Agency in June to the GAO indicated all construction and integration activities for the Long Range Discrimination Radar had stopped in March due to the coronavirus pandemic. While initial fielding was planned for fiscal 2021 and transfer to the Air Force was planned for fiscal 2022, the service is now expected to take ownership of the operational radar in late fiscal 2023. “We did have some fallback in developing and delivery of systems because it requires people to be in close, confined spaces and sitting at computer terminals working through really tough problems like the development of an algorithm,” MDA Director Vice Adm. Jon Hill said at the virtually held Space and Missile Defense Symposium on Aug. 4. MDA shut down radar installation efforts due to the COVID-19 pandemic, entering a “caretaker status,” Hill said. “That requires additional work. I mean, you've got a radar that is being built in a tough environment like Alaska — you can't just stop. You have to go in and make sure the radar arrays are protected,” he added. The LRDR is an S-band radar that will not only be able to track incoming missiles but also discriminate the warhead-carrying vehicle from decoys and other nonlethal objects for the Ground-Based Midcourse Defense System, which is designed to protect the continental U.S. from possible intercontinental ballistic missile threats from North Korea and Iran. Lockheed Martin is LRDR's manufacturer. The program, according to the GAO report, wrapped up its system prototype assessment in an operational environment in FY19, which showed the hardware and software was mature ahead of full-rate manufacturing. That assessment was delayed from FY18, the report noted, after testing took longer due to “required antenna reconfigurations and software fixes to complete.” The fixes resulted in a cost overrun of $25 million and caused a delay in completing a developmental step associated with satellite tracking expected in FY18, according to the report. “While construction was ongoing in [FY19], the program was monitoring risks that could threaten the upcoming transfer of LRDR custody and ownership to the government,” the report stateed. “Specifically the program was focusing on manufacturing of the Array Panels, Sub Array Assembly Suite modules, and Auxiliary Power Group cabinets, as well as ensuring integration on site.” Those issues “depleted schedule margin on the path towards the transfer,” which was scheduled for the fourth quarter of FY20, according to the GAO, and the transfer of LRDR custody to the government was pushed back to the first quarter of FY21 due to radar component production issues. “The good news is construction is back up and running,” Hill said, “and we are delivering those arrays that are going into low-power and high-power testing later this year, so we are pretty excited about that.” According to the GAO, the current test plan for LRDR has just one flight test scheduled in the third quarter of FY21, after two ground tests. The report does not clarify if the pandemic has caused a delay in these tests. The GAO indicated concern about conducting two ground tests before the program's only flight test, as it “increases the likelihood that the models will not be accredited when testing is complete.” As a result, “the performance analysis and the majority of the model validation and accreditation will have to be made concurrently, just prior to the LRDR Technical Capability Declaration,” scheduled for the third quarter of FY21, the report stated. “This increases the risk of discovering issues late in development, which could result in performance reductions or delivery delays.” https://www.defensenews.com/digital-show-dailies/smd/2020/08/07/alaska-based-long-range-ballistic-missile-defense-radar-fielding-delayed-by-a-year/

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  March 2, 2020 | International, Aerospace

  Growing threat at high altitude: innovation to fight drones

  Over the past ten years, the growing availability of Unmanned Aerial Vehicles (UAV), commonly known as drones, has been a blessing for video enthusiasts and other tech addicts. But it also created a headache for safety authorities. To respond to this flourishing market, countermeasures are being developed in parallel, and represent a full-fledged business today. Very early after their appearance on the market, drones invited themselves on the battlefield. In 2014, the Islamic state was already using versions (Phantom 3 or 4) for reconnaissance. Then came the suicide drones, fitted with makeshift grenades. Conventional armies are also increasingly relying on them. If the United States used to have a quasi-monopoly on offensive UAVs at the beginning of the 21st century, countries such as China, Russia, and even Iran are constantly trying to fill the gap. In 2019, a wave of Iranian-made Qasef drones operated by the Houthi rebels took Saudi Arabia by surprise. Despite the presence of modern anti-aircraft missile systems such as the Patriot, the refineries of Abqaiq and Khurais, eastern Saudi Arabia, were heavily damaged, putting half of the country's oil production to a halt. Even in times of peace, UAVs can constitute a threat. In January 2019, drones caused a panic at London Gatwick Airport (LGW), United Kingdom, in the days preceding Christmas. The airport was closed for three days, creating a financial loss of several millions of pounds. The following months, less successful drone incidents also disturbed traffic at Changi Airport (SIN) in Singapore and at London Heathrow (LHR). To raise awareness of this danger and the lack of readiness, Greenpeace activists intentionally crashed several drones against French nuclear plants. A drone to rule them all In a similar fashion to the airports that have decided to rely on falconry to prevent birdstrikes, Fortem Technologies has decided to fight fire with fire. The US-based company offers several solutions to secure sites at risk from drone threats. A centralized system called SkyDome relies on an array of sensors, cameras and radars to monitor the surroundings and identify potential threats. The integrated artificial intelligence is capable of differentiating a bird from a drone, and to judge if the latter poses a threat or not. Once the threat is identified, SkyDome sends the HunterDrone capable to intercept the culprit and to fish it out of the air using a projectable net. Fortem Technologies has recently caught the interest of the U.S. Department of Defense (DoD). On February 3, 2020, the company announced it had been awarded a contract through the Defense Innovation Unit (DIU). While the price of the contract is unknown, it appears that the DoD chose to acquire the whole set of solutions. “Fortem has a number of technologies that can help protect military bases without adverse effects to local communities,” the manufacturer said. The Israeli company Rafael also offers a centralized system, but with a different solution. Named DroneDome (in reference to the Iron Dome that defends Israel from missile threats) it relies either on a precise jammer, or on a powerful laser. It was this system that put an end to Gatwick's mayhem. It was also used in 2018 to secure the G20 Buenos Aires summit. Man-portable solutions also exist. During the last national day in France, the military presented to the officials two anti-drone rifles (the Nerod F5 by the French-based MC2-Technologies and the DroneGun Tactical by the Australian company DroneShield). The purpose of those Star-Wars-like devices is not to destroy the enemy drones as one could expect, but to jam their signals. When they lose contact with their control base, drones usually go back to their takeoff point or stay in stationary flight until they run out of battery. That solution avoids for dangerous debris to fall and create collateral damages, for example onto a crowd during an event. https://www.aerotime.aero/clement.charpentreau/24617-growing-threat-at-high-altitude-innovation-to-fight-drones

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  September 6, 2023 | International, C4ISR

  Navigating a multi-cloud environment under the JWCC mandate

  The cancellation of the JEDI contract marked the end of single-source vendor contracts and the beginning of a multi-cloud era.