F-15EX Radar Win Buoys Raytheon Market Hopes

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  October 1, 2018 | International, Land

  With an increasing footprint in the Arctic, the Corps may need a new snow vehicle

  By: Shawn Snow The top Marine has been steadily increasing the Corps' footprint in the arctic region, preparing Marines for a fight in extreme cold-weather environments as the U.S. defense strategy shifts toward near-peer threats. It's an oft repeated remark by Commandant Gen. Robert B. Neller that the cold weather business is something the Corps hasn't done for some time. And it certainly shows in some of the equipment the Corps uses in Norway, like the nearly 40-year-old Cold War relic over-the-snow vehicle, the Bv206. The Corps has been rapidly replacing its cold-weather gear to include skis, pack frames, boots and shelters. And now, a new over-the-snow vehicle could be on the horizon for the Marines. One potential replacement for the aging Bv206 could be BAE's BvS10, which is already in use by Marines in Norway, who have been training on the British variant of the BvS10 known as the Viking. The BvS10, while predominantly suited for the Arctic region, is actually an all-terrain vehicle that can also traverse mud, swamp, gravel or even water. The tracked vehicle, which can carry 11 to 12 troops, has a ground pressure less than the human foot, according to Keith Klemmer, BAE's U.S. BvS10 representative. The low ground pressure spread across the tracks gives the vehicle superior mobility in a multitude of terrains, especially snow. And for military operations, the BvS10 can mount the Ma Deuce .50 caliber machine or even the Common Remotely Operated Weapon Station, which affords troops the ability to engage targets from the protections and confines of the vehicle. Speaking of protection, the armor plating on the BvS10 can withstand small-arms fire and the RPG-7, Klemmer said. The Bv-S10 can operate in temperatures ranging from -50 to 120 degrees Fahrenheit and boasts an impressive range of nearly 200 miles, according to Klemmer. While the Corps is prepping for its fourth six-month rotation to Norway, it's only been recently that the Corps and the U.S. military has once again focused on the Arctic and European theaters. For the past twenty years, the desert terrain of the Middle East has garnered the attention of the Corps and as a result, the military's fleet of over-the-snow vehicles have taken a back seat in priority. But with a renewed spotlight on the Arctic region, and a Marine footprint that is expected to double in Norway in the coming months, the time may be ripe to upgrade the Corps' suite of snow vehicles. And the U.S. military is showing interest. In early June, the Army posted a request for information, or RFI, to industry leaders for what it has dubbed the Joint All Weather All Terrain Support Vehicle, or JAASV. According to the RFI, the Army wants its future tracked snow vehicle to operate in temperatures between -50 and 115 F. And the Army wants a multi variant vehicle that can carry troops, serve as an ambulance, or a command system. The BvS10 fits much of that description. The main cab can serve as a command node, while the back cab can transport nearly eight troops. The rear cab also has the ability to flip up and serve as an ambulatory vehicle. “The JAASV shall be a tracked vehicle that has excellent on and off-road mobility in extreme cold temperatures, deep snow, rugged uneven terrain, thick brush or forest, soft wet ground, rivers, streams, and lakes, and mountainous terrain,” the RFI reads. The Army also wants the JAASV to be air mobile by CH-47, UH-60 and C-130. And while this RFI was submitted by the Army, the Corps has a tracked record of partnering with the Army on a number of procurement projects. The Corps hasn't made a decision yet to upgrade its snow vehicles, but the Marines are increasingly becoming focused on the Arctic domain and its forces are already learning how to operate partner forces' BvS10s in the region. https://www.marinecorpstimes.com/news/your-marine-corps/2018/09/28/with-an-increasing-footprint-in-the-arctic-the-corps-may-need-a-new-snow-vehicle

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  July 27, 2021 | International, Aerospace, C4ISR, Security

  How To Tackle The Space Sector’s Cyber Challenge | Aviation Week Network

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  January 18, 2021 | International, Aerospace, C4ISR

  Secrets of Tempest’s ground-breaking radar revealed

  Tom Kington ROME — Radar engineers on the Tempest fighter program have said they expect to break data-processing records. The secret, they explain, is all about miniaturization and going digital. The sixth-generation jet — planned by the U.K., Sweden and Italy and set to enter service after 2030 — will bristle with new technology, from its weaponry and propulsion to a virtual cockpit projected inside the pilot's helmet. But the group set the bar high in October by announcing the fighter's radar would process a quantity of data equivalent to nine hours of high-definition video — or the internet traffic of a medium-sized city — every second. Few details were given to back up the claim, but now U.K.-based engineers with Italian firm Leonardo, who are working on the radar, have shared clues with Defense News. Boosting performance will mean rethinking today's electronically scanned radars, which have grids of small Transmit Receive Modules, or TRM, on the antenna, each generating an individual radar beam which can follow different targets or combine with others to create a larger beam. The TRMs in the array are formed into groups, and the signals received by each group are fed to a receiver which digitalizes the data before passing it to the radar's processor. Due to their size, the receivers must be positioned back from the aircraft's nose and accept the incoming analogue radar signal down coaxial cables, which incurs some data loss before the signal is digitalized. To remedy that, Leonardo is working on miniaturizing the receivers so they can be moved up into the nose and integrated within the antenna, cutting out the need for a coaxial cable. The data emerging from the receiver must still travel to the processor, but by now it is digital and can flow down fiber-optic cables, reducing data loss. “Miniaturized receivers can digitalize the signal within the antenna much earlier in the receive chain,” said chief engineer Tim Bungey. That's one step up from the new state-of-the-art European Common Radar System Mark 2 radar that BAE Systems and Leonardo have signed to deliver for RAF Eurofighters, which will use coaxial cables. “Digitalizing the data closer to the array means more data can be received and transmitted, the data can be more flexibly manipulated, and there is more potential for using the radar as a multi-function sensor such as for data linking and for electronic warfare,” said Bungey. There is also a second advantage to miniaturized receivers: Many more can be installed, meaning each one handles fewer TRMs. “To improve performance and flexibility within the system, a key challenge is to divide the TRMs into more groups containing fewer TRMs, handled by more receivers,” said Bungey. “By achieving that, together with supporting wider bandwidths, you can generate significantly more data, giving greater flexibility for beam steering and multi-function operation,” he added. “We are aiming to increase the number of groups of TRMs, and therefore the number of receivers, beyond what will be offered by the MK2 radar for Eurofighter,” he added. While the radar may push the envelope, Duncan McCrory, Leonardo's Tempest chief engineer, said it would be a mistake to consider it as a stand-alone component. “The MRFS will be integrated within the wider Tempest Mission System, which incorporates a full suite of electronic-warfare and defensive-aids capabilities, EO/IR targeting and situational awareness systems, and a comprehensive communications system.” he said. “The data captured by these systems will be fused to create a rich situational awareness picture for the aircrew,” he added. “This information will also be fused with data received from other aircraft and unmanned systems, with machine learning used to combine and process the overall situational awareness picture for the aircrew. This avoids information overload in the cockpit, enabling the aircrew to quickly absorb data and make decisions based on suitably processed and validated information, and rapidly respond to threats in highly contested environments,” he said. McCrory added that Leonardo demonstrated aspects of human-machine teaming recently in a trial organized with the British Army and the MoD's Defence Science and Technology Laboratory, in which a Wildcat helicopter crew tasked a semi-autonomous UAV provided by Callen-Lenz to gather imagery and feed it back to the cockpit display via datalink. “It is these human-machine teaming principles that we will be building upon for Tempest,” he said. “The MRFS will be integrated within the wider Tempest Mission System, which incorporates a full suite of electronic-warfare and defensive-aids capabilities, EO/IR targeting and situational awareness systems, and a comprehensive communications system.” he said. “The data captured by these systems will be fused to create a rich situational awareness picture for the aircrew,” he added. “This information will also be fused with data received from other aircraft and unmanned systems, with machine learning used to combine and process the overall situational awareness picture for the aircrew. This avoids information overload in the cockpit, enabling the aircrew to quickly absorb data and make decisions based on suitably processed and validated information, and rapidly respond to threats in highly contested environments,” he said. McCrory added that Leonardo demonstrated aspects of human-machine teaming recently in a trial organized with the British Army and the MoD's Defence Science and Technology Laboratory, in which a Wildcat helicopter crew tasked a semi-autonomous UAV provided by Callen-Lenz to gather imagery and feed it back to the cockpit display via datalink. “It is these human-machine teaming principles that we will be building upon for Tempest,” he said. As Tempest development proceeds, McCrory said design of the integrated mission system was proceeding in parallel with the design of the aircraft itself. “We are effectively designing the aircraft from the inside out; by this I mean we are working closely with the MoD to understand future sensing, communications and effects capability requirements, and then working with the Team Tempest partners to ensure the aircraft can accommodate and support the required avionic systems.” Leonardo is working with BAE Systems to ensure the airframe will accommodate sensors, with Rolls Royce to ensure there is sufficient powering and cooling for the systems, and with MBDA, said McCrory, “to give weapons the best available data prior to launch, and to keep them informed after they are released and receive data back from them as they progress towards the target.” https://www.c4isrnet.com/home/2021/01/15/secrets-of-tempests-ground-breaking-radar-revealed/