Northrop eyes low-rate production contract for B-21 this year

Sur le même sujet

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  18 octobre 2018 | International, Aérospatial, C4ISR

  Air Force looks for help on new, hard-to-jam, satellite waveform

  By: Adam Stone In the face of a rising near-peer threat to electronic communications, the Air Force is pressing forward with efforts to develop a new, more resilient, harder-to-jam waveform that soldiers could use on the battlefield. The service expects to receive responses from industry soon on a recent request for information around protected satellite communications. The request sought industry guidance on how best to implement a new, more resilient protected tactical waveform (PTW), which enables anti-jamming capabilities within protected tactical SATCOM. “The Air Force is looking to protect our warfighter's satellite communications against adversarial electronic jamming,” the Air Force's Space and Missile Systems Center (SMC) said in a written statement to C4ISRNet. The threat comes from “adversarial electronic jammers that are intended to disrupt and interfere with U.S. satellite communications,” leaders at SMC said. Protected tactical SATCOM is envisioned to provide worldwide, anti-jam communications to tactical warfighters in benign and contested environments. The quest to solidify satellite communication links has taken on increasing urgency in recent years. As satellite communications has emerged as an integral component in the military's command and control infrastructure, potential adversaries have stepped up their ability to disrupt such links. “Tactical satellite communications are vital to worldwide military operations,” the agency noted. “Our adversaries know this and desire to disrupt U.S. satellite communications. The Air Force is fielding Protected Tactical SATCOM capabilities to ... ensure warfighters around the globe have access to secure and reliable communications.” Industry is expected to play a key role in the development and deployment of any new waveform. Officials at SMC said that early prototyping efforts will be conducted through the Space Enterprise Consortium (SpEC), which is managed by Advanced Technology International. SpEC acts as a vehicle to facilitate federally-funded space-related prototype projects with an eye toward increasing flexibility, decreasing cost and shortening the development lifecycle. The organization claims 16 prototype awards to date, with some $26 million in funding awarded. Understanding the protected tactical waveform Government documents describe PTW as the centerpiece of the broader protected tactical SATCOM effort, noting that it provides “cost-effective, protected communications over both military and commercial satellites in multiple frequency bands as well as broader protection, more resiliency, more throughput and more efficient utilization of satellite bandwidth.” A flight test last year at Hansom Air Force Base suggested the emerging tool may soon be ready to deliver on such promises. While SMC leads the PTW effort, Hanscom is working in collaboration with MIT Lincoln Laboratory and the MITRE Corp. to conduct ground and airborne terminal work. Researchers from MIT's Lincoln Laboratory flew a Boeing 707 test aircraft for two and a half hours in order to use the waveform in flight. With a commercial satellite, officials gathered data on the PTW's ability to operate under realistic flight conditions. “We know this capability is something that would help our warfighters tremendously, as it will not only provide anti-jam communications, but also a low probability of detection and intercept,” Bill Lyons, Advanced Development program manager and PTW lead at Hanscom, said in an Air Force news release. The test scenario called for the waveform to perform in an aircraft-mounted terminal. Evaluators were looking to see whether its systems and algorithms would function as expected in a highly mobile environment. “Everything worked and we got the objectives accomplished successfully,” Ken Hetling, Advanced Satcom Systems and Operations associate group leader at Lincoln Laboratory, said in an Air Force press release. “The waveform worked.” Asking for industry input should help the service to chart its next steps in the development of more protections. While the request does not specify when or how the Air Force intends to move forward, it is clearly a matter not of whetherthe military will go down this road, but rather when and how. https://www.c4isrnet.com/c2-comms/satellites/2018/10/05/air-force-looks-for-help-on-new-hard-to-jam-satellite-waveform/

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  22 mars 2021 | International, Naval

  Proposed US submarine-hunting plane prompts hand-wringing in Germany

  The U.S. government has cleared the sale of five P-8A maritime patrol aircraft to Germany, but Berlin is nowhere near ready to make a decision on the $1.8 billion purchase.

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  28 septembre 2018 | International, Aérospatial

  Russia plans to arm its most advanced fighter with new hypersonic air-to-air missiles meant to cripple the F-35 stealth fighter

  Ryan Pickrell Russia's most advanced fighter jet, the Sukhoi Su-57, will reportedly carry the hypersonic R-37M long-range air-to-air missile, a new weapon with the ability to strike targets hundreds of miles away. The Chinese are developing similar systems for their fighter jets. These weapons, assuming US rivals can take them from testing to deployment, could pose a threat to rear support aircraft such as early warning and aerial refueling aircraft, key force multipliers for American jets like the F-35 Lightning II Joint Strike Fighter. Russia reportedly plans to arm its most advanced fighter jet with a powerful hypersonic air-to-air missile that can take aim at aircraft nearly two hundred miles away, making them a potential threat to critical US air assets. The Su-57 multipurpose fighter jet, a fifth-generation stealth fighter built for air superiority and complex attack operations that is still in development, will be armed with the new R-37M, an upgraded version of an older long-range air-to-air missile, Russia Today reported Thursday, citing defense officials. The Russian Ministry of Defense is reportedly close to completing testing for this weapon, the development of which began after the turn of the century. With a reported operational range of 186 to 248 miles and a top speed of Mach 6 (4,500 mph), the R-37M is designed to eliminate rear support aircraft, critical force multipliers such as early warning and aerial refueling aircraft. Russia asserts that the missile possesses an active-seeker homing system that allows it to target fighter jets during the terminal phase of flight. While Russia initially intended to see the weapon carried by the MiG-31 interceptors, these missiles are now expected to become the primary weapons of the fourth-generation Su-30s and Su-35s, as well as the next-generation Su-57s. The weapon's specifications were modified to meet these demands. The Russians are also apparently developing another very long-range air-to-air missile — the KS-172, a two-stage missile with a range said to be in excess of the R-37M's capabilities, although the latter is reportedly much closer to deployment. China, another US competitor, is also reportedly developing advanced long-range air-to-air missiles that could be carried by the reportedly fifth-generation J-20 stealth fighter. The China Dailyreported in January 2017 that photos of a J-11B from the Red Sword 2016 combat drills appeared to show a new beyond-visual-range air-to-air missile. "China has developed a new missile that can hit high-value targets such as early-warning planes and aerial refueling aircraft, which stay far from conflict zones," the state-run media outlet reported, citing Fu Qianshao, an equipment researcher with the People's Liberation Army Air Force. Slow, vulnerable rear-support aircraft improve the overall effectiveness of key front-line fighter units, such as America's F-35 Lightning II Joint Strike Fighter, which just conducted its first combat mission. The best strategy to deal with this kind of advanced system is to "send a super-maneuverable fighter jet with very-long-range missiles to destroy those high-value targets, which are 'eyes' of enemy jets," Fu told the China Daily, calling the suspected development of this type of weapon a "major breakthrough." The missiles being developed by US rivals reportedly have a greater range than the American AIM-120 Advanced Medium-Range Air-to-Air Missile (AMRAAM), giving them a potential edge over US military aircraft. The Russian Su-57 is expected to enter service in 2019, although the Russian military is currently investing more heavily in fourth-generation fighters like the MiG-29SMT Fulcrum and Su-35S Flanker E, which meet the country's air combat needs for the time being. Russia canceled plans for the mass production of the Su-57 in July after a string of development problems. There is some evidence the aircraft may have been active in Syria earlier this year, but the plane remains unready for combat at this time. Military analyst Michael Kofman previously told Business Insider that the Su-57 is "a poor man's stealth aircraft," adding that it doesn't quite stack up to the F-35 or F-22. https://www.businessinsider.com/russia-plans-to-arm-su-57-jets-with-new-hypersonic-air-to-air-missiles-2018-9