7 décembre 2018 | International, Aérospatial

Japanese acquisition officials reveal next steps in search for advanced fighter jet

By:

TOKYO — Japan is pushing ahead with research and development into advanced fighter jet technology, despite uncertainty over its acquisition strategy for a next-generation fighter and questions about the degree to which Japanese industry will be involved in the program.

These technologies include a new fighter engine, thrust vectoring control, stealth shaping for low observability as well as the weapons carriage and release mechanism for internal weapons bays, according to representatives from Japan's Acquisition, Technical and Logistics Agency, or ATLA, who spoke at the Japan International Aerospace Exhibition in Tokyo, which ended Nov. 30.

Several of these technologies were fitted on the Mitsubishi X-2, a technology demonstrator built by the Japanese and used to test and validate several of these features.

Since then Japan has continued development work on the 15-ton thrust XF-9 afterburning turbofan. That turbofan displayed an improvement up to 70 percent during the time it took to spool up to full thrust from idle, when compared to the earlier XF-5 used by the X-2, said Lt. Gen. Hiroaki Uchimura, director general of aerial systems at ATLA.

Japan is also working on an advanced active electronically scanned array radar, as well as manufacturing techniques to reduce or eliminate the need for fasteners in aircraft structures. Neither feature found its way to the X-2, but work continues on both fronts, with the radar having been tested in the laboratory and slated for flight tests onboard a Mitsubishi F-2 fighter jet test bed.

The continuing R&D effort is reflected in the budget requests the Ministry of Defense made for next fiscal year, which begins in April 2019. This includes $194.6 million for research into fighter “mission system integration studies and manned-unmanned aircraft teaming technology,” and is on top of the $1.7 billion Japan has invested in fighter research since 2009. That first figure is also more than 10 times the amount spent on R&D for Japan's Mitsubishi F-2 fighter, according to Uchimura.

Japan's next-generation fighter will replace the F-2 around the mid-2030s, and both Uchimura and ATLA Commissioner Nobuaki Miyama, who spoke at different conference sessions at the aerospace exhibition, touched on five critical attributes for Japan's next fighter program.

These include its ability to secure air superiority over potential adversaries; the ease of upgrading as new technologies emerge; the latitude to domestically perform upgrades and sustainment without requiring overseas approval; the level of involvement of local industries in performing those upgrades and sustainment; and the need for the fighter and program as a whole to have a “realistic and feasible” cost.

Japan is currently studying several different procurement strategies for its next-generation fighter, including a wholly domestically developed and manufactured design, an international collaboration, or what it calls a “spinoff” development of an existing design.

Japan and the United Kingdom have agreed to exchange information with each other for their respective fighter programs. Reuters previously reported that both Lockheed Martin and Northrop Grumman responded to Japan's request for information on potential fighter offerings, with the former said to have an “F-22/F-35 hybrid” in mind.

https://www.defensenews.com/digital-show-dailies/japan-aerospace/2018/11/30/japanese-acquisition-officials-reveal-next-steps-in-search-for-advanced-fighter-jet

Sur le même sujet

  • US military aims for $1 billion missile defense radar in Hawaii

    27 juin 2018 | International, C4ISR

    US military aims for $1 billion missile defense radar in Hawaii

    By: Audrey McAvoy, The Associated Press HONOLULU — The U.S. military wants to install missile defense radar in Hawaii to identify any ballistic missiles that are fired from North Korea or elsewhere, officials said Tuesday. The $1 billion system would spot warheads on missiles headed for Hawaii and other U.S. states, and provide that information to ground-based interceptors in Alaska designed to shoot them down. It would be able to distinguish warheads from decoys that are designed to trick missile defense systems. The radar would help give the Alaska missiles “better eyes,” said Sen. Brian Schatz, a Democrat from Hawaii and a supporter of the project. So far, lawmakers have appropriated $61 million for planning but not funds for construction. Schatz, who serves on the defense subcommittee of the Senate Appropriations Committee, said he doesn't have much doubt about the likelihood of follow-on funding. The radar would be about 30 to 50 feet wide and 60 feet to 80 feet high, according to the Missile Defense Agency. It will likely to have a flat-face surface like one in Shemya, Alaska, instead of a ball-like appearance of other military radar. Experts say the larger the face, the more precisely it will be able to distinguish between warheads and decoys. The agency is studying two possible locations for the radar, both of which are on Oahu's North Shore. It's collecting public comment through July 16. Schatz said lawmakers discussed the radar with the previous commander of U.S. forces in the Pacific, Adm. Harry Harris, who recently retired and has been nominated to be the U.S. ambassador to South Korea. “We already have robust capabilities, but working with Admiral Harris, we wanted to double down and make sure we have the most powerful combination of missile interceptors and radar systems anywhere,” Schatz said in a phone interview. The radar would help identify long-range ballistic missile threats mid-way through flight. David Santoro, a director and senior fellow for nuclear policy at the Pacific Forum think tank in Honolulu, said threats from North Korea were increasing as Pyongyang developed more sophisticated missiles and nuclear weapons. “Over the past few weeks, we have seen a so-called peace initiative developing, but the reality is the threat is still there. It's not going away,” Santoro said. The U.S. would be expected to build a radar system to counter the threats, he said. U.S. concerns about the threat from North Korean missiles spiked last year as North Korea test-fired long-range missile over Japan and threatened to launch ballistic missiles toward the Guam, a major U.S. military hub in the Pacific. President Donald Trump warned the U.S. military was “locked and loaded, should North Korea act unwisely” and that the U.S. would unleash “fire and fury” on the North if it continued to threaten America. But then Trump and North Korea's leader, Kim Jong Un, met in Singapore earlier this month and issued a declaration agreeing to “work toward complete denuclearization of the Korean Peninsula.” The statement did not define a process, say when it would begin or say how long it might take. https://www.militarytimes.com/news/your-military/2018/06/27/us-military-aims-for-1-billion-missile-defense-radar-in-hawaii/

  • How new network tools can help find paratroopers faster and improve situational awareness

    1 octobre 2020 | International, Terrestre, C4ISR

    How new network tools can help find paratroopers faster and improve situational awareness

    Andrew Eversden FORT BRAGG, N.C. — When paratroopers with the 82nd Airborne Division's First Brigade Combat Team landed in the drop zone during a night jump last week, it took leaders 45 minutes after hitting the ground to locate about 90 percent of their formation. For contrast, at an exercise early last year, the commander of that brigade didn't achieve 75 percent accountability of formation until the second day of the exercise. That's one of the major improvements that's coming to three more Army brigades as part of Capability Set '21, a new set of network tools that will be fully fielded to the First Brigade Combat Team of the 82nd in December. The exercise at Ft. Bragg provided a soldier touch point opportunity for the Army's integrated tactical network (ITN) team, made up of Program Executive Office Command, Control, Communications-Tactical and the Network Cross-Functional Team, to hear what soldiers thought about Capability Set '21. And leaders from the Army's tactical network modernization team received some important feedback: the technology works, but the training needs improvement. “It does what we thought it would do, which is increase situational awareness up and down,” Col. Andrew Saslav, commander of the 82nd Airborne's First Brigade Combat Team, said in an interview with C4ISRNET. “That's the critical thing ... we don't know where people are on the battlefield unless we can talk with them. Now, I can see them and that just speeds up processing.” That's good news for the Army as it's set to deploy Capability Set '21 to three more infantry brigades in fiscal 2021. The exercise, originally scheduled for January, was delayed after the deployment of the brigade to Kuwait in January and the COVID-19 pandemic. The Army's tactical network modernization effort is working to provide a resilient tactical network to enable faster communications and data transfer to enable multi-domain operations (MDO) or Joint All-Domain Command and Control. “Our obligation is very simple: we have to make this work,” said Maj. Gen. Chris Donahue, commander of the 82nd Airborne Division, said at a meeting Sept. 24. “And if it doesn't, MDO, all-domain and everything else, is a pipe dream.” Lessons learned While a high-profile Army experiment in the Yuma, Ariz. desert tested various future networking capabilities, this lesser known event in North Carolina found that the network tools fielded to brigades significantly improve communications, but that soldiers need improved training with the batteries and additional cables. A major difference maker is Capability Set '21′s End User Device, a Samsung Galaxy smartphone that works in tandem with the soldier's radio to broadcast their location to all other users across the formation, as well as provides mapping capabilities. On average, the new “revolutionary” capability allows Saslav to see his formation 45 minutes to two hours, he said, a far cry from last year and a “game changer” when it comes to fighting battles. “My job is to resource those companies, troops and batteries in the fight and I do that mainly through fires, whether that's Army indirect fires, or its joint aircraft. If I can't see them, if I don't have a real-time data on where they are, then I can't support them. And so now I can support them faster more quickly, I can bring everything in closer to get that into the fight,” Saslav told C4ISRNET. The devices also allow soldiers to mark enemy positions and broadcast that information back through the rest of the formation. Shared understanding and increased situational awareness across the formation will save lives, and the EUDs increase both by an “untold variable,” Saslav said, because the capability eliminates the game of “telephone” played between the brigade commander and soldiers spread throughout the field. Another Capability Set '21 technology, known as the Variable Height Antenna, a tethered drone flying a TSM radio, successfully extended communications by several kilometers further than a standard, ground-based antenna would reach, the exercise found. These capabilities are a critical component of the Army's work evolving its network into a mesh network that gets away from line-of-sight communications and uses individual radios as nodes that extend the range of the network to allow soldiers to talk to each other beyond line-of-sight, across the battlespace. “I can always talk to the lowest radio to the highest radio because we have this mesh network and in ITN terms, that's game changing for us,” Saslav said. “It is moving us beyond line of sight, so for the first time, and that beyond line of sight is movable and fixable.” While the devices provide greater situational awareness, Saslav said during the exercise the location data wasn't coming in with specific identifiers for what dots representing locations meant. But, in a way that highlighted the DevOps approach that the Army is taking to the modernization of its tactical network, the software was updated during the exercise because the vendor was in the field, Saslav said. In addition, the Army discovered some linkage challenges between the radio and device, finding that the radio and device would lose the link between them if they were switched off. Leaders in the field want the devices to connect automatically so soldiers don't have to connect them together themselves. A new approach to training But one major challenge Army tactical network officials learned from talking to soldiers using the equipment on the ground was that the training process for teaching soldiers how to use the equipment needed to improve. The radio and EUD are connected together to broadcast location information, but soldiers were trained to use the devices separately. But since the devices need to be used as a system, leaders learned that the soldiers needed to be trained on how the system works. “What needs to happen is soldiers need to be trained with the equipment as they are worn and functions as an overall network because everything affects everything else,” said Capt. Brian Delgado, S6 of the 82nd Airborne Division's first Brigade Combat Team. And that network can be affected differently depending on the terrain. So while classroom training on the devices is important for the soldiers to learn the technology, they also need to learn how to use the technology in the field and how the terrain can affect it. Capt. Matthew Kane, S6 of the first brigade's 3rd Squadron, 73rd Cavalry Regiment, told C4ISRNET that his big takeaway was adjustments to training. “It needs to be as hands on as possible,” Kane said. “You need to get in the terrain and actually test the radio. The classroom won't cut it just because it's no longer programming the radio and walking away.” These new capabilities also mean soldiers must carry more batteries and more cables with them. Col. Garth Winterle, project manager for tactical radios at PEO C3T, said that the team identified a couple issues with battery life, one that requires training soldiers different configurations to optimize battery life. The other battery life problem was addressed through a firmware update by the vendor. Several Army personnel in the field also noted that soldiers needed to be taught best practices for cable management. Soldiers “weren't experts on how it's powered or how to manage cables and that's not a fault of the paratroopers,” Delgado said. “That's a fault with the way that we were addressing training.” As the Army perfects Capability Set '21 and moves forward with Capability Set '23, its next iteration of network tools, it will continue to rely on the feedback of soldiers to ensure that technology works, while being simple and intuitive enough for the user. “The beauty of it is that feedback we're going to get because [which] soldier right now has a really good idea that's going to make this better? And that's the feedback we're really looking for,” said Col. Rob Ryan, deputy director of the Network-CFT. https://www.c4isrnet.com/battlefield-tech/it-networks/2020/09/29/how-new-network-tools-can-help-find-paratroopers-faster-and-improve-situational-awareness/

  • Northrop Grumman Earnings Up In Second Quarter - Air Force Magazine

    30 juillet 2021 | International, Aérospatial

    Northrop Grumman Earnings Up In Second Quarter - Air Force Magazine

    Strong performance in space systems helped Northrop Grumman achieve higher earnings than a year ago, company officers reported July 29.

Toutes les nouvelles