20 mai 2020 | International, Aérospatial

USAF Opens Bidding Phase Of B-52 Re-Engine Competition

Steve Trimble May 20, 2020

The U.S. Air Force has kicked off a three-way competition to re-engine the entire 76-aircraft B-52 fleet from 2021 to 2035.

The request for proposals (RFP) released on May 19 invites bids from GE Aviation, Pratt & Whitney and Rolls-Royce to supply 608 engines to replace each of the eight, 60-year-old, 16,000 lb.-thrust P&W TF33 turbofans on the heavy bomber.

GE can choose between the CF34 or Passport engine or offer both. P&W has proposed the PW800. Rolls-Royce will offer a military version of the BR.725.

The Air Force RFP lays out a two-step selection process. In step one, companies must submit “virtual” prototypes of their engine, meaning a digital design with integrated models for manufacturing, performance and sustainment.

Step 2 calls for the traditional engine source selection process, which will be informed by the data from the virtual prototypes and an integration risk analysis completed in the first step.

The Air Force has said the TF33 engines that now power the B-52 cannot be sustained practically beyond 2030. The Cold War jet, meanwhile, is expected to continue operating beyond 2050, outliving the B-2 and B-1B fleets scheduled for retirement in the 2030s.

Armed with a new class of hypersonic and long-range missiles, including the nuclear Long-Range Stand-Off Weapon, the B-52 will perform the standoff mission, while the B-21 penetrates into contested airspace.

https://aviationweek.com/defense-space/aircraft-propulsion/usaf-opens-bidding-phase-b-52-re-engine-competition

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  • Greece and Israel deal spotlight leasing model for military UAVs

    11 mai 2020 | International, Aérospatial

    Greece and Israel deal spotlight leasing model for military UAVs

    By: Seth J. Frantzman JERUSALEM — Greece's Hellenic Ministry of National Defense will lease unmanned aerial vehicles from Israel, in a deal that offers up an alternative to pricey acquisitions amid budgetary constraints. The Heron long endurance drones, manufactured by IAI, will be used for border defense under a leasing model that IAI said may grow more appealing with the new pandemic dynamics that countries face. Executive vice president and general manager of AIA's Military Aircraft Group, Moshe Levy, praised the new deal with Greece as "yet another example of the successful leasing model promoted by IAI in many parts of the world.” Greece will have an option to purchase the Herons after the lease term ends in three years. The Heron is one of the most popular of IAI UAVs, which have collectively seen 1.8 million operation flight hours with over fifty partners worldwide, the company says. IAI could not comment on the overall value of the lease agreement. The twin-boom Heron comes in several models, including the smaller tactical Heron unveiled in 2019, and the longer endurance Heron MK II unveiled this year. With development roots in the early 1990s, the larger Heron UAVs have been active with the Israeli Air Force since the early 2000s and been used by countries such as Turkey, India, Australia, Singapore, Azerbaijan and Germany. Greece and Israel have become closer partners in defense and maritime relations over the last decade. The Heron lease for Greece will include a unique maritime configuration with sensors and communications designed to monitor the extensive water borders of Greece. Levy says that Israel sees this maritime security model as an important market. The coronavirus pandemic has made countries increasingly aware of the need to control borders, Levy said, creating newfound demand for large surveillance UAVs like Heron. The flexibility of lease agreements with operations outsourced allows customers to get the data they need to secure borders, but without the overhead of ownership or the large logistical footprint. Levy points to previous lease agreements, such as a $600 deal in 2018 with Airbus and Germany to lease Heron TPs. Those leased Herons saw more than 30,000 hours of flight time in Afghanistan. “We supply the birds [UAVs] and the maintenance and another company takes the bird and puts it in the air," Levy said. “The customer just does the mission and get the data.” Lease agreements were signed with Australia and Canada over the last decade as well. “We assume after coronavirus, budgets will shrink and people will look for different solutions and things that are simpler, and less costly, so the lease option can meet the needs,” Levy said, particularly for states that want only a few large UAVs, without the overhead of operations and training. Israel was the world's largest exporter of drones through 2013, bringing in more than $4.6 billion in sales between 2006 and 2012 and selling UAVs to more than two dozen countries. However, China has rapidly increased its military drone sales to become one of the largest exporters last year. At the same time, UAV sales are increasingly a smaller percent of Israel's overall defense exports, illustrating a changing market. “We have to adapt and manage our portfolio. We are offering a wide variety of platforms,” says Levy. The new Heron MK II, with a wingspan of 16 meters, weighs 1,300 kg and can reach an altitude of 35,000 feet for up to 45 hours. It has a new more powerful Rotax 915 iS engine, says Levy, who pointed to increased demnd for versatile vertical-takeoff and landing (VTOL) options or UAVs that require only a short runway. https://www.defensenews.com/global/europe/2020/05/08/greece-and-israel-deal-spotlight-leasing-model-for-military-uavs/

  • Japan commits to local F-35 production

    31 juillet 2020 | International, Aérospatial

    Japan commits to local F-35 production

    by Jon Grevatt The Japanese Ministry of Defense (MoD) has confirmed plans to continue the local production of Lockheed Martin F-35 Lightning II Joint Strike Fighter aircraft. The move reverses a decision in late 2018 to cease local production at Japan's final assembly and checkout (FACO) facility in Nagoya and instead focus on the localised maintenance, repair, overhaul and upgrade (MRO&U) of F-35s. That move was previously prompted by the high cost of building the F-35s at the facility. However, a spokesperson from the MoD told Janes that the new decision to continue building the aircraft at the Japanese FACO facility was influenced by the declining costs of producing the F-35 locally. Producing the aircraft locally, said the spokesperson, is now cheaper than importing the F-35 from the United States. The spokesperson was speaking to Janes nearly three weeks after the United States government approved a potential USD23 billion deal to sell Japan an additional 105 F-35s. This Foreign Military Sale means Japan will operate a total of 147 F-35s, becoming the second-largest operator of the aircraft in the world. These aircraft will comprise 105 conventional take-off and landing (CTOL) F-35A aircraft and 42 units of the short take-off and vertical landing (STOVL) F-35B. The spokesperson said, “For the acquisition of F-35As in fiscal years (FY) 2019 and 2020... the Japanese MoD has decided to use domestic manufacturing at the FACO... It is confirmed that the unit cost of aircraft produced at the domestic FACO [facility] is less, compared to the unit cost of imported aircraft.” https://www.janes.com/defence-news/news-detail/japan-commits-to-local-f-35-production

  • Raytheon Unveils Platoon-Sized Infantry Combat Simulator

    4 décembre 2019 | International, Terrestre

    Raytheon Unveils Platoon-Sized Infantry Combat Simulator

    By Matthew Cox Defense contractor Raytheon has just unveiled a new virtual training simulator designed to immerse full platoons of soldiers at a time into realistic battlefield settings, where they can shoot enemy targets with individual weapons and even call in close-air support. Raytheon began showing off its new Synthetic Training Environment Soldier Virtual Trainer at the Interservice/ Industry Training, Simulation and Education Conference (I/ITSEC) in Orlando, Florida this week. The prototype system is Raytheon's attempt to satisfy the U.S. Army's need to create a synthetic training environment that dramatically increases the level of realism in training. "They need a way to get soldiers into the same virtual environments that they have had for tanks and helicopters for decades," Harry Buhl, lead investigator for synthetic training at Raytheon, told Military.com. "When you do that in an immersive, synthetic environment, you can go beyond the [live-fire] range -- you can put people soldiers into urban scenarios or into combat-type scenarios ... so you can stress them at a higher level and gain higher levels of proficiency." The Army recently told industry officials that it will begin seeking prototype solutions early next year designed to develop similar types of simulator training technologies. "We intend to compete for that opportunity," Buhl said. Currently, Raytheon is demonstrating its new soldier virtual trainer to simulate an observation post for two soldiers. But it can be configured for much larger units, Buhl said. "We can support up to a platoon ... that is something that the Army hasn't asked for. But the technology path that we have chosen allows us to actually do this for a platoon-sized unit over a large area. So we have the capability to do squad training or situational training exercises which we believe will be the next step as the Army goes down this path," Buhl said. The new trainer uses very high-quality graphics, similar to high-end games and relies on virtual-reality headsets and instrumented weapons, he said. "You can pick up a weapon, and the weapon is in that virtual environment," Buhl said. "When you put your cheek to the stock of that weapon, you have that same sight [picture] as you would in real life, but you are in a virtual environment." The trainer relies on commercially available tracking sensors, roughly two-inch cubes, that are spread out across any area, Buhl said. "The software package that we put behind them will link them together and make them smart enough to understand where you are in the environment so that you can be realistically replicated in the synthetic environment," Buhl said. "As you ... take a knee, go to the prone, you are doing the same things in that synthetic environment. "If you were training on a basketball court, you could put these things up in the rafters of the basketball court and just leave them there." Eventually, the sensor technology will be built into the headsets, so there will be no need for tracking sensors, Buhl added. One of the features the Army is looking for is the ability for soldiers to train for calling in artillery or close-air support, Buhl said, describing how Raytheon's simulator shows realistic training distances. "You are ... on a hilltop looking down the valley, you've got some threat vehicles few miles away," he said. "You have [Air Force] A-10s circling overhead; they come down and you control them and call in their attack, so that you can apply close-air support directly on those targets." The simulator also allows soldiers to engage enemy targets with individual weapons at realistic ranges, another feature on the Army's wish list, Buhl said. If soldiers are using a rifle with an effective range out to 500 meters "you can engage targets out to 500 meters," he said. The trainer will also allow units to train for scenarios involving checkpoints that could call for the need to escalate from using non-lethal devices to lethal force, Buhl said. The Army is now developing the Integrated Visual Augmentation System (IVAS), a Microsoft-based headset that uses augmented reality to equip soldiers with a heads-up display allowing them to sight their weapon and view key tactical data. Scheduled to be ready for fielding in fiscal 2021, IVAS will also allow soldiers to train in synthetic training scenarios such as mission rehearsals before going on a live operation. Buhl said Raytheon used virtual-reality headsets because it "provides an immediate capability" the Army could take advantage of, but the system will be adaptable to work with augmented-reality headsets used with IVAS. "All of this is ... able to be packed up in a Pelican case and taken anywhere in the world," Buhl said. "It's also cloud-enabled, so if you did want to link into a networked training exercise with soldiers in another location, with tanks or helicopters that are in synthetic simulators, you could do all of that." https://www.military.com/daily-news/2019/12/03/raytheon-unveils-platoon-sized-infantry-combat-simulator.html

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