21 avril 2021 | International, Naval, C4ISR

Telephonics Corporation Awarded Support Contract for U.S. Navy’s MH-60R/S Helicopter Programs from Lockheed Martin RMS

The initial contract has a five-year base, running through 2025, and a two-year option with a contract value of $162M with current funded backlog of $84M.

https://www.epicos.com/article/692607/telephonics-corporation-awarded-support-contract-us-navys-mh-60rs-helicopter-programs

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  • Multimillion-euro order from Hungary

    2 octobre 2019 | International, Terrestre

    Multimillion-euro order from Hungary

    September 30, 2019 - Rheinmetall to manufacture main armament and hulls for PzH 2000 self-propelled howitzer and Leopard 2 main battle tank. Rheinmetall is taking on an important role in the modernization of the Hungarian Army. The Düsseldorf-based Group is producing the main armament and fire control technology for forty-four Leopard 2 main battle tanks as well as the main armament, fire control technology and chassis for twenty-four PzH 2000 self-propelled howitzers. The package also encompasses thirteen HX and TGS logistic trucks. The contract, worth around €300 million, was recently signed. Delivery begins in 2021 and will be completed in 2025. Rheinmetall has partnered with Krauss-Maffei Wegmann (KMW) to carry out the project. In December 2018 KMW won an order from the Hungarian armed forces for forty-four new Leopard 2A7+ tanks and 24 new PzH 2000 self-propelled howitzers. This will make Hungary the 19th Leopard 2 user nation and the eighth nation to opt for the PzH2000. As well as having design authority, Rheinmetall is the original equipment manufacturer (OEM) of the 120mm smoothbore technology used in all versions of the Leopard 2 tank. The same is true of the 155mm L52 main gun of the PzH 2000 self-propelled howitzer. Tried and tested around the globe, the Group’s 120mm smoothbore gun and ammunition have been continuously perfected right from the start. The higher-pressure 120mm L55A1 gun earmarked for the Leopard 2A7+ was successfully qualified at the end of 2017, and already supplied and installed for two Leopard 2 user nations in mid 2018. Moreover, the L55A1 tank gun is capable of firing the programmable DM11 multipurpose round. In addition, Rheinmetall possesses comprehensive expertise in the field of tracked armoured vehicles, including as an OEM. The Group developed the chassis of the PzH self-propelled howitzer. https://www.rheinmetall-defence.com/en/rheinmetall_defence/public_relations/news/latest_news/index_21504.php

  • European Hypersonic Cruise Passenger Study Set For New Tests

    2 août 2019 | International, Aérospatial

    European Hypersonic Cruise Passenger Study Set For New Tests

    By Guy Norris A team of European hypersonic researchers are preparing for wind tunnel tests of a Mach 8 concept that is designed to prove technologies for the development of future ultra-long-range, high-speed commercial vehicles and air-breathing space launch systems. Funded under Europe’s Horizon 2020 research and innovation program, Stratofly (Stratospheric Flying Opportunities for High-speed Propulsion Concepts) is targeted at fostering hypersonic capabilities for a 300-seat passenger vehicle cruising above 30 km (19 mi.) to TRL (technology readiness level) 6 by 2035. The project builds on the Lapcat waverider concept developed under earlier programs by the European Space Agency/European Space Research and Technology Center. Using the 310-ft.-long Lapcat II MR2.4 version as a reference vehicle, the 30-month Stratofly effort is focused on classic hypersonic technology challenges such as propulsion integration, hot structures and thermal management. In addition, with environmental concerns at the forefront in Europe, the project also includes sustainability considerations such as fuel-burn efficiency, noise and emissions reductions, as well as operational issues such as life-cycle costs, safety and certification. Coordinated by The Polytechnic University of Turin, Italy, the project team believes that sustainable hypersonic travel is feasible through the use of liquid hydrogen fuel and new trajectories that would enable flights from Europe to Australia in 3 hr. Specific targets include 75-100% CO2 reductions per passenger kilometer and 90% reductions in nitrous oxide (NOx) compared to current long-range transport aircraft. A version of the vehicle could also be adapted into the first stage of a two-stage-to-orbit space launch system, says the group. Other members of the 10-strong consortium include the von Karman Institute for Fluid Dynamics in Belgium, which is focused on propulsion and noise; the Netherlands Aerospace Center, NLR, which is also part of the noise study; and CIRA, the Italian aerospace research center, which is conducting high-speed flow analysis. Propulsion systems and climate impact input is provided by Germany’s DLR research organization, while ONERA, the French aerospace research center, is focused on emissions as well as plasma-assisted combustion in the vehicle’s combined-cycle propulsion system. Sweden’s FOI defense research agency is also part of the plasma combustion study. The French National Center for Scientific Research is also evaluating the vehicle’s potential climate impact, particularly in areas such as the effects of water droplets from the exhaust in the upper atmosphere. Studies of the overall business plan, human factors and hypersonic traffic management are being conducted by the Hamburg University of Technology, while the Spain-based Civil Engineering Foundation of Galicia is focused on structural analysis and optimization.   Like the original Lapcat design, the Stratofly MR3 waverider configuration is dominated by a large elliptical inlet and an integrated nozzle aft located between two canted tail fins. For takeoff and acceleration up to Mach 4.5, the vehicle is powered by six air turbo ramjets (ATR, also known as air turbo rockets) in two bays of three, each fed by secondary inlets in the primary intake. Above this speed, sliding ramps cover the ATR inlets as the vehicle accelerates and transitions to a dual-mode ramjet/scramjet (DMR) for the next phase of the flight. The DMR is housed in the dorsal section, nested between the ATR ramjets, and is designed to operate in ramjet mode to above Mach 5 and scramjet mode up to Mach 8. The scramjet will incorporate a plasma-assisted combustion system to maintain the stability of the flame front and prevent the potential for flameouts. Tests of the plasma system in a combustor will take place later this year at ONERA, where supersonic combustion testing also took place for Lapcat. The tests will be conducted in November-December at ONERA’s ATD5 facility and will focus on inlet conditions at Mach 3.7. Also planned for later this year is a test of the full vehicle in the high-enthalpy wind tunnel at DLR’s Gottingen research facility. Testing at DLR will run through September 2020 and is expected to target similar free-stream conditions as those tested on Lapcat II—around Mach 7.8. The work will assess aerothermodynamic characteristics and be used to validate the results of earlier computational fluid dynamics analysis of the MR3 design, which incorporates external and internal differences against the reference vehicle. “We elevated the canard [a retractable feature for lower-speed flight] and redesigned the vertical tails,” says Davide Ferretto, a research assistant on the Stratofly team from The Polytechnic University of Turin. “We also redesigned the leading-edge radius of the inlet for increased efficiency as it feeds both propulsion systems.” As part of the redesign, the enclosed passenger compartment, which was divided into two sections running along each side of the vehicle, has been combined into a single cabin in the lower lobe of the fuselage. https://aviationweek.com/propulsion/european-hypersonic-cruise-passenger-study-set-new-tests

  • Lockheed slated to miss F-35 delivery target in 2020 as supply chain struggles to keep up

    20 mai 2020 | International, Aérospatial

    Lockheed slated to miss F-35 delivery target in 2020 as supply chain struggles to keep up

    By: Valerie Insinna    20 hours ago WASHINGTON — Lockheed Martin will throttle back the pace of F-35 production on May 23, leaving it anywhere from 18 to 24 jets short of the 141 scheduled for delivery this year. The COVID-19 pandemic has made it more difficult for Lockheed’s supply chain to make components on time, and as a result the company is moving to an adjusted work schedule where production will slow over the next three months, said Greg Ulmer, Lockheed’s vice president for the F-35 program. Ultimately, Lockheed aims to accelerate production as soon as possible and hopes to decrease the number of aircraft that will delivered late. However, Ulmer said there are too many variables to say precisely how long buyers will be left waiting for their F-35s. “If I have the ability to speed up or recover sooner, then I will do so,” Ulmer said. “If there are other unknown COVID-19 impacts that I don’t know about that come on the horizon — I don’t know that either. ... As we go forward, probably late summer or early fall, we’ll have a pretty good sense of where we’re going to be.” Beginning on May 23, Lockheed will divide the approximately 2,500 employees who staff the F-35 production line in Fort Worth, Texas, into three groups, moving them to new schedule where each group works for two weeks and then has a week off. After one three-week rotation, the company will determine whether the system is successful and can either alter the schedule or continue until Sept. 4, it said in a statement. Rotating smaller groups of employees on the line allows Lockheed to move to a slower pace of operations while at the same time ensuring that workers retain their expertise and don’t need to be retrained when the production rate returns to normal, Ulmer said. “It really maximizes our ability to recover production on the backside and retain our workforce with no loss of learning.” Lockheed Martin executives first disclosed that F-35 deliveries could be delayed during an April 21 earnings call with investors. “There are local distancing requirements that are being more stringently applied across the globe. There is workforce disruption,” Kenneth Possenriede, the company’s chief financial officer, said at the time. “We’ve actually had some issues with shipping constraints.” Most of the supply chain pressure on the program stems from constraints on low-tier suppliers that produce components that feed into larger portions of the F-35. While the production line tries to do as much work on each section as possible, workers are having to slow down and wait for missing parts to arrive, Ulmer said. Lockheed has also had challenges getting connectors for the jet on time — another problem that makes it difficult for the company to merge F-35 sub-assemblies into a finished aircraft, Ulmer said. Once aircraft are completed and go through acceptance testing, the sequence of deliveries will remain the same, he said. The slowdown of the F-35’s production rate comes days after President Donald Trump voiced support for moving more of the jet’s production to the United States. Currently, international partners who helped fund development of the F-35 can compete for work on the jet, reducing the cost of the aircraft and giving foreign buyers an industrial incentive to support the program. “The problem is if we have a problem with a country, you can’t make the jet. We get parts from all over the place. It’s so crazy. We should make everything in the United States,” Trump said on Thursday. However, the industrial challenges currently faced by Lockheed do not appear to be caused by the international supply base. Ulmer said European suppliers, who were hardest hit before the United States, are now rebounding from the pandemic. “I really see Europe kind of [on the] leading edge of the recovery side of this,” he said. In particular, northern Italy struggled with high numbers of confirmed COVID-19 cases, leading Italian defense firm Leonardo, which runs an F-35 final assembly and check out plant in Cameri, to shut down operations over a two day period in March to clean the facility. With the number of new cases receding, Italy began reopening nonessential businesses this month. “Leonardo today is north of 90 percent manned, fully operating. They’re pretty much back to normal operations,” Ulmer said. The ongoing expulsion of Turkish suppliers from the F-35 program is also unlikely to be affected by the production slowdown at Fort Worth, as Lockheed has already identified companies to take over that work, he said. “With the vast majority of those, that alternate sourcing has been accomplished. I really don’t see this as an impact to that." Ramping production back up   Unless COVID-19 cases spike in the coming months, Lockheed believes it will be able to return workers to a normal production schedule in the late summer or early fall. What will vary is timing for when suppliers can return to their usual production rates, and whether those suppliers have the capacity to expedite the manufacturing of key parts, Ulmer said. Once the supply chain has fully recovered, it will take the Fort Wort line two to three months to resume full rate production. “There are 1,900 suppliers across the program” in the United States, Ulmer said. “So we take all that information in, we determine what rate they can deliver to, we determine if they have any kind of constraints we can help them deal with, and then we have to balance that into the production system to dial in the production rate we can execute.” “I am optimistic that the majority of industry is on the backside. I’m reluctant to say that because there could be a rebound,” Ulmer said, “but we’re at the very back end of the impact.” https://www.defensenews.com/breaking-news/2020/05/19/lockheed-to-slow-f-35-production-as-supply-chain-struggles-to-keep-up

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