19 juillet 2019 | International, Aérospatial

Esper: F-35 Won’t Hit 80% Readiness, Cites Stealth Parts

WASHINGTON: Presumptive Defense Secretary Mark Esper says flatly the F-35 “is not expected” to meet the 80 percent readiness goal set for it this year because of problems with a cockpit part that improves stealth performance.

“Transparency (canopy) supply shortages continue to be the main obstacle to achieving this. We are seeking additional sources to fix unserviceable canopies,” Esper said in response to written questions from the Senate Armed Services Committe (SASC).

The Government Accountability Office (GAO) mentioned the canopy issue in a recent report, calling it a “special coating on the F-35 canopy that enables the aircraft to maintain its stealth.” That, the congressional watchdog said. “failed more frequently than expected” so F-35 prime contractor Lockheed Martin went looking for more manufactures to produce enough canopies to meet demands. GAO also said the F-35 program was considering a new design.

This is all apiece with the general problem the F-35 program has had with obtaining new and spare parts.

“A key contributor to spare parts shortages is the F-35 program's limited capacity to repair broken parts,” the GAO says in its April report. “The average time to repair an F-35 part was more than 6 months, or about 188 days for repairs completed between September and November 2018—more than twice that of the program's objective of 60-90 days.”

Lockheed late last night sent comments on the transparency and its general efforts to improve F-35 readiness.

UPDATE BEGINS “We are working closely with our F-35 transparency provider to build production and repair capacity and we are standing up a second source of supply. As these actions deliver results, we expect to improve supply availability and overall fleet readiness,” F-35 program spokesman Mike Friedman said,

“We continue to see improvements in F-35 readiness rates and are receiving positive feedback from our customers, most recently from the Air Force who have several squadrons simultaneously deployed in the Middle East and across Europe for joint exercises and operations,” Friedman added. “Newer F-35 aircraft are averaging greater than 60 percent mission capable rates, with some operational squadrons consistently at or above 70 percent. We're taking aggressive action across the full F-35 enterprise to achieve the 80 percent mission capable rate target as soon as possible.”UPDATE ENDS

As the SASC noted, former Defense Secretary Jim Mattis ordered the Air Force and Navy to increase mission capable rates for the F-35, F-22, F-16, and F-18 inventories to above 80 percent by the end of September 2019. “What progress,” the committee asked in the written questions, “has the Department made in increasing mission capable rates and decreasing costs for all four platforms?”

The good news for the Air Force is that F-16 rates are better because the service has been able to increase parts supplies and add maintenance shifts. The F-16 fleet is expected to meet the 80 percent goal this year, Esper wrote.

Not so, the F-22. It too faces stealth maintenance issue, made worse, Esper noted, “by the extreme damage at Tyndall Air Force Base from the effects of Hurricane Michael.” The F-22 fleet rates are improving but it probably won't make 80 percent this year. Oh, and Congress: “Improving mission capable rates for both fleets required additional funding investment for this fiscal year.”

The Navy's fleet of F-18 is on track to meet the goal by September 2019. The Navy created a Maintenance Operations Center (MOC) to coordinate maintenance activities and optimize resources and reformed its depot and front-line maintenance process, thus improving regular inspections. Among a host of other changes, the Navy implemented supply chain reform that made it easier to track data across multiple sources.

In the meantime, to address the gap in part repair capabilities at the military depots, the prime contractor Boeing has begun incentivizing manufacturers to increase their capacity to repair spare parts by establishing performance-based repair agreements. As of October 2018, according to program documentation, Boeing had established seven such agreements, with six more planned by May 2019.

I contacted Lockheed and the F-35 Joint Program Office for comment and will add it when it arrives.

https://breakingdefense.com/2019/07/esper-f-35-wont-hit-80-readiness-cites-stealth-parts/

Sur le même sujet

5 août 2019 | International, Naval

U.S. Navy Commissions Littoral Combat Ship 15 (Billings)
KEY WEST, Fla., Aug. 3, 2019 /PRNewswire/ -- The U.S. Navy commissioned USS Billings (LCS 15) – the nation's eighth Freedom-variant Littoral Combat Ship (LCS) – in Key West, Florida. This milestone places the ship, built by the Lockheed Martin (NYSE: LMT) -led team into active service. "Billings was designed to operate and adapt to a rapidly changing environment," said Joe DePietro, vice president of Small Combatants and Ship Systems at Lockheed Martin. "She is equipped and ready for today's threats and easily modifiable to meet the threats we may not even be aware of yet. Our team is confident Billings will be what the Navy needs when the fleet needs it." Unique among combat ships, LCS is designed to complete close-to-shore missions and is a growing and relevant part of the Navy's fleet. It is fast — capable of speeds in excess of 40 knots. It is automated — with the most efficient staffing of any combat ship. It is lethal — standard equipped with Rolling Airframe Missiles (RAM) and a Mark 110 gun, capable of firing 220 rounds per minute. It is flexible — with 40 percent of the hull easily reconfigurable, integrating capabilities like the Longbow Hellfire Missiles, 30mm guns, and manned and unmanned vehicles targeted to meet today's and tomorrow's missions. "Having now commanded two freedom class LCS variants, I would like to report that these ships are truly impressive and will fit well in the niche they have been designed for," said LCS 15's Commanding Officer, Commander Nathan Rowan. "They are fast, maneuverable, and their weapon systems are some of the most accurate I've witnessed on any platform of which I've previously served." There are seven ships in various stages of production and test at Fincantieri Marinette Marine in Wisconsin, where the Freedom-variant LCS is built. The next Freedom-variant in the class is LCS 17, the future USS Indianapolis, which was delivered in late July. "On behalf of the proud 2,000 men and women who transform flat steel into a fast, agile surface combatant," said Jan Allman, CEO of Fincantieri Marinette Marine, "we are honored to support the U.S. Navy, and we congratulate the outstanding crew of the USS Billings." Multimedia assets are available here: Social media video: https://vimeo.com/351803068 B-roll: https://vimeo.com/351805414 Photos: https://www.flickr.com/photos/143371902@N04/albums/72157710070352016 For more information, visit www.lockheedmartin.com/lcs. https://news.lockheedmartin.com/2019-08-03-U-S-Navy-Commissions-Littoral-Combat-Ship-15-Billings
13 mai 2022 | International, Aérospatial

Podcast: The Future Of Air Assault
The war in Ukraine is revealing the vulnerability of attack helicopters to man-portable air-defense systems. Defense analyst Sash Tusa joins Aviation Week editors to discuss options that the U.S. Army will consider at its EDGE 22 exercise, how manufacturers could protect future rotorcraft and whether those ideas make sense.
19 août 2020 | International, C4ISR

US Army-funded research project makes inroads on scaling quantum processors
Andrew Eversden Correction: An earlier version of this story misspelled the name of Sara Gamble, a program manager in quantum information science at the Army Research Office. WASHINGTON — A research project funded by the U.S. Army has developed a new approach to manufacturing quantum computer chips, representing a significant step forward toward making quantum processors at the scale needed to deliver rapid processing capabilities to the battlefield. The new approach could impact how the service builds quantum networks and distributed sensing capabilities. Quantum processors use a qubit to store information. The researchers were looking to increase the amount of qubits placed onto a photonic chip. Prior to the experiment, researchers were only able to get two or three qubits into one photonic chip, said Sara Gamble, a program manager in quantum information science at the Army Research Office, an element of the Army Research Laboratory at Combat Capabilities Development Command. “Currently we can exert control and successfully manipulate handfuls of qubits, like very countable numbers of them. But when it comes to the millions or billions of qubits that we need for applications of actual interest, how to get to those millions or billions of qubits is a major research challenge,” Gamble said in an interview with C4ISRNET. In this study, researchers succeeded in integrating 128 qubits onto a photonic chip by making small quantum “chiplets” and placing them onto a larger circuit. The chiplets were able to carry quantum information through artificial atoms created by scientists by exploiting defects in diamonds. The increase to 128 is a large jump, but well short of the thousands, millions or billions of qubits needed to successfully complete the applications the service sees as useful in the future. For example, qubits could be used for distributed sensing through networks of quantum systems on the battlefield to allow for greater situational awareness, though Gamble noted that quantum information science research is still in the early stage. “We know that a lot of these qubit types are also excellent sensors. So for things like electric and magnetic fields, these quantum sensors can sense those fields ... with a higher sensitivity than you can get out of classical sensor,” Gamble said. “And then if you network those quantum sensor systems together, that increase you can get in your signal goes up even more. “So we need those isolated qubit sensors. But then we also need a way for those qubit sensors to talk to each other over a quantum network.” Being able to process data at quantum speeds would benefit the military as it seeks to make decisions based on large sets of data coming in from the battlefield in near-real time, and as it moves toward multidomain operations. “It's a fundamentally different way to gather, process and share information,” Gamble said. The research was completed by scientists at the Massachusetts Institute of Technology and Sandia National Laboratories. The new technology still needs to undergo tests to ensure the qubits in the chip can be controlled in a way that would help the Army. Gamble said the research team is also considering how to automate parts of the production process. “Thinking about how we can automate these processes to make them even more repeatable is going to be exciting,” Gamble said, “and something that's going to be necessary if you really want to do this for, you know, millions to billions of qubits instead of 128.” https://www.c4isrnet.com/battlefield-tech/it-networks/2020/08/17/us-army-funded-research-project-makes-inroads-on-scaling-quantum-processors/

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