28 juin 2023 | International, Naval
US Marine Corps begins developing smaller pre-positioning ship
Marines want a smaller alternative to the Large, Medium-speed Roll-on/Roll-off ships of today to better sustain distributed operations in the 2030s.
19 juillet 2019 | International, Aérospatial
By COLIN CLARK
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/
28 juin 2023 | International, Naval
Marines want a smaller alternative to the Large, Medium-speed Roll-on/Roll-off ships of today to better sustain distributed operations in the 2030s.
22 juillet 2020 | International, Terrestre
Andrew Eversden WASHINGTON — The U.S. Defense Department's advanced research arm issued a broad agency announcement July 15 for technology that would use algorithms to identify moving military ground vehicles. The Moving Target Recognition program from the Defense Advanced Research Projects Agency's Strategic Technology Office is a “vital part” of DARPA's “Mosaic Warfare” vision, in which each weapon system is one “tile” in a large force package that overwhelms the adversary. For the program, DARPA is interested in algorithms and collection techniques that allow synthetic aperture radar, or SAR, sensors to “detect, geolocate, and image moving ground targets,” the announcement read. If the goals of the project are met, the MTR program will then work to develop automatic target recognition algorithms for the moving target images. “Emphasis is on military vehicle targets, including slow moving vehicles whose SAR signatures are superimposed on clutter,” the announcement noted. Test for moving target recognition will include airborne data collection experiments to test and evaluate the effectiveness of algorithms. Under the contract, performers will be required to provide the airborne radar sensors and flight services, while the government team will design experiments with moving ground vehicles. DARPA anticipates handing out multiple awards. The MTR program has two phases. Phase one will focus on SAR moving target detection, geolocation and imaging, according to the announcement. It has a performance period of two years and a six-month option. Phase two, which is solicited through the July 15 notice, will center on automatic target recognition. Second phase instructions will be provided to the phase one performers before the end of the phase one base period. No award amount was provided. The U.S. Army is also working through the challenges associated with advanced target recognition capabilities, such as ensuring that algorithms receive adequate and sufficient data to mature and learn. “If you're training an algorithm to recognize cats, you can get on the internet and pull up hundreds of thousands of pictures of cats,” Gen. Mike Murray, commander of Army Futures Command, said in June. “You can't do that for a T-72 [Russian tank]. You can get a bunch of pictures, but are they at the right angles, lighting conditions, vehicle sitting camouflaged to vehicle sitting open desert?” DARPA's mosaic warfare effort includes several other projects under the Strategic Technology Office, including one that would automate aerial dogfighting. The office is also developing two complementary systems that would identify combat systems in an area available for support missions and quickly plan their route to an area. https://www.c4isrnet.com/home/2020/07/21/darpa-issues-solicitation-for-moving-target-recognition-project/
24 décembre 2023 | International, Naval
U.S. Central Command said the drones “were inbound” to the destroyer.