`` A defect that bullets do not fly straight '' etc. are reported on stealth fighter F-35 also introduced by JASDF
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Regarding the US Stealth Fighter F-35, which the Japanese Self-Defense Force has also introduced, the U.S. Department of Defense's Operational Testing and Evaluation Division (DOT & E) said, 'Bugs that do not fly straight' and '873 software defects in total Bloomberg announced.
F-35's Gun That Can't Shoot Straight Adds to Its Roster of Flaws-Bloomberg
https://www.bloomberg.com/news/articles/2020-01-30/f-35-s-gun-that-can-t-shoot-straight-adds-to-its-roster-of-flaws
DOD tester's report: F-35 is still a lemon | Ars Technica
https://arstechnica.com/information-technology/2020/01/not-a-straight-shooter-dod-review-cites-fleet-of-faults-in-f-35-program/
The U.S. Air Force specification F-35A , which is a derivative of the F-35, has the GAU-22 / A 25mm cannon fixed inside the fuselage as a unique weapon, the same variants of the F-35B and F-35C. The F-35A, which is a different type of aircraft and is deployed by the SDF, is mainly the F-35A. However, Bloomberg's earliest report said the F-35A had a `` unacceptable level of fire '' due to the gun being mounted in a different position than intended. That. It seems that improvements are being made to the gun mount that fixes the cannon, but it has not reached the testing stage at the time of the annual report, reporting that the use of F-35A cannons is restricted. Has been done.
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In addition to cannon problems, 'software problems' have been reported extensively. The F-35 has a unique information system for maintenance called the Automatic Logistics Information System (ALIS) , which connects a terminal to the aircraft to diagnose failure points and corrective measures, and also checks the inventory of replacement parts. Has a system. However, ALIS is in 2015 it was 80% of misinformation of the diagnosis result of 'problem' found such as, we have continued to be pointed out the existence of the defect.
In this annual report, as of November 2019, a total of 873 bugs were found in ALIS and other software installed on the F-35. The report in September 2018 indicated 917 defects, so it can be said that it is 'declining'. However, on January 22, 2020, the Pentagon announced that it would replace ALIS with a new cloud-optimized system, Operational Data Integration Network (ODIN), with a data integration environment and application suite .
Pentagon announces replacement for F-35's ALIS | Jane's 360
https://www.janes.com/article/93861/pentagon-announces-replacement-for-f-35-s-alis
As a result of evaluating each of the above problems, there were 13 'defectives requiring correction' classified as 'Category 1'. The F-35 development department is working to fix the flaws, but as more and more new flaws are discovered, many important issues, such as the cybersecurity issues pointed out in earlier reports, have been identified. It is said that defects still remain.
DOT & E noted that less than 80% of F-35s deployed in the U.S. military have cleared the 'Mission capable' index, which indicates that they can be used for at least one type of combat mission. Above all, the
Japan's Air Self Defense Force has deployed the most F-35s outside of the U.S. military. The Defense Charter, which was approved by the Cabinet in December 2018, has decided to increase the number of F-35s deployed to the JASDF to a total of 147 aircraft.
F35 fighter to buy 105 aircraft, 42 of which are F35B for `` aircraft carrier ''-Mainichi Newspaper
https://mainichi.jp/articles/20181213/k00/00m/010/063000c
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