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From AW&ST:
F-35 Replan Adds Time, Resources For Testing
http://www.aviationweek.com/aw/generic/story.jsp?topicName=Check6&id=news/awst/2011/02/07/AW_02_07_2011_p25-287076.xml&headline=F-35%20Replan%20Adds%20Time,%20Resources%20For%20Testing&channel=&from=topicalreports
More:
Early Warning on JSF Delays
http://www.aviationweek.com/aw/blogs/defense/index.jsp?plckController=Blog&plckScript=blogScript&plckElementId=blogDest&plckBlogPage=BlogViewPost&plckPostId=Blog%3a27ec4a53-dcc8-42d0-bd3a-01329aef79a7Post%3a9d65f000-2715-442a-ae57-50b88a5d7203
Mark
Ottawa
F-35 Replan Adds Time, Resources For Testing
http://www.aviationweek.com/aw/generic/story.jsp?topicName=Check6&id=news/awst/2011/02/07/AW_02_07_2011_p25-287076.xml&headline=F-35%20Replan%20Adds%20Time,%20Resources%20For%20Testing&channel=&from=topicalreports
Details of the revamped F-35 Joint Strike Fighter program are emerging and showing that, despite more than nine years of work, almost six years of challenging development and testing still lie ahead for the Lockheed Martin-led project.
Both flight testing and software development have been replanned using industry-standard productivity rates rather than the aggressive—and unachievable—assumptions on which the original program was built. This means many more sorties to refly flight-sciences test points and for regression testing of mission-system software changes.
The replan adds 2,000 flights to the program—for a total of 7,800, just 600 of which have been completed—and extends development testing to October 2016. In addition to more refly and regression flights, the new plan adds sorties for test-pilot training and builds in a 500-flight margin for unexpected flight-sciences and mission-system issues.
For the mission system, the replan means more software development engineers, more integration laboratory capacity—and more time. The final software standard, Block 3C, is scheduled to be released to flight test in June 2015. Of the 8 million lines of code on the aircraft, “we have 4 million to do, but we still have four years of development,” says Eric Branyan, deputy general manager of the F-35 program.
Software development has undergone a significant change with the decision to “sunset” the Block 0.5 standard originally planned to be released for training. Numerous issues with the software led to the decision to move early to the Block 1 standard, which includes new processing hardware, says Branyan.
In F-35 parlance, Block 0.5 provides basic “aviate and navigate” capabilities, Block 1 introduces onboard sensor fusion, Block 2 integrates weapons and data links, and Block 3 provides the full capability planned for development...
Software development has been replanned around conservative industry-standard rates for defects per line of code, requiring additional resources. Lockheed is adding 110 software developers to the 300 already in place, and an extra integration test line will be ready by late 2012. “We have much higher confidence in the schedule,” says Branyan...
In addition to increasing the resources for flight tests, the replan essentially decouples flight-sciences work on the three variants, he says. This is intended to overcome the impact of delays in testing the short-takeoff-and-vertical-landing (Stovl) F-35B on the smoother-running conventional-takeoff-and-landing F-35A and F-35C carrier variant [emphasis added]...
More:
Early Warning on JSF Delays
http://www.aviationweek.com/aw/blogs/defense/index.jsp?plckController=Blog&plckScript=blogScript&plckElementId=blogDest&plckBlogPage=BlogViewPost&plckPostId=Blog%3a27ec4a53-dcc8-42d0-bd3a-01329aef79a7Post%3a9d65f000-2715-442a-ae57-50b88a5d7203
Mark
Ottawa