hahahahaha
As we all KNOW, the final 10% of any software project will take 90% of the time to write....
The Center for Defense Information estimated that the program would be restructured with an additional year of delay and $5 billion in additional costs.[78] On 5 November 2010, the Block 1 software flew for the first time on BF-4 which included information fusion and initial weapons-release capability.[79] As of the end of 2010, only 15% of the software remained to be written, but this included the most difficult sections such as data fusion.[80] In 2011, it was revealed that only 50% of the eight million lines of code had been written and that it would take another six years and 110 additional software engineers in order to complete the software for this new schedule.[81] The total estimated lines of code for the entire program (onboard and offboard) had grown from 15 million lines to 24 million lines by 2012.[82]
http://en.wikipedia....F-35_Lightning_II