The Pentagon expects to pay significantly less than originally estimated for retrofits to the first 10 lots of stealthy F-35s produced by Lockheed Martin, according to a recent report for Congress. The overall estimate is down $100 million from last year’s to $1.65 billion. But it is a sizable drop from the projection in September 2012 of $2.57 billion when the Pentagon submitted its first report on so-called concurrency cost – that is, the price of retrofits needed to production ...


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