"...customers are grappling with the reality of a five-year delay in developing the aircraft, as a Congressional hearing last week made clear...
...So the F-35 program may feel it can laud its progress in completing 837 test flights ahead of plan this year, and 1,432 since the aircraft first flew in December 2006. And it may be able to put a big tick against completing 72 vertical landings (VL) during initial F-35B sea trials last month -- and passing the 200 VL mark for the program early in October. But the expensive mess the program delays have caused is only just unfolding."
LOTS of details at the URLs.
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from above story:
Fiscal Year 2012 Combat Aviation Programs Update 02 Nov 2011
Subcommittee on Tactical Air and Land Forces