The important bit...has performance improved by 68%? Yes or No?
F-35 Cost Decline Due to Lower Labor Costs, Accounting Changes
Even with the improvement for the F-35 reported yesterday, the projected cost has increased 68 percent since the Pentagon signed its initial contract for the fighter with Bethesda, Maryland-based Lockheed in 2001.
Ref From ORAC 's post
F-35 Cost Decline Due to Lower Labor Costs, Accounting Changes