ME - What's interesting about that part of the report is that it concerns the aspect of the enterprise that the GAO's spreadsheet jockeys know most about. How much are we spending, and how much are we accomplishing for what we spend?
GK - Thanks, sometimes it is busy and rooting around the JSF directory for the source takes time. By the way, if the Marines get 420 jets the Navy gets 260... which is not a huge return on the Navy-specific development costs (including a vastly bigger wing).
Moreover, if you go back to history you'll see that LockMart's original preference (in CALF) was for a canard delta and that they switched to the quad-tail when the Navy came on board, because that was the only configuration that accommodated two widely different wing sizes (one big enough for the CV, the other small/light enough for a no-fold STOVL). And all that for less than 10 per cent of the planned build...