[BenLurkin]

"READY TO GO - Air Force Major Gen. C.R. Davis, program executive officer for the F-35 Lightning II program, speaks at the unveiling of Northrop Grumman Corp.'s center fuselage for the first weight-optimized Air Force F-35 Lightning II aircraft." Northrop Grumman

[MediaMole]

"weight-optimized "

Does that means they got it just heavy enough that it will almost become airborne using current engine technology?