Although the KFX-E was smaller than the F-35 Lightning II, it was heavier than both the T-50 and F-16, with a 14 percent higher internal fuel capacity than the F-16C Block 40 at 6.36 tons.
Meskipun KFX-E lebih kecil dari F-35 Lightning II, beratnya lebih tinggi daripada T-50 dan F-16, dengan kapasitas bahan bakar internal 14 persen lebih tinggi daripada F-16C Blok 40 dengan 6,36 ton.