Complex sentence: This F-16X'Falcon 2000' featured a delta-wing planform like that of the F-22; together with the fuselage stretch to accommodate the new wing design, the F-16X would have 80% more internal fuel volume.
Split into simpler sentences: This F-16X'Falcon 2000' featured a delta wing like that of the F-22; together with a fuselage stretch to accommodate the new wing. The F-16X would have 80% more internal fuel volume.