 This is the F-35 Lightning II, which will replace various tactical aircraft, including the US F-16, A-10, F/A-18A-D, AV-8B and British Harrier GR7, GR9s, and Tornado GR4.The projected average annual cost of this program is $12.5 billion with an estimated program life-cycle cost of $1.1 trillion.The JSF program was the result of the merger of the Common Affordable Lightweight Fighter (CALF) and Joint Advanced Strike Technology (JAST) projects.