; and (iii) the advancement of manufacturing processes, technologies, inspection methods, and certification pathways for bonded and integrated fail-safe damage tolerant aircraft structures. (d) Program elements (1) For each of the programs established under subsection (c), the Administrator shall— (A) include development of experimental aircraft (X–Plane), experimental systems (X–System), multiple technologies, and all necessary supporting flight assets; (B) pursue a robust technology maturation and flight validation program that addresses challenges in technology development and maturation; (C) improve necessary facilities, flight testing capabilities, and computational tools to support the program; (D) only award primary contracts for design, procurement, and manufacture to United States companies, consistent with international obligations and commitments; (E) coordinate research and flight demonstration activities with other Federal agencies, as appropriate, and the United States aviation manufacturing community; and (F) ensure that the program remains aligned with the Aeronautics Strategic Implementation Plan, and any updates to such plan. (2) For the advanced structures, materials, and manufacturing program, the Administrator shall— (A) offer to enter into a public-private partnership, which shall be known as the Advanced Structures, Materials, and Manufacturing Program , between— (i) NASA; and (ii) appropriate public and private entities; (B) ensure a 50-percent Federal cost share for applicable research; (C) include as a key partner the Federal Aviation Administration; (D) include as a partner any other Federal agency the participation of which the Administrator determines will further the purpose of the partnership