; (2) replace the SACCS processors at launch control centers; (3) provide internet protocol connectivity for wing-wide command centers of the LGM–35A Sentinel intercontinental ballistic missile program; and (4) include such other capabilities necessary to address the evolving requirements of the LGM–35A Sentinel intercontinental ballistic missile program as the Secretary considers appropriate. 1645. Pilot program on development of reentry vehicles and related systems (a) In general The Secretary of the Air Force may carry out a pilot program, to be known as the Reentry Vehicle Flight Test Bed Program , to assess the feasibility of providing regular flight test opportunities that support the development of reentry vehicles to— (1) facilitate technology upgrades tested in a realistic flight environment; (2) provide an enduring, high-cadence test bed to mature technologies for planned reentry vehicles