sentences:  Fortuna was incorporated into BUIC I, a manual back-up interceptor control system implemented in 1962.BUIC I provided limited command and control capability in the event the SAGE system was disabled.In 1963, the AN/FPS-20A was removed, and the makeup of the radars at Fortuna consisted of an AN/FPS-35 search radar along with AN/FPS-6 and AN/FPS-90 height-finder radars.