Ralph Benjamin found that decoding the position of the joystick was not ideal and desired a system that read out relative motion instead of absolute position, and invented the trackball as a solution.
Withington delivered a report to the Secretary on May 15, 1965, recommending a phased array S-Band radar to search and track air targets, six slaved X-band radars for illumination and fire control, a digital control system compatible with the Naval Tactical Data System, a standard missile that could be directed in flight, and a dual-rail launcher.
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