HIT Mark IV

The Hyper Intelligence Technologies Mark IV, which took the form of 2.2-metre-tall black and silver robots, was first used in 1953. Operated remotely by an Electronic Analog Controller via radio waves, the Mark IV was incapable of independent thought. The power source consisted of a chemical battering and emergency photo-electric converter.

By 1993 they were in the process of being phased out in favour of the HIT Mark V. However, model #521-B remained unaccounted for.