U.S. Navy Mark 86 Mod 3 Digital Gun Fire Control System (1974)

Synopsis

This 1974 U.S. Navy film (MN-11478-A) in an introduction to the Mk 86 ship gun fire-control system. The film opens with a ship sailing at sea, and viewers see a Mk 45 gun mount on the bow of the deck. The 5-inch/54-caliber gun fires several rounds. Operators man the fire control systems in the fire control room (01:28). The film shows the hardware for the system, including two antennas, radars, two television cameras for sighting (02:34), and the Mk 45 gun mounts. Illustrations are used to show how the different computer systems interface with each other (03:23). The film shows the TWS radar (04:07) and its transmitter and receiver unit, then the film shows the Air Track Radar AN/SPG-60 and its equipment transmitter, receiver, antenna control, signal data converter, and remote optical sighting camera (04:30). Viewers see the high-speed general purpose stored-program computer and the unit-supported data processing unit (05:30). System fires one of the guns (06:10). The film then shows the responsibilities of the COC Operator during Surface Radar Mode of the Mk 86 system (06:50). The COC operator sits at his console and orders an “engage of target.” He manipulates the track ball on the console, pushes the “ball enter” button, then enters the coordinates of the target. There is a good shot of the control panel with displays, buttons and switches, including “target range,” “bearing,” gun mount status indicators, “arc of fire” switch, and the “gun assign” switches. The GCC…

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Details

Running time

25 minutes

Collection

Ephemeral Films

Subjects on the Internet Archive

• Stock Footage