Interior of the Northrop Corporation's Plant, showing the "missile mission" simulator, ca.1950

Photograph of the interior of the Northrop Corporation's Plant, showing the "missile mission" simulator, ca.1950. A man in a suit stands before a large board, and connects wires from one point to another.; Photoprint reads: "Four plastic panels mounted across the back of 'Mimi', Northrop Aircraft's 'missile mission simulator, serve as a terminal board interconnecting all the units of the guidance system undergoing test. Each terminal connected in the system is a numbered test jack used to quickly pinpoint trouble spots during the rigourous examination. Here Frank De Barry, Northrop test fixture engineer, arranges patch cables to connect metering on the front panel to various test jacks on the terminal board. Signals are recorded on oscillographs and voltages are measures on meters at each check point to determine the accuracy of any segment of the system. From: Public Relations Division. Northrop Aircraft, Inc. Hawthorne, California"