PROPOLOGY
Vehicle Launch Ground Control Panel -
Manufactured by the Boeing Compnay (circa 1960's)
Launch Procedure
"LAUNCH SEQUENCER" is operated as depicted below (all other indicators located above, remain static). Six correctly sequenced button-presses, will result in vehicle launch. Each step is acknowledged by a change in indicator color with each button press. Additionally, the next relevant pushbutton in the sequence illuminates or changes color to convey system status, and direct the operator's attention to the next step in the launch sequence.