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To the right is an image for a basic capacitive discharge launch control system.  It functions best when a relay system is inserted in place of the safety and launch buttons.  The easiest way to construct this system is on a pre-punched prototyping board that has copper solder pads around each hole on one or both sides.
Launch control systems vary from the most simple, with a battery, continuity light, safety key, and launch button, to the most complex imaginable, with computer controlled automated countdown, multipad relay control, transistorized continuity checking, and LCD status display panels.  For most people, neither of these two extremes is practical due to lack of capabilities at one end or outrageous cost at the other end.  I recommend that you should experiment until you find your own medium, somewhere in between these two ends.
For the Lancer/Essex Team, a multi-pad launch controller is presently in the works.  It is planned to be capable of handling up to fifty pads simultaneously and it will have up to a total of ten relay clusters, each of five pads.  This system will replace the use of personal launch controllers at all team launches.
 

 

 

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