Sure, you can buy a launch control system. But when you build it yourself, you save not only money, you also learn the basics of electric circuitry.
This booklet gives nine different electronic launch controller plans of varying levels of features, construction complexity, and safety benefits. You can build from a simple inexpensive controller, to a multi-pad system to launch rockets together or sequentially. The parts for these controllers can be found at your local electronics store. They make great classroom projects for science technology classes.
Note: This booklet was written in 1996, and is based on products available at that time. It is the responsibility of the user to modify the plans to fit parts available today.
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