My Wooden Airplane
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3/29/2013 - 4/4/2013

Spark Plug Wires and Coils

I decided it was finally time to make the spark plug wires and install the ignition coils. Nothing fancy here, except maybe for the "coil joiner" (sometime called a "coil switcher"). Since there are two sets of points, there are two coils. Depending on which set of points is energized, that's the coil that will deliver the spark. Theoretically, both sets of points could be energized simultaneously, which would mean both coils would be delivering their sparks simultaneously, which is probably how I'll operate the plane during critical phases of flight.

Total Time: 5.5 hrs.