This time, we will take a look at my ignition installation on my 2.6m Composite-ARF Edge 540. This is an all-composite aircraft that is powered by a Desert Aircraft 120cc engine. Since this is a composite airframe, it has a few unique areas. For example, the motor dome is a part of the fuselage, which saves weight and ensures proper alignment of the firewall.
After my engine was mounted, it was time to secure the ignition. I opted to secure the ignition inside the fuselage. Resulting, I would have to make a few openings for both the pick-up sensor as well as the ignition shielded plug wire.
Before I got started, I made a trip to my local hardware store and purchased two rubber grommets that were large enough for the shielded plug wire as well as the pick-up sensor lead. Then, I went to a local electrical store and purchased plastic “spiral wrap” insulation to cover the shielded plug wires. Now, it was time to get back to the build!
I used a Dremel and made two openings on the fiberglass skin so that pick-up sensor as well as the ignition shielded plug wire could be inserted through. I then glued in the two rubber grommets in place using Zap Goo. Once cured, I inserted the shielded wire and pick-up sensor through the grommets. Now, no matter how much vibration existed, these electrical components would not become cut!