Overhead Wiring

Overhead Wiring

• The new Rotorway Talon has a completely different wiring system than the old design and needs no modification.

Below is a factory wiring diagram showing the circuits that you may wish to alter.

Click on Diagram for larger Picture

In the diagram above, I cut the jumper wire between fuse 4 and fuse 3 as close as I can to fuse 3. I cut the jumper wire between fuse 3 and fuse 2 in the center of the wire. I cut the jumper between fuse 2 and fuse 1as close to fuse 2 as I can.

I then strip about 1/2" of the insulation off of the end of the wire from fuse 4, both ends of the wires at the cut of the jumper cut between fuse 3 and 2, and the end of the wire that was cut off fuse 2 and is still attached to fuse 1. I then solder a new jumper between fuse one's wire and fuse three's wire, and another jumper between fuse two's wire and fuse four's wire. I use about a 6" piece of wire of appropriate gauge and first tin the wire ends and then solder one end to one of the wires that I prepared on the overhead panel. I then slide two pieces of shrink wrap onto the new jumper after the solder has cooled and then solder the other end to the appropriate cut and prepared former jumper. Once all soldering is finished I use a heat gun to shrink the shrink wrap over the solder joints.

Now the FADEC1 fuse 1 is connected to IGN1 fuse 3 by the new jumper and FADEC2 Fuse 2 is connected to IGN1 fuse 4 by the second jumper. By doing this we now have separated the FADEC computers, Ignitions,with their shared wired Injection systems, and fuel pumps into two independent systems and have true redundancy should one system fail.

In the drawing to the right you can see the 3 factory jumper wires that I will cut, they are in red and on the right side of the photo.
In the photo to the right you can see the two new jumpers that are installed(orange). They were then secured neatly and firmly with wire ties and then spiral wire wrap was applied to the harness that exited the back of the overhead panel.

If you own a Rotorway Exec 90 it too has a jumper between the ignition systems that you may wish to remove. Take a look at your wiring diagram and you will see that both ignition systems are tied together in the overhead panel so that if one shorts out it can take the other one with it.

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