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With those drawings done, I placed orders for the additional parts I needed. Almost all of them have arrived now and I had a fun day sorting them all out and putting them away. With the plan mostly finished, I started to make detail drawings of each system. The first picture is of the ground and battery power supplies. Yes, ground power. With my Enigma I want to be able to sit in the plane and learn how to use it fully. With a 20 amp ground power supply, I can sit and play in my plane all day with no power worries!!! The second picture is of the master switch and alternator enable circuits.
The next picture depicts all of the busses, both power and grounds, as well as how the power is supplied. The second picture has two halves, one is of the starter and ignition circuits and the other is of the lighting circuits. All of these plans have had additions and alterations since these pictures have been taken. A lighting circuit for cockpit lights with dimmers has been added for examplt.
The next picture shows some misc. circuits and the E-Bus. In my case the E-Bus is mostly the avionics bus. The E-bus concept is from the AeroElectric and it basically is a bus that has redundant supply paths and is loaded in such a way that battery power alone will be able to safely allow you to finish a flight safely without alternator power. The E now stands for endurance. Keep the loads light on this bus with only essential equipment. In my case, my EFIS has a small 1.5 ahr backup battery that will keep it going even if the E-Bus dies. The last picture is the first layout for a panel, it is a couple of switches short but I will be able to squeeze everything in there. Time to start putting it all together.
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