Wiring Diagrams - Adobe Acrobat Format

by Keith Miller

I have kept the drawings simple ( I think ), which is also the way I installed all the wiring - following BIinglis's advice to treat each part of the electrical circuit as a stand alone circuit. I have also used as a master drawing , one of the classic drawings on the aeroelectric web-site, but I find this a bit too complicated since they try to fit it all onto one drawing , so that's one of the reasons why I have separated out the major components and drawn an electrical drawing for each.

Although initially shocked when I discovered the wiring diagram that came with my King radio and transponder, it turned out to be a piece of cake to wire up, although a special crimping tool was required and it was a bit fiddly.

I have only used 2 sizes of wire 18 GA and 16 GA , which comes from Aircraft Spruce in either White with a red or black stripe, I have used a lot of 22 GA shielded wire for the intercom which I procured locally and it came in either red or green which covers most of the radio intercom stuff. To give some indication of how much wire I used I think you need about 400 Feet of wire. ( excluding the main battery cable)

The main components are marked, and I have two bus bars- a positive "BB" and a ground "BBG". Circuit Breakers "CB"are marked with their ratings , and these were procured locally from RS.

The Battery is way back in the aft of the plane so some serious heavy duty wire is used to feed the master and starter solenoids. The earth ,however ,is a section of aluminium flat bar running the length of the aircraft, with heavy duty braided cable making the connection with the battery and the engine ground.

The charging circuit uses a short length of heavy duty wire to the connector on the starter solenoid - its not shielded so I await and see if this causes any problems

Each of the wires is labelled at both ends using the codes given on the drawings . The labelling is achieved by simply cutting out the code from the drawing and putting it in position and then covered by "Clear" heat shrink sleeve (obviously before crimping the connections - although I have lost count of how many times I forgot this obvious bit of information) .

Finally my drawings are marked with my aircraft registration - GO KMA - in the UK we use letters instead of numbers , and GO KMA stands for Go KIS MY ARSE.


Avionics Switch
Aux Power
Elevator Trim
Fuel Pump
Ignition Switch
Instrument Lights
Master Switch
Oil Sensors
Volts / Amps
Wing Lights