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Date:  12-5-2015
Number of Hours:  5.00
Manual Reference:  
Brief Description:  Electrical Planning

This post is more to document my thought process on the elecrtical system/avionics rather than posting pics of progress.

As mentioned in an earlier post I plan on using the VP-X pro as part of the infrastructure. After reading Bob Nuckolls' book several times I also decided to base the archetecture on the Z13/8 plan. The question is how to integrate the VP- into the Z13/8 and not loose any of the advantages of both.

I plan on two alternators, main and a smaller back up, one battery. There will be an essentials (endurance) buss. I will maintain the ability to flip a single switch to recover from any equipment failure. Only failure of the VP-X or main battery relay will leave me with only the battery endurance to get on the ground. I will clean up my drawing and post a picture with the details later.

So the basic plan is to build the backbone of the system first. Battery contactor to firewall pass thru, starter contactor, VP-X, battery buss, esentials buss, common ground points, etc..

The VP-X has around 32 assignable output circuits. Each output circuit can be configured to a limit amperage of whatever you want up to 5-15 amps depending on the specific output chosen. Each one of those can be individually or group assigned to one of ten switch inputs or configured to always on/off.
So for example I have grouped my avionics into 3 groups, each one controlled by its own switch. I can turn each group off/on by one switch, say if I need to shed load due to an alternator failure. I also have all of my interior and exterior lighting assigned their own grouped switches.
Alternator circuts, flap and trim systems are all wired as mini systems to their own VP-X interfaces. So with the VP-X ordered I can start
soon putting each layer in place.
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