Electrical System:

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(my electrical files may change daily as I have regular brain spasms that lead to startling revelations, ultimately leading to the conclusion that what I had was what I "wanted" and no longer what I "need")

I created some unique challenges when I decided to use an electronic fuel injection and ignition system and an EFIS for my flight instruments. I decided I wanted a system that uses two batteries and one alternator and still be able to have electrical power for at least 35 minutes after losing either battery or the alternator. This system design is a variation of 'Lectric Bob's "Foldout 4" design, utilizing a main battery buss, an essential buss and an engine buss. Having the ability to shut everything down and the engine to continue running off of the engine buss was the focus of the design. If the battery that powers the engine buss malfunctions, I can switch batteries and continue to keep the engine isolated from any other problems.

 

WIRING DIAGRAMS:

LATEST WIRING SCHEMATIC:

Click here to access my "interactive" wirebook

This new format really makes trouble-shooting a breeze

PDF Format:  For everyone else, I've converted each page of my Wire Book into PDF format. They are still available in the Glasair 446 Library. (some may not be fully updated)

 

Wire Sizing:

Mil-W-5088L helps to calculate proper wire sizes.  Scott Dahlgren used this information to provide experimental aircraft builders with this really neat Excel spreadsheet.

Copper wire chart for DC service - Mil-W-5088L Ver. 3 (84kb)

Nav and Landing Lights:

LED Nav Lights With Integrated Landing Light Info, Click Here.

Fun Stuff:

BMA EFIS Lite homebrewed key pad

Other Stuff:  Soob ECU research diagrams

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