REFLECTOR: Re: Electric

[NMFlyer1 at aol.com]

Scott, 

I definately need to get up there and take a look. Aren't we a strange lot 
that enjoys retrofit or plans-departure hell?.. Oh well.. I enjoy it as well. 

I had origonally planned on using a charging splitter and only running one 
battery at a time. Then I re-read all of the Bob K stuff. Looking at his 
reasoning (and trusting his experience) I changed plans to a blend of his suggestions 
and what fits my airplane. 

I am running both batteries in the nose, with seperate contactors and 
switches for each one. 
The switched side of the contactors are hooked together and supply power to 
all of my forward systems and essential buss. The 2G wire that runs through the 
conduit also connects there. Like I said, I can run either or both batteries 
(or shut them both off if I have to).  

The 2G comes out the back of the conduit and runs straight to the starter 
solenoid lug (Chevy type starter). That is where my aft power buss suppply is as 
well as the attachment for the Alternator. (I do have a fuseable link in that 
line and a pullable field breaker for safety). 

So, to answer your question, If one battery is off line, it is isolated from 
everything including the charging system. According to Bob K, the only reason 
you need to shut off a battery is for power conservation should you lose an 
alternator (after you load shed to critical power items only). Normal mode is 
both batteries ON.  Since I have 2 voltmeters and an ammeter, I should know 
immediately if anything goes amiss with the charging/battery systems. 

I consider 2 working batteries and a charging system as part of my MEL since 
everything in the airplane is electric ( 2-electric fuel pumps, 2 MSD 
ignitions, and electric gyros). 

If you need a hand moving your project, let me know. My schedule is as hosed 
as ever, but I do have some open time. 


Kurt 
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