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Date: Fri, 24 Nov 2006 08:45:26 -0500
From: Bill Bradburry <bbradburry@allvantage.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Z-19 questions
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OK, This is my fall back position.  I have posed this question on the 
Aerolectric list for a couple of days and no answer. (although the email 
did get caught up in an embarrasing event!)  90% of you guys have 
already wired your planes and followed Bob N's advice, so how did you do 
the redundancy on the fuel pumps, coils, and injectors?

from the AE list:

   "I am installing a fuel injected Mazda rotary engine and trying to follow the Z-19 guidelines for dual battery, single alternator.  Looking at the engine primary and secondary circuit, I need to install a primary and secondary fuel pump, plus I want to power the coils and the injectors 
    off of the battery buss.
    How should I do this?  I suppose I could take the fuel pump diode output and switch it to either of the two fuel pumps???
    What about the coils and injectors?  Should I set up similar circuits 
    for them, or is there a better way to reduce parts???
    I would appreciate any guidance you guys could give me.
    Thanks and Happy Thanksgiving!
    Bill B