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Z-14 Dual Battery, dual alternator. Wire sizing, educate m

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nuckolls.bob(at)aeroelect
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Posted: Thu Jan 06, 2011 5:41 am Post subject: Z-14 Dual Battery, dual alternator. Wire sizing, educate m

At 06:55 PM 1/5/2011, you wrote:

 	  Quote: 	
		  

<terry.mortimore(at)shaw.ca>

Hi Gang:



I"m about to start the installation of the Z-14 system into my RV-6A.


	


    Why are you putting the mother of all electrical

    systems into an airplane that is not likely to

    use/need a small fraction of the capability?

    This system was conceived to meet mission

    requirements of airplanes like the Lancair IVP

    flown for long distances at high altitudes,

    perhaps over hostile terrain at night while

    flitting about between pockets of unfriendly

    weather.



    99% of all OBAM flight profiles do not demand

    so high a level of risk reduction in the electrical

    system.  99% of all accidents do not have root causes

    in electrical system failures. So it would seem that

    Z13/8 would provide a level of reliability 10X better

    than type certificated aircraft but with a lot less

    expense and WEIGHT associated with Z-14.



    Can you tell us how your utilization of the

    airplane will realize a good return on investment

    for trading fuel and baggage weights for

    hardware?

 	  Quote: 	
		    I've absorbed and understand most of the drawing, but one thing 

 confuses me and that is the size of the wire running to the Starter.


	


    The z-figures are architecture drawings, not wiring diagrams.

    Wire sizes, protection sizes and assignment of loads throughout

    the system are all subject to analysis and adjustment depending

    on your particular suite of equipment and engine support

    requirements.



    If your battery(ies) are all "up front" and

    on a metal airplane, you can use 4AWG throughout

    for fat wires. Where are you planning to locate

    battery(ies)?



    More importantly, can you share the thoughts that

    drove you to burden this light, fast and efficient

    airframe with so much hardware?

   Bob . . .

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terry.mortimore(at)shaw.c
Guest

Posted: Thu Jan 06, 2011 12:57 pm Post subject: Z-14 Dual Battery, dual alternator. Wire sizing, educate m

---

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