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short course on bus loading (was Q on Z-13 and E-Bus

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dustinp(at)hughes.net
Guest

Posted: Mon Oct 16, 2006 5:57 am Post subject: short course on bus loading (was Q on Z-13 and E-Bus

Bob et all,



One of the first things every builder is told to do when designing the 

electrical system for their OBAM aircraft is to determine the type of flying 

they intend to do, figure out what equipment they need to comfortably fly 

that way, determine the CONTINUOUS load of that equipment, and size your 

bus's, wires, fuses, alternators, batteries, etc. accordingly.



It is information that seems pretty hard to come by in most manufacturers 

specs, yet supposedly everyone who has designed a panel and electrical 

system to support it has needed this info. Where did they get it?



It seems to me that one of the most valuable resources that could be made a 

permanent yet updatable part of this list either in the FAQ's, or archives, 

or somewhere, would be a list of the most commonly used equipment (I don't 

think it would really be that long ) and continuous load numbers for that 

equipment. I'm not saying this should necessarily be a job for you (although 

your contributions would certainly be welcome), but just a have this forum 

as a home for the list.



It could be a categorized list ( Nav/Coms, Coms, Transponders, MFD's, 

EFIS's, T&B's etc.) and be something that subscribers could add to, and 

update as they found numbers for new equipment as it hit the market, yet the 

older equipment would still be there for those not using the latest, and 

greatest in their plane.



Is there some place that you or anyone else on this list knows of where this 

info is readily available?



Thanks for your thoughts, and any light you can shed.



Dustin Paulson

GlaStar builder





 	  Quote: 	
		   Time: 02:22:06 PM PST US

 From: "Robert L. Nuckolls, III" <nuckollsr(at)cox.net>

 Subject: Re: short course on bus loading (was Q on Z-13 

 and

 E-Bus)

   If you're going to have a plain-vanilla, Z-11 or an SD-8

   enhanced Z-13, you figure out what gizmos are useful

   for the en route mode of flight, i.e. ENDURANCE MODE.

   Add up CONTINUOUS loads on these devices and then

   see if you have sized the battery for ALT OUT ENDURANCE

   with NO ASSIST for the design goals you've established.

   Rethink your distribution of loads based on this

   philosophy and see what it looks like.



   Bob . . .


	


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schamber(at)glasgow-ky.co
Guest

Posted: Mon Oct 16, 2006 1:36 pm Post subject: short course on bus loading (was Q on Z-13 and E-Bus

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