Mailing List flyrotary@lancaironline.net Message #33456
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: EC2 Current Requirements
Date: Thu, 31 Aug 2006 10:58:33 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
There are two important issues being mixed together here.  One is the max current, which is important for sizing wires and fuses.  The second is typical running current, which is important for sizing alternators, batteries for alternator-out running time.  I think we have it all, but let's see:

                   Running@6000RPM        Surge
EC2                 .25A                   .25A
EM2                 .25A                   .25A
Each Injector       2A                     5A
Each Coil           2A                     5A

I've designed in quite a bit of electrical dependancy, so the alternator-out running time has me concerned.  With all injectors and coils on seperate switches, it should be possible to extend the range by switching off a set of injectors and the trailing coils, and accepting reduced power.  Does that sound viable?

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        ,|"|"|,              Ernest Christley       |
----===<{{(oQo)}}>===----    Dyke Delta Builder      |
       o|  d  |o        http://ernest.isa-geek.org  |
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