X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost03.isp.att.net ([204.127.217.103] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4003838 for flyrotary@lancaironline.net; Sat, 05 Dec 2009 09:19:28 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.217.103; envelope-from=keltro@att.net DKIM-Signature: v=1; q=dns/txt; d=att.net; s=dkim01; i=keltro@att.net; a=rsa-sha256; c=relaxed/relaxed; t=1260022767; h=Content-Type: MIME-Version:In-Reply-To:Message-Id:Date:Subject:To:From; bh=TxD6v2 tQAnUERddRYwtRRaI9ZVIKuas07ho8YrciKtE=; b=pMimA8XNK+vu3xjOMgr2sz49R CiysS7dWCq/5v4iXtmFCmt+/WRdCxKWRJfjw1ht4xIBLlvMIJox0jEaAQP35Q== Received: from fwebmail14.isp.att.net ([204.127.221.114]) by isp.att.net (frfwmhc03) with SMTP id <20091205141851H0300rsji1e>; Sat, 5 Dec 2009 14:18:51 +0000 X-Originating-IP: [204.127.221.114] Received: from [208.114.36.24] by fwebmail14.isp.att.net; Sat, 05 Dec 2009 14:18:51 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Primer in AC/DC Electricity Date: Sat, 05 Dec 2009 14:18:51 +0000 Message-Id: <120520091418.24309.4B1A6BCB0006C18100005EF522230650629B0A02D29B9B0EBF019D9B040A05@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_24309_1260022731_0" --NextPart_Webmail_9m3u9jl4l_24309_1260022731_0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable George, Most factory built a/c have 24 volt systems now.............The easy av= ailability of the automotive alternators probably is ths reason most experimental a/c have 12 volt syste= ms............The cost of=20 24 volt batteries and alternators is a major factor also...............IMHO -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 -------------- Original message from "George Lendich" : --------------=20 =EF=BB=BF=20 Kelly, Being electronically challenged I had a quick look. It says 24 volts is bet= ter for aircraft use eliminating the need for extra batteries and alternato= r, I'm wondering why builders collectively don't already go that way. Are t= here complications or additional expenses to be considered or are auto conv= ersions typically locked in to a 12 volt system for one reason or another -= perhaps just the alternator. George ( down under) Group, Some of you may have already seen this and to others this may be k= nowledge that you carry=20 around in your head and use everyday but to someone like me whose schooling= in AC/DC (Navy)=20 electricity was 50 plus years ago and also something I do not use everyday = the following link has refreshed my old brain..............Hope some of the group finds it useful.= ............. http://www.eaa.org/experimenter/articles/0903_aircraft_wiring.pdf -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 --NextPart_Webmail_9m3u9jl4l_24309_1260022731_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_24309_1260022731_1" --NextPart_Webmail_9m3u9jl4l_24309_1260022731_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
George,
    Most factory built a/c have 24 volt systems now....= .........The easy availability of the automotive
alternators probably is ths reason most experimental a/c have 12 volt = systems............The cost of
24 volt batteries and alternators is a major factor also..............= .IMHO
--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d



 
-------------- Original message from "George Lendich" <le= ndich@aanet.com.au>: --------------

=EF=BB=BF
Kelly,
Being electronically challenged I had a qu= ick look. It says 24 volts is better for aircraft use eliminating the need = for extra batteries and alternator, I'm wondering why builders collectively= don't already go that way. Are there complications or additional expenses = to be considered or are auto conversions typically locked in to a 12 volt s= ystem for one reason or another - perhaps just the alternator.
George ( down under)
Group,
         Some of you may have = already seen this and to others this may be knowledge that you carry <= /DIV>
around in your head and use everyday but to someone like me whose scho= oling in AC/DC (Navy) 
electricity was 50 plus years ago and also something I do not use ever= yday the following link has
refreshed my old brain..............Hope some of the group finds it us= eful..............
 
--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d



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