X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4003086 for flyrotary@lancaironline.net; Fri, 04 Dec 2009 17:46:29 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta02.mail.rr.com with ESMTP id <20091204224554185.RSFO14763@cdptpa-omta02.mail.rr.com> for ; Fri, 4 Dec 2009 22:45:54 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Primer in AC/DC Electricity Date: Fri, 4 Dec 2009 17:46:25 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CA7509.B352BD60" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 In-Reply-To: Thread-Index: Acp1Ir1fUpau82KkTgivkkQMvhY3wQAEE7ng Message-Id: <20091204224554185.RSFO14763@cdptpa-omta02.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CA7509.B352BD60 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit George, nothing really stops you from using 24 volts. However, an auto conversion generally starts out as a 12V system meaning you can get the starter, alternator, injectors (where do you find 24 volt injectors {:>)), etc with the engine (most of the time). Plus when you start talking about the range and availability and cost of 24 volt systems (and the need to have converters for any 12volt systems) you are generally talking "AIRCRAFT" prices. Besides, I can dead stick my 12Volts aircraft in on the highway near a gasoline station and pick up a new 12V battery {:>) if it goes dead - can't do that with a 24 volts battery {:>). Yes, there are certainly advantages in using a 24 volts system - but, like anything else there are trade offs. Just my $0.02 Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of George Lendich Sent: Friday, December 04, 2009 3:45 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Primer in AC/DC Electricity Kelly, Being electronically challenged I had a quick 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 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 knowledge that you carry around in your head and use everyday but to someone like me whose schooling in AC/DC (Navy) 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 "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0009_01CA7509.B352BD60 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

George, nothing really stops you = from using 24 volts.  However, an auto conversion generally starts out = as a 12V system meaning you can get the starter, alternator, injectors (where do = you find 24 volt injectors {:>)), etc with the engine (most of the = time).

 

Plus when you start talking about = the range and availability and cost of 24 volt systems (and the need to have converters for any 12volt systems) you are generally talking = “AIRCRAFT” prices. 

 

Besides, I can dead stick my = 12Volts aircraft  in on the highway near a gasoline station and pick up a = new 12V battery {:>) if it goes dead – can’t do that with a 24 = volts battery {:>).

 

Yes, there are certainly advantages = in using a 24 volts system – but, like anything else there are trade = offs.

 

Just my = $0.02

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of George Lendich
Sent: Friday, December = 04, 2009 3:45 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Primer in AC/DC Electricity

 

Kelly,

Being electronically challenged I had a quick 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 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 knowledge that you = carry

around in your head and use everyday but to someone like me = whose schooling in AC/DC (Navy) 

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..............

 

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold




__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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