X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf04aec.mail.bellsouth.net ([205.152.59.52] verified) by logan.com (CommuniGate Pro SMTP 5.0.7f) with ESMTP id 951814 for flyrotary@lancaironline.net; Tue, 24 Jan 2006 09:50:15 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.52; envelope-from=sladerj@bellsouth.net Received: from ibm71aec.bellsouth.net ([65.11.175.40]) by imf24aec.mail.bellsouth.net with ESMTP id <20060124135954.VDYK12910.imf24aec.mail.bellsouth.net@ibm71aec.bellsouth.net> for ; Tue, 24 Jan 2006 08:59:54 -0500 Received: from JSLADE ([65.11.175.40]) by ibm71aec.bellsouth.net with ESMTP id <20060124135953.RNYK29035.ibm71aec.bellsouth.net@JSLADE> for ; Tue, 24 Jan 2006 08:59:53 -0500 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Two Alternators? Date: Tue, 24 Jan 2006 08:59:49 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_023E_01C620C4.8853F400" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_023E_01C620C4.8853F400 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Mark, How do you charge the backup battery? A diode? Got a part number? I'm just switching a contactor right now, but I'd like to isolate the backup. Regards, John -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Mark R Steitle Sent: Tuesday, January 24, 2006 8:21 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Two Alternators? Doug, I have dual alternators and dual batteries per Aero-Electric Z-14 architecture. I'm using the small 55amp ND units. They weigh about half of what the Mazda alternator weighs, so I rationalized that there was very little weight penalty to using two alternators, but a significant safety improvement. With an electrically dependent engine and all electric panel, I decided this was the way to go for me. The cross-feed contactor connects both Odyssey batteries during starting, so I am able to use smaller batteries than would be required to start the 3-rotor with only one battery. Every annual, I plan on replacing the main battery, rotating the 1 year old main battery to the aux position, and move the 2 year old aux battery to my Goldwing motorcycle. That way the main battery will be less than one year old, the aux battery will be 1 - 2 years old, and the motorcycle battery will be 2-3 years old. I'll send you a picture off-line. Mark S. ---------------------------------------------------------------------------- -- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of DLOMHEIM@aol.com Sent: Tuesday, January 24, 2006 6:11 AM To: Rotary motors in aircraft Subject: [FlyRotary] Two Alternators? I am debating the future use of two batteries vs. two alternators and I was wondering if anyone in the group has mounted a second alternator and if so if they had any pictures of its mounting location, etc. Thanks for the information. Doug Lomheim RV-9A / 13B OK City, OK ------=_NextPart_000_023E_01C620C4.8853F400 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Mark,
How do=20 you charge the backup battery? A diode? Got a part = number?
I'm=20 just switching a contactor right now, but I'd like to isolate the=20 backup.
Regards,
John
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Mark R=20 Steitle
Sent: Tuesday, January 24, 2006 8:21 = AM
To: Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Two=20 Alternators?

Doug,

I have dual = alternators and dual batteries per Aero-Electric Z-14 = architecture.  I’m=20 using the small 55amp ND units.  They weigh about half of what = the Mazda=20 alternator weighs, so I rationalized that there was very little weight = penalty=20 to using two alternators, but a significant safety improvement.  = With an=20 electrically dependent engine and all electric panel, I decided this = was the=20 way to go for me.  The cross-feed contactor connects both Odyssey = batteries during starting, so I am able to use smaller batteries than = would be=20 required to start the 3-rotor with only one battery.  Every = annual, I=20 plan on replacing the main battery, rotating the 1 year old main = battery to=20 the aux position, and move the 2 year old aux battery to my Goldwing=20 motorcycle.  That way the main battery will be less than one year = old,=20 the aux battery will be 1 - 2 years old, and the motorcycle battery = will be=20 2-3 years old.  I’ll send you a picture off-line. =20

 

Mark S.=20

 

From:=20 Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On=20 Behalf Of DLOMHEIM@aol.com
Sent: Tuesday, January 24, 2006 = 6:11=20 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Two=20 Alternators?

 

I am = debating the=20 future use of two batteries vs. two alternators and I was wondering if = anyone=20 in the group has mounted a second alternator and if so if they had any = pictures of its mounting location, = etc.

 

Thanks for = the=20 information.

 

Doug=20 Lomheim    RV-9A / = 13B

OK City,=20 OK

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