X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m21.mx.aol.com ([64.12.137.2] verified) by logan.com (CommuniGate Pro SMTP 5.0.7f) with ESMTP id 952153 for flyrotary@lancaironline.net; Tue, 24 Jan 2006 13:58:03 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.2; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m21.mx.aol.com (mail_out_v38_r6.3.) id q.103.70146016 (15899) for ; Tue, 24 Jan 2006 13:57:12 -0500 (EST) Received: from FWM-D35 (fwm-d35.webmail.aol.com [205.188.162.11]) by air-id09.mx.aol.com (v108_r1_b1.2) with ESMTP id MAILINID92-3e1b43d67887ef; Tue, 24 Jan 2006 13:57:11 -0500 Date: Tue, 24 Jan 2006 13:57:09 -0500 Message-Id: <8C7EF2F1CAEF676-A30-1FFDE@FWM-D35.sysops.aol.com> From: wrjjrs@aol.com References: Received: from 66.127.99.234 by FWM-D35.sysops.aol.com (205.188.162.11) with HTTP (WebMailUI); Tue, 24 Jan 2006 13:57:09 -0500 X-MB-Message-Source: WebUI X-MB-Message-Type: User In-Reply-To: X-Mailer: AOL WebMail 15106 Subject: Re: [FlyRotary] Re: Two Alternators? Content-Type: multipart/alternative; boundary="--------MailBlocks_8C7EF2F1CAEF676_A30_1F55E_FWM-D35.sysops.aol.com" MIME-Version: 1.0 To: flyrotary@lancaironline.net X-AOL-IP: 205.188.162.11 X-Spam-Flag: NO ----------MailBlocks_8C7EF2F1CAEF676_A30_1F55E_FWM-D35.sysops.aol.com Content-Type: text/plain; charset="us-ascii" Mark, I would be very interested as I'm running a 20B in my RV-10. Can you send me details? Thanks, Bill Jepson WRJJRS@aol.com -----Original Message----- From: Mark R Steitle To: Rotary motors in aircraft Sent: Tue, 24 Jan 2006 07:20:36 -0600 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 ----------MailBlocks_8C7EF2F1CAEF676_A30_1F55E_FWM-D35.sysops.aol.com Content-Type: text/html; charset="us-ascii"

Mark,

I would be very interested as I'm running a 20B in my RV-10. Can you send me details?

Thanks, Bill Jepson WRJJRS@aol.com

-----Original Message-----
From: Mark R Steitle <mark.steitle@austin.utexas.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 24 Jan 2006 07:20:36 -0600
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

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