Return-Path: Received: from imo-m16.mx.aol.com ([64.12.138.206] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 757569 for flyrotary@lancaironline.net; Thu, 24 Feb 2005 13:04:40 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.206; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m16.mx.aol.com (mail_out_v37_r3.8.) id q.b9.524073f3 (15901) for ; Thu, 24 Feb 2005 13:03:45 -0500 (EST) Received: from aol.com (mow-m08.webmail.aol.com [64.12.184.136]) by air-id09.mx.aol.com (v104.18) with ESMTP id MAILINID94-3e1d421e1701268; Thu, 24 Feb 2005 13:03:45 -0500 Date: Thu, 24 Feb 2005 13:03:45 -0500 From: WRJJRS@aol.com To: flyrotary@lancaironline.net ("Rotary motors in aircraft") Subject: Re: [FlyRotary] Re: E-shaft permanent magnet alternator MIME-Version: 1.0 Message-ID: <37110A24.2FCB8675.00051B7E@aol.com> X-Mailer: Atlas Mailer 2.0 X-AOL-IP: 66.127.99.234 X-AOL-Language: english Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Is there any way to control the PM alternator? In other words, can you turn it off? Rusty, Yes you can turn it off. The simplest way is to unground the "tails" of the y winding in the stator. Alternately you can disconnect the winding leads to the rectifier diodes. Bill