X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: by logan.com (CommuniGate Pro PIPE 5.2.14) with PIPE id 3672650; Fri, 05 Jun 2009 07:48:10 -0400 X-WinmailDat: 1 attachments extracted. X-ExtScanner: Niversoft's Winmail.dat filter Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3672653 for flyrotary@lancaironline.net; Fri, 05 Jun 2009 07:47:36 -0400 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 <20090605114654447.SJYZ14139@cdptpa-omta02.mail.rr.com> for ; Fri, 5 Jun 2009 11:46:54 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: Ed's Electrical System was Incident 5119 Date: Fri, 5 Jun 2009 07:47:03 -0400 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0003_01C9E5B1.D1982130" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: Acnl01hFeVm6ePJkSqi2x2aBh4xwnA== X-MS-TNEF-Correlator: 00000000DC6625E6AA8BEC4FA6C322F06EACA27764016500 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090605114654447.SJYZ14139@cdptpa-omta02.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C9E5B1.D1982130 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Jim Maher was kind enough to convert the large DXF files of my electrical system to JPG so perhaps more of you can examine it. Recall I have removed the 2nd battery stuff - so ignore that on the diagrams. Also the diagram does not show any of the detailed EC2/injector/ignition wiring - follow Tracy's recommendations on that. As you will note there is no "isolation" diode between alternator and battery and also that the battery voltage holds the master relay closed. That is another change I must make. I must have decided (10+ years ago) that the battery would never fail - only the alternator. Clearly (now), without battery voltage (in my design) to hold the master relay closed - when the battery voltage fall to around 6-7 volts (in my case) the relay opens and all that good electrical power being produced by the perfectly good alternator - can not reach any part of the electrical system. Clearly NOT good as I could have continued to fly perfectly well with just the alternator juice. Your design is not going to be any better than the accuracy of your assumptions. Clearly some of my assumptions make 10 years ago definitely need revising. Ed The message is ready to be sent with the following file or link attachments: DIAG_3B.jpg DIAG_2B.jpg DIAG_1B.jpg Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments. Check your e-mail security settings to determine how attachments are handled. __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. ------=_NextPart_000_0003_01C9E5B1.D1982130--