X-Virus-Scanned: clean according to Sophos on Logan.com From: "Steven W. Boese" Received: from [207.46.163.239] (HELO na01-by2-obe.outbound.protection.outlook.com) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6985062 for flyrotary@lancaironline.net; Fri, 18 Jul 2014 13:00:44 -0400 Received-SPF: none receiver=logan.com; client-ip=207.46.163.239; envelope-from=SBoese@uwyo.edu Received: from BL2PR05MB097.namprd05.prod.outlook.com (10.255.232.11) by BL2PR05MB244.namprd05.prod.outlook.com (10.242.198.152) with Microsoft SMTP Server (TLS) id 15.0.974.11; Fri, 18 Jul 2014 17:00:07 +0000 Received: from BL2PR05MB098.namprd05.prod.outlook.com (10.255.232.15) by BL2PR05MB097.namprd05.prod.outlook.com (10.255.232.11) with Microsoft SMTP Server (TLS) id 15.0.990.7; Fri, 18 Jul 2014 17:00:05 +0000 Received: from BL2PR05MB098.namprd05.prod.outlook.com ([169.254.2.78]) by BL2PR05MB098.namprd05.prod.outlook.com ([169.254.2.202]) with mapi id 15.00.0990.007; Fri, 18 Jul 2014 17:00:05 +0000 To: Rotary motors in aircraft Subject: coil power distribution Thread-Topic: coil power distribution Thread-Index: AQHPoqmgzgzwpqjmdk6vRMCp0i28cA== Date: Fri, 18 Jul 2014 17:00:04 +0000 Message-ID: <1405702805023.35923@uwyo.edu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [70.196.192.174] x-microsoft-antispam: BCL:0;PCL:0;RULEID: x-forefront-prvs: 02760F0D1C x-forefront-antispam-report: SFV:NSPM;SFS:(6009001)(199002)(189002)(75432001)(36756003)(86362001)(106116001)(46102001)(4396001)(105586002)(74662001)(19625215002)(107886001)(107046002)(101416001)(76482001)(74502001)(106356001)(99286002)(229853001)(83322001)(77982001)(54356999)(50986999)(95666004)(99396002)(66066001)(31966008)(87936001)(89122001)(81542001)(88552001)(79102001)(64706001)(16236675004)(21056001)(2656002)(85306003)(19627405001)(92726001)(77096002)(80022001)(20776003)(92566001)(110136001)(81342001)(85852003)(83072002)(133083001)(80792004);DIR:OUT;SFP:;SCL:1;SRVR:BL2PR05MB097;H:BL2PR05MB098.namprd05.prod.outlook.com;FPR:;MLV:sfv;PTR:InfoNoRecords;MX:1;LANG:en; Content-Type: multipart/alternative; boundary="_000_140570280502335923uwyoedu_" MIME-Version: 1.0 Return-Path: SBoese@uwyo.edu X-Microsoft-Antispam: BCL:0;PCL:0;RULEID: X-OriginatorOrg: uwyo.edu --_000_140570280502335923uwyoedu_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jeff, It may be worth considering connecting the coils such that opening a fuse o= nly affects one coil of each rotor. Loosing either the trailing or leading= coils has a noticeable but minimal effect on the engine as demonstrated by= executing the coil test available when running on the B controller. That = is certainly not as serious as completely loosing one of the rotors. The w= iring scheme you show makes this very easy to check out for yourself. Steve Boese RV6A, 1986 13B NA, RD1A, EC2 --_000_140570280502335923uwyoedu_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Jeff,

 

It may be worth considering connecting the coils such that opening a fus= e only affects one coil of each rotor.  Loosing either the trailing or= leading coils has a noticeable but minimal effect on the engine = as demonstrated by executing the coil test available when running on the B controller.  That is certainly not as serious a= s completely loosing one of the rotors.  The wiring scheme you sh= ow makes this very easy to check out for yourself.

Steve Boese
RV6A, 1986 13B NA, RD1A, EC2

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