X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from rwcrmhc13.comcast.net ([204.127.192.83] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTP id 1810950 for flyrotary@lancaironline.net; Sun, 04 Feb 2007 15:18:22 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.192.83; envelope-from=rlwhite@comcast.net Received: from quail.site (c-68-35-160-229.hsd1.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc13) with SMTP id <20070204201735m1300dmc5fe>; Sun, 4 Feb 2007 20:17:35 +0000 Date: Sun, 4 Feb 2007 13:19:06 -0700 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: wire routing Message-Id: <20070204131906.ac78773f.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed 2.4.0beta2 (GTK+ 2.8.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi Buly, If the capacitor doesn't help across the wires, you might try putting a capacitor from each wire to ground. What kind of noise was it? Hum, tone, static ????. Bob W. (I have to adjust my prop with a wrench.) On Sun, 4 Feb 2007 14:53:00 -0500 Bulent Aliev wrote: > Since you guys are on the electric noise page: > The other day I went for another short flight over the beach and again I > had a persistent study noise in my headset after takeoff. On the > ground with engine running it was fine. > It stopped for a moment when I pushed on the prop pitch adjustment > switch on the Ivo prop, than started again. I checked the brushes on > the prop and they are fine. it was suggested that the two floating > wires from the reversible prop switch to the brushes act as an > antenna. When I use the switch they get grounded? Installed a small > capacitor between the two wires, but had no chance to fly it again. > We are under a huge TFR for the Big Game. Did not have this problem > before. Maybe someone else had the same experience? > Thanks. > Buly > CZ MK-IV > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ -- N93BD - Rotary Powered BD-4 - http://www.bob-white.com First Flight: 11/23/2006 7:50AM - 1.7 Hours Total Time Cables for your rotary installation - http://www.roblinphoto.com/shop/