X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [208.97.132.207] (HELO homiemail-a27.g.dreamhost.com) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5046891 for flyrotary@lancaironline.net; Sat, 09 Jul 2011 11:12:16 -0400 Received-SPF: none receiver=logan.com; client-ip=208.97.132.207; envelope-from=ryan@deadfrog.net Received: from homiemail-a27.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a27.g.dreamhost.com (Postfix) with ESMTP id 58408598060 for ; Sat, 9 Jul 2011 08:11:41 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=deadfrog.net; h=from:mime-version :content-type:subject:date:in-reply-to:to:references:message-id; q=dns; s=deadfrog.net; b=Ki0cbwtBkNdCdwCbZ0XXC+qW84uVtml6bBoOrC wuOb4DzH+b2+Duz+IThxV7/afGgAKeOF4G2Cu8PESjWMFGkkz9W4Dd2YMlGK2dyd Bl7YekaxMVCWoXp2rRqFwsjJN6yIjt0zPoBdhNPxlueq/1RScXDFMlAbpcPbq9M7 sr+VQ= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=deadfrog.net; h=from :mime-version:content-type:subject:date:in-reply-to:to :references:message-id; s=deadfrog.net; bh=tJjXBURkewqSwmNEgxfZP tyt7b0=; b=Tg613g8pbogOXp3SA3znOr0wOPlk3Z26sLtEtmYkGRhICkJU70GfZ DFQc06pYtBfzPpxb8Len7SFbcjlMJtQ1Pn0pWScI6yVP86OLDyJr4giHAzMDQgUh bQc+ld7L/pfYoF8gDH1+vf7sOfloNfi1ZcnWR6+VLnk1h4krycReEs= Received: from [192.168.1.145] (c-71-194-82-231.hsd1.il.comcast.net [71.194.82.231]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: ryan@deadfrog.net) by homiemail-a27.g.dreamhost.com (Postfix) with ESMTPSA id E5FC3598058 for ; Sat, 9 Jul 2011 08:11:40 -0700 (PDT) From: Ryan Wilkins Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-17--942866127 Subject: Re: [FlyRotary] Noise in headset when I turn the alternator on Date: Sat, 9 Jul 2011 10:11:39 -0500 In-Reply-To: To: "Rotary motors in aircraft" References: Message-Id: X-Mailer: Apple Mail (2.1084) --Apple-Mail-17--942866127 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Something to check might be the battery. I had issues on my car last = year with alternator whine that changed with engine speed getting into = the car radio and my amateur radio equipment. The car started fine and = didn't really exhibit any signs that it was going bad until a couple = months later where it was dead. I replaced the battery with a new one = and all the noise went away. I'm speaking without much knowledge of the rotary engine so I may be = completely out in left field here. Ryan Wilkins On Jul 9, 2011, at 9:16 AM, Bill Bradburry wrote: > This is not a big problem since I can not hear the hum when in flight, = but I thought someone might be able to tell me how to stop it. I have = the Renesis and I am using the stock capacitor that is attached to the = engine. When I turn on the alternator, there is a slight buzzing hum = that appears in the headset and the frequency goes up and down with the = engine. It is pretty obviously the alternator I think. > =20 > Does anyone have any suggestions? > =20 > Bill B --Apple-Mail-17--942866127 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Something to check might be the battery. I = had issues on my car last year with alternator whine that changed with = engine speed getting into the car radio and my amateur radio equipment. = The car started fine and didn't really exhibit any signs that it = was going bad until a couple months later where it was dead. I = replaced the battery with a new one and all the noise went = away.

I'm speaking without much knowledge of the = rotary engine so I may be completely out in left field = here.

Ryan = Wilkins

On Jul 9, 2011, at 9:16 AM, = Bill Bradburry wrote:

This is not a big problem = since I can not hear the hum when in flight, but I thought someone might = be able to tell me how to stop it. I have the Renesis and I am = using the stock capacitor that is attached to the engine. When I = turn on the alternator, there is a slight buzzing hum that appears in = the headset and the frequency goes up and down with the engine. It = is pretty obviously the alternator I = think.

Does anyone have any = suggestions?
Bill = B

= --Apple-Mail-17--942866127--