X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.211.128.10] (HELO mail-in04.adhost.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1062888 for flyrotary@lancaironline.net; Sun, 09 Apr 2006 00:37:39 -0400 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=joeh@pilgrimtech.com Received: from Pilgrim10 (c-67-183-14-47.hsd1.wa.comcast.net [67.183.14.47]) by mail-in04.adhost.com (Postfix) with ESMTP id C66BD10FFEC for ; Sat, 8 Apr 2006 21:37:41 -0700 (PDT) (envelope-from joeh@pilgrimtech.com) From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Radio Saga Beginning Date: Sat, 8 Apr 2006 21:36:52 -0700 Message-ID: <005c01c65b8f$396b6bb0$bb02a8c0@redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005D_01C65B54.8D0C93B0" X-Mailer: Microsoft Office Outlook 11 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 Thread-Index: AcZbS6SrGRRNHzXWSVCH002pOstZMAAQ2d2g This is a multi-part message in MIME format. ------=_NextPart_000_005D_01C65B54.8D0C93B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Nope not the Alternator. That's the first thing I thought of so I took the alternator belt off and ran the engine - same noise. Joe Hull Cozy Mk-IV #991 (Done Building! In Phase1 Flight Test - 0 hrs flown) Redmond (Seattle), Washington _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dale Rogers Sent: Saturday, April 08, 2006 1:32 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Radio Saga Beginning Joe Hull wrote: ... However, remember it is only when the engine is running - and also remember that in a Cozy that bad boy is 8 feet from the instrument panel. So, since it's only there when the mic is keyed it has to be something that gets energized on the PTT ground wire or on Mic cable only when the engine is going. Ah, and what else is running when the engine is? Alternator, for one. Does the noise fall off proportional to engine speed, if you kill the engine while transmitting? Dale R. COZY MkIV #1254 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_005D_01C65B54.8D0C93B0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Nope not the Alternator. = That’s the first thing I thought of so I took the alternator belt off and ran the = engine – same noise.

Joe Hull

Cozy Mk-IV #991 (Done Building! In Phase1 Flight Test - 0 hrs flown) =

Redmond (Seattle), Washington

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dale Rogers
Sent: Saturday, April 08, = 2006 1:32 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Radio Saga Beginning

Joe Hull wrote:

.= .. However, remember it is only when the engine is running – and also remember that in a Cozy that bad boy is 8 feet from the instrument = panel. So, since it’s only there when the mic is keyed it has to be = something that gets energized on the PTT ground wire or on Mic cable only when the = engine is going.

Ah, and what else is running when the engine is? = Alternator, for one. Does the noise
fall off proportional to engine speed, if you kill the engine while transmitting?

Dale R.
COZY MkIV #1254

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