X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Fri, 15 Dec 2006 00:17:57 -0500 Message-ID: X-Original-Return-Path: Received: from mx3.pshift.com ([216.57.116.8] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTP id 1676208 for lml@lancaironline.net; Thu, 14 Dec 2006 21:54:32 -0500 Received-SPF: none receiver=logan.com; client-ip=216.57.116.8; envelope-from=colyncase@earthlink.net Received: from ccaselt (unverified [216.57.118.129]) by mx3.pshift.com (Vircom SMTPRS 4.35.480.0) with SMTP id for ; Thu, 14 Dec 2006 21:39:52 -0500 Received-SPF: none (mx3.pshift.com: domain of colyncase@earthlink.net does not designate any permitted senders) X-Modus-BlackList: 216.57.118.129=OK;colyncase@earthlink.net=OK X-Modus-RBL: 216.57.118.129=Excluded X-Modus-Trusted: 216.57.118.129=NO X-Original-Message-ID: <012501c71ff2$49bf02b0$0302a8c0@nvidia.com> From: "colyncase on earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Prop De-ice Failure Warning X-Original-Date: Thu, 14 Dec 2006 18:39:47 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0122_01C71FAF.3B292AC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_0122_01C71FAF.3B292AC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'd be interested in the answer when you figure it out. Are you just going with a hot prop or are you going to try the = thermawing? ----- Original Message -----=20 From: Craig Berland=20 To: lml=20 Sent: Thursday, December 14, 2006 2:49 PM Subject: [LML] Prop De-ice Failure Warning I have a 4 blade MT prop with de-ice boots on my IV-P. I have not = confirmed the current draw but for this discussion lets say each boot = pulls 5 amps at 24 volts. So if all 4 blades were on and working, the = total current draw would be 20 amps. I would like to obtain an = electronic device that would measure the current draw and trigger a = warning light and thus a voice warning in my Master Warning System = Display if the de-ice switch was on and the current draw was less than = 18 amps. The goal is to prevent one blade from tuning into a frozen = stump and causing a big prop imbalance. Please help this electronically = challenged mechanical engineer. Craig Berland ------=_NextPart_000_0122_01C71FAF.3B292AC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I'd be interested in the answer when = you figure it=20 out.
 
Are you just going with a hot prop or = are you going=20 to try the thermawing?
----- Original Message -----
From:=20 Craig=20 Berland
To: lml
Sent: Thursday, December 14, = 2006 2:49=20 PM
Subject: [LML] Prop De-ice = Failure=20 Warning

I = have a 4 blade=20 MT prop with de-ice boots on my IV-P.  I have not confirmed the = current=20 draw but for this discussion lets say each boot pulls 5 amps at 24=20 volts.  So if all 4 blades were on and working, the total current = draw=20 would be 20 amps.  I would like to obtain an electronic device = that=20 would measure the current draw and trigger a warning light = and thus=20 a voice warning in my Master Warning System Display if the de-ice = switch=20 was on and the current draw was less than 18 amps.  The goal is = to=20 prevent one blade from tuning into a frozen stump and causing a big = prop=20 imbalance.  Please help this electronically challenged mechanical = engineer.
Craig=20 Berland
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