X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 18 Dec 2007 17:10:11 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-scoter.atl.sa.earthlink.net ([209.86.89.67] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2602892 for lml@lancaironline.net; Mon, 17 Dec 2007 21:17:46 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.67; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=HtzLAcOA0xi5Ogd1B7gqDRwryNLLtV0QwFCO0E7uxV+MBFRsENddleSwcyGL9Ex2; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.89] (helo=ccaselt2) by elasmtp-scoter.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1J4S15-0001r5-Nf for lml@lancaironline.net; Mon, 17 Dec 2007 21:17:08 -0500 X-Original-Message-ID: <00fb01c8411c$15e83b90$0402a8c0@nvidia.com> From: "Colyn Case on earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Need Wing Deice X-Original-Date: Mon, 17 Dec 2007 18:17:04 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F8_01C840D9.07018480" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940e7036ea67a4233c8890b27cd1441a3b6350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.89 This is a multi-part message in MIME format. ------=_NextPart_000_00F8_01C840D9.07018480 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Robert said, but this wet wing seems to have a few more limitations.=20 The record of tks installations at large does not support that statement = whatsoever. =20 I haven't talked to a single TKS owner that wasn't ecstatic about the = performance, especially as compared to boots. If therma-wing turns out to be a better system (which I hope it does) it = cannot be denied at this point that there are far more TKS installations, decades of experience with a wide variety of = icing conditions, and many very happy owners. I don't know what happened with the cirrus but it has not been shown = that the tks system was operating on that flight. It was about an hour trip anyway. If I had launched, and I doubt I = would have launched in those conditions without a turbo, the tks would have been on before my wheels left the pavement. Realistically the possible failure modes for a known ice tks system are: a) the pilot forgets to turn it on. b) both pumps fail c) both batteries fail d) the pilot forgets to fill the tank. The possible failure modes for therma-wing are: a) the engine quits b) the big alternator dies c) one of the controllers dies (Northcoast redesigned that box multiple = times) d) one of the panels develops a connectivity problem e) something we haven't discovered yet about therma-wing ------=_NextPart_000_00F8_01C840D9.07018480 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Robert said,
but this wet wing seems to have a few more=20 limitations. 
 
 
The record of tks installations at large does not support that = statement=20 whatsoever. 
I haven't talked to a single TKS owner that wasn't ecstatic about = the=20 performance, especially as compared to boots.
If therma-wing turns out to be a better system (which I hope it = does) it=20 cannot be denied at this point that there are
far more TKS installations, decades of experience with a wide = variety of=20 icing conditions, and many very happy owners.
I don't know what happened with the cirrus but it has not been = shown that=20 the tks system was operating on that flight.
It was about an hour trip anyway.  If I had launched, and I = doubt I=20 would have launched in those conditions without a turbo,
the tks would have been on before my wheels left the = pavement.
 
Realistically the possible failure modes for a known ice tks system = are:
a) the pilot forgets to turn it on.
b) both pumps fail
c) both batteries fail
d) the pilot forgets to fill the tank.
 
The possible failure modes for therma-wing are:
a) the engine quits
b) the big alternator dies
c) one of the controllers dies  (Northcoast redesigned that = box=20 multiple times)
d) one of the panels develops a connectivity problem
e) something we haven't discovered yet about therma-wing
 
 
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