X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 29 May 2007 15:46:20 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-masked.atl.sa.earthlink.net ([209.86.89.68] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2073287 for lml@lancaironline.net; Tue, 29 May 2007 15:00:43 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.68; envelope-from=douglasbrunner@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=TimtLwkJQNjAsPJ7makX4aNUbeJ/0r6pZwZfEcOta8rUTcz0XDZQ/LSYqn/4uj6j; 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 [63.224.229.28] (helo=DFWK3391) by elasmtp-masked.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1Ht6vN-0007gl-Go for lml@lancaironline.net; Tue, 29 May 2007 15:00:05 -0400 X-Original-Message-ID: <002401c7a223$8f1bd730$0a02a8c0@DFWK3391> From: "Douglas Brunner" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Tru Trak ADI vs. Standard AI X-Original-Date: Tue, 29 May 2007 14:59:59 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01C7A202.0716FD90" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-ELNK-Trace: ad85a799c4f5de37c2eb1477c196d22294f5150ab1c16ac0c864d17e3813b99a2ab88911c06275ae1af44278895b654f350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 63.224.229.28 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01C7A202.0716FD90 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I think you are right, I don't trust myself to interpret the ADI = properly in an emergency situation when the VSI and the attitude = diverge. I want an attitude indicator that functions like a standard = AI. I have chosen an AI that is electric with a backup battery. My plane = has no vacuum system and I don't want to put one in. Even if I loose = all electric, I will still have Attitude (backup battery), Airspeed = (pitot/static), Altimeter (static) and Heading (compass). That should = be enough to get me home. Doug ----- Original Message -----=20 From: Micah Froese=20 To: lml@lancaironline.net=20 Sent: Tuesday, May 29, 2007 2:09 PM Subject: [LML] Re: Tru Trak ADI vs. Standard AI Douglas, A standard AI is what I choose as my back-up to my 2 screen Chelton = system. I used the TSO'ed Mid-Continent 4300 series and am very happy = with it. =20 My thinking was this, flying with EFIS's will be significantly = different than what I am used to and what I have been trained to fly. = EFIS failures are a rather common occurence, I don't know of anyone who = has flown for any significant amount of time in their EFIS experimental = who hasn't had a failure of some type. (reboots, lockups, sensor = errors, etc.) Therefore, my backup is not only significantly different = than primary, but it is also what I am comfortable using. =20 Chelton recommends pilots new to EFIS to get 40 hours of hood work = before launching into IFR weather. Do you want backup instruments that = also require new pilot training? =20 Micah Froese Lancair Legacy 150 hours=20 ------=_NextPart_000_0021_01C7A202.0716FD90 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I think you are right, I don't trust = myself to=20 interpret the ADI properly in an emergency situation when the VSI and = the=20 attitude diverge.  I want an attitude indicator that functions like = a=20 standard AI.
 
I have chosen an AI that is electric = with a backup=20 battery.  My plane has no vacuum system and I don't want to put one = in.  Even if I loose all electric, I will still have Attitude = (backup=20 battery), Airspeed (pitot/static), Altimeter (static) and Heading=20 (compass).  That should be enough to get me home.
 
Doug
----- Original Message -----
From:=20 Micah = Froese=20
Sent: Tuesday, May 29, 2007 = 2:09 PM
Subject: [LML] Re: Tru Trak ADI = vs.=20 Standard AI

Douglas,

A standard AI is what I choose as my = back-up to=20 my 2 screen Chelton system.  I used the TSO'ed Mid-Continent 4300 = series=20 and am very happy with it. 

My thinking was this, flying = with=20 EFIS's will be significantly different than what I am used to and what = I have=20 been trained to fly.  EFIS failures are a rather common = occurence, I=20 don't know of anyone who has flown for any significant amount of time = in their=20 EFIS experimental who hasn't had a failure of some type.  = (reboots,=20 lockups, sensor errors, etc.)  Therefore, my backup is not only=20 significantly different than primary, but it is also what I am = comfortable=20 using. 

Chelton recommends pilots new to EFIS to get 40 = hours of=20 hood work before launching into IFR weather.  Do you want backup=20 instruments that also require new pilot training? 

Micah=20 Froese
Lancair Legacy
150 hours
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