X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 07 Jun 2008 15:09:45 -0400 Message-ID: X-Original-Return-Path: Received: from mta21.charter.net ([216.33.127.81] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2956935 for lml@lancaironline.net; Fri, 06 Jun 2008 19:00:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.81; envelope-from=GAMarr@Charter.Net Received: from aarprv06.charter.net ([10.20.200.76]) by mta21.charter.net (InterMail vM.7.08.03.00 201-2186-126-20070710) with ESMTP id <20080606230007.FZQT23078.mta21.charter.net@aarprv06.charter.net> for ; Fri, 6 Jun 2008 19:00:07 -0400 Received: from DB77R351 ([24.178.5.47]) by aarprv06.charter.net with ESMTP id <20080606230006.IAQA3194.aarprv06.charter.net@DB77R351> for ; Fri, 6 Jun 2008 19:00:06 -0400 From: "Giffen Marr" X-Original-To: References: Subject: Re: Selecting an EFIS X-Original-Date: Fri, 6 Jun 2008 17:59:05 -0500 X-Original-Message-ID: <00dd01c8c828$ebc23700$6401a8c0@DB77R351> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DE_01C8C7FF.02EC2F00" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcjH4tAcIqpAsfcdTsSqBLMrDjhWBwAQT68g X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 In-Reply-To: X-Chzlrs: 0 This is a multi-part message in MIME format. ------=_NextPart_000_00DE_01C8C7FF.02EC2F00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I have to agree with Bruce. I went through several iterations to arrive at my final decision. I had some excellent input from experienced owners on this list. The first was a full size (primary) EFIS and smaller backup, produced by the same manufacturer. What a great way to save money and panel space. However, after analysis, this left me exposed to the potential for dual failure if there was an error in the software. Well, that was easy enough to fix, use different manufacturers. After some additional input from highly experienced owners who had or were flying some full qualified equipment, I realized that in the event of a lightning strike, I would probably fry both units. I bit the bullet and purchased a set of mechanical backup instruments with dedicated battery backup. It was more expensive then I wanted, the panel was more cluttered, but it provided the piece of mind I wanted for my family. Do I plan on flying IFR, at times, do I plan on getting into storms with lightning, absolutely not, but some times we are not the masters of our own destiny. Giff Marr LIV-P/Mistral 70% _____ From: Bruce Gray [mailto:Bruce@glasair.org] Sent: Thursday, June 05, 2008 8:36 PM To: lml@lancaironline.net Subject: RE: [LML] Re: Selecting an EFIS While I'm sure some will call me a Ludite or a fool, I'd go with a vacuum Attitude gyro. If all your flight instruments are going to be powered by electo-wizzies, I'd want a separate system as a backup. You also need a ASI and altimeter. Bruce www.Glasair.org -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John Hafen Sent: Thursday, June 05, 2008 9:32 AM To: lml@lancaironline.net Subject: [LML] Re: Selecting an EFIS Are any of you aware of an independent, stand-alone, self powered attitude back-up system? I was looking at the Garmin 495. Its panel page shows heading, bank angle, and vertical speed. So I assume with a little concentration, that would allow a guy to approximate straight and level flight. But there is no "attitude indicator." Is there something out there better than the 495? John Hafen ------=_NextPart_000_00DE_01C8C7FF.02EC2F00 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I have to agree with Bruce. I went = through several iterations to arrive at my final decision. I had some excellent = input from experienced owners on this list. The first was a full size = (primary) EFIS and smaller backup, produced by the same manufacturer. What a great way = to save money and panel space. However, after analysis, this left me exposed to = the potential for dual failure if there was an error in the software. Well, = that was easy enough to fix, use different manufacturers. After some = additional input from highly experienced owners who had or were flying some full = qualified equipment, I realized that in the event of a lightning strike, I would = probably fry both units. I bit the bullet and purchased a set of mechanical = backup instruments with dedicated battery backup. It was more expensive then I = wanted, the panel was more cluttered, but it provided the piece of mind I wanted = for my family. Do I plan on flying IFR, at times, do I plan on getting into = storms with lightning, absolutely not, but some times we are not the masters of = our own destiny.

Giff = Marr

LIV-P/Mistral = 70%

 

From: Bruce = Gray [mailto:Bruce@glasair.org]
Sent: Thursday, June 05, = 2008 8:36 PM
To: = lml@lancaironline.net
Subject: RE: [LML] Re: = Selecting an EFIS

 

While I'm sure some will call me a = Ludite or a fool, I'd go with a vacuum Attitude gyro. If all your flight = instruments are going to be powered by electo-wizzies, I'd want a separate system as = a backup. You also need a ASI and altimeter.

 

 

Bruce

www.Glasair.org<= /span>

 

-----Original = Message-----
From: Lancair Mailing = List [mailto:lml@lancaironline.net] On = Behalf Of John Hafen
Sent: Thursday, June 05, = 2008 9:32 AM
To: = lml@lancaironline.net
Subject: [LML] Re: = Selecting an EFIS


Are any of you aware of an independent, stand-alone, self powered = attitude back-up system?

I was looking at the Garmin 495.  Its panel page shows heading, = bank angle, and vertical speed.  So I assume with a little = concentration, that would allow a guy to approximate straight and level flight.  But = there is no “attitude indicator.”

Is there something out there better than the 495?

John Hafen

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