X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 26 Jan 2009 07:42:30 -0500 Message-ID: X-Original-Return-Path: Received: from smtp-auth-05.mx.pitdc1.expedient.net ([206.210.66.138] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTPS id 3452414 for lml@lancaironline.net; Mon, 26 Jan 2009 00:13:37 -0500 Received-SPF: none receiver=logan.com; client-ip=206.210.66.138; envelope-from=rpastusek@htii.com Received: from HTBOB001 (static-71-178-198-10.washdc.fios.verizon.net [71.178.198.10]) by smtp-auth-05.mx.pitdc1.expedient.net (Postfix) with ESMTPA id 7427AE4815 for ; Mon, 26 Jan 2009 00:13:01 -0500 (EST) From: "Robert Pastusek" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] DG X-Original-Date: Mon, 26 Jan 2009 00:12:57 -0500 X-Original-Message-ID: <00d701c97f74$c0c0e250$4242a6f0$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D8_01C97F4A.D7EADA50" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acl/CR3obkIcFdewQe+fErg5tLbfogAagNRA Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_00D8_01C97F4A.D7EADA50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dom Crain asks: Is there any way the azimuth output to the Tru Trak Digiflight autopilot can also be directed to the azimuth input terminal of the DG? Dom, Not a simple question, but the simple answer is "probably not." In general, Directional Gyros are just that.free running gyroscopes that maintain their relative position in space while the aircraft moves around them. Some more sophisticated units use magnetic heading, star tracker and other inputs to stabilize them over long periods of time, and the best DG's use various filtering systems to combine several of these to provide a heading output. These things almost have to be specifically engineered to work together; "plug and play" won't work here.in my opinion. If you have some specific objective in mind and want to write to me off-line, I'd be pleased to comment further. Bob Pastusek rpastusek@htii.com ------=_NextPart_000_00D8_01C97F4A.D7EADA50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dom Crain asks:

Is there any way = the azimuth output to the Tru Trak Digiflight autopilot can also be directed to the = azimuth input terminal of the DG?

Dom,

Not a simple question, but the simple answer is = “probably not.” In general, Directional Gyros are just that…free = running gyroscopes that maintain their relative position in space while the = aircraft moves around them. Some more sophisticated units use magnetic heading, = star tracker and other inputs to stabilize them over long periods of time, = and the best DG’s use various filtering systems to combine several of = these to provide a heading output. These things almost have to be specifically = engineered to work together; “plug and play” won’t work = here…in my opinion.

If you have some specific objective in mind and want to = write to me off-line, I’d be pleased to comment further. =

Bob Pastusek

rpastusek@htii.com

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