Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 07 Feb 2005 00:15:05 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d22.mx.aol.com ([205.188.144.208] verified) by logan.com (CommuniGate Pro SMTP 4.2.9) with ESMTP id 710817 for lml@lancaironline.net; Sun, 06 Feb 2005 23:50:30 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.208; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d22.mx.aol.com (mail_out_v37_r3.8.) id q.15b.4a243878 (17377) for ; Sun, 6 Feb 2005 23:48:55 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <15b.4a243878.2f384d36@aol.com> X-Original-Date: Sun, 6 Feb 2005 23:48:54 EST Subject: Re: [LML] Re: Brain Lock X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1107751734" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1107751734 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/6/2005 6:20:15 P.M. Central Standard Time, farnsworth@charter.net writes: Turning on the autopilot, if available, would help a bit too. Yes, if the A/P was not on already whilst in the soup. However, a small caveat: It is very important that you know HOW things work. In my old Skymaster, the A/P was stabilized by the vacuum attitude indicator - If you lost vacuum or the attitude gyro, you also lost the autopilot. Well, not really lost as the A/P would adopt whatever attitude the attitude indicator would take. That is why I had an additional AI (electric) installed. In my wee Lancair, the S-Tec A/P is stabilized by the electric gyro in the turn coordinator and the accelerometer in the computer, independent of the vacuum AI gyro. If I lost the attitude indicator, the autopilot would certainly help keep the wings level. In systems such as the Chelton, Avidyne, et al, is there only 1 AHRS that is shared by the attitude displays and the autopilot? If so, one could not use the A/P as a backup. Of course, an independent A/P, like the Tru-Trak, uses its own internal electronic gyros for stabilization. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! There is an oxymoron in that, somewhere... -------------------------------1107751734 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 2/6/2005 6:20:15 P.M. Central Standard Time,=20 farnsworth@charter.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Turning=20 on the autopilot, if available, would help a bit=20 too.
Yes, if the A/P was not on already whilst in the soup.
 
However, a small caveat: It is very important that you know HOW things=20 work.
 
In my old Skymaster, the A/P was stabilized by the vacuum attitude=20 indicator - If you lost vacuum or the attitude gyro, you also lost the=20 autopilot.  Well, not really lost as the A/P would adopt whatever=20 attitude the attitude indicator would take.  That is why I had an=20 additional AI (electric) installed.
 
In my wee Lancair, the S-Tec A/P is stabilized by the electric=20 gyro in the turn coordinator and the accelerometer in the computer,=20 independent of the vacuum AI gyro.  If I lost the attitude indicator, t= he=20 autopilot would certainly help keep the wings level.
 
In systems such as the Chelton, Avidyne, et al, is there only 1 AHRS th= at=20 is shared by the attitude displays and the autopilot? If so, one could not u= se=20 the A/P as a backup.
 
Of course, an independent A/P, like the Tru-Trak, uses its own internal= =20 electronic gyros for stabilization.
 
 
 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
There is an oxymoron in that,=20 somewhere...

-------------------------------1107751734--