X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 04 Sep 2009 20:49:59 -0400 Message-ID: X-Original-Return-Path: Received: from QMTA04.emeryville.ca.mail.comcast.net ([76.96.30.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3836969 for lml@lancaironline.net; Fri, 04 Sep 2009 17:48:49 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.40; envelope-from=j.hafen@comcast.net Received: from OMTA06.emeryville.ca.mail.comcast.net ([76.96.30.51]) by QMTA04.emeryville.ca.mail.comcast.net with comcast id ccgg1c00216AWCUA4loGPP; Fri, 04 Sep 2009 21:48:16 +0000 Received: from [10.128.90.238] ([75.151.125.133]) by OMTA06.emeryville.ca.mail.comcast.net with comcast id cloF1c0012soXEK8SloFLH; Fri, 04 Sep 2009 21:48:15 +0000 User-Agent: Microsoft-Entourage/12.17.0.090302 X-Original-Date: Fri, 04 Sep 2009 14:48:13 -0700 Subject: Trutrak Sorcerer Autopilot Operating Question From: John Hafen X-Original-To: Lancair Mailing List X-Original-Message-ID: Thread-Topic: Trutrak Sorcerer Autopilot Operating Question Thread-Index: AcotqWa/wDuzbMiMREKyedjwrDfpPQ== Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3334920494_395126" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3334920494_395126 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Gents: In my IVP, I have a Trutrak Sorcerer Autopilot wired to a Chelton twin screen system. I shot a few GPS approaches today and everything seemed to work ok, except that the decent after the IAF seemed to lag behind the HITS green squares. The plane was going down, on the =B3glide slope=B2 but not as aggressively as i= t should have. Kind of hanging out near the top, or slightly above the green boxes. It was a GPS approach that I initiated by hitting the GPSV button o= n the Sorcerer. I know that altitude transitions can be made by airspeed, vertical speed, o= r horizontal distance (VNAV). So if my descent was lagging, I wonder if I need to go into Pitch Setup mode and play with the vertical activity or vertical torque. Or some other parameter. Or is there a way to specify a certain airspeed or V-speed for the descent = =8B or is it just supposed to center the boxes. I apologize for rambling a little here. I suppose my fundamental question is how to make the auto pilot fly the descent right in the middle of the green boxes...... What Am I Missing? Many thanks and Regards. John Hafen IVP N413AJ 175 hours --B_3334920494_395126 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Trutrak Sorcerer Autopilot Operating Question Gents:

In my IVP, I have a Trutrak Sorcerer Autopilot wired to a Chelton twin scre= en system.

I shot a few GPS approaches today and everything seemed to work ok, except = that the decent after the IAF seemed to lag behind the HITS green squares. &= nbsp;The plane was going down, on the “glide slope” but not as a= ggressively as it should have.  Kind of hanging out near the top, or sl= ightly above the green boxes.  It was a GPS approach that I initiated b= y hitting the GPSV button on the Sorcerer.

I know that altitude transitions can be made by airspeed, vertical speed, o= r horizontal distance (VNAV).  So if my descent was lagging, I wonder i= f I need to go into Pitch Setup mode and play with the vertical activity or = vertical torque.  Or some other parameter.

Or is there a way to specify a certain airspeed or V-speed for the descent = — or is it just supposed to center the boxes.

I apologize for rambling a little here.  I suppose my fundamental ques= tion is how to make the auto pilot fly the descent right in the middle of th= e green boxes......  What Am I Missing?  

Many thanks and Regards.

John Hafen
IVP N413AJ 175 hours --B_3334920494_395126--