X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 15 Jul 2013 11:30:38 -0400 Message-ID: X-Original-Return-Path: Received: from [208.113.200.5] (HELO homiemail-a80.g.dreamhost.com) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6373669 for lml@lancaironline.net; Mon, 15 Jul 2013 10:45:19 -0400 Received-SPF: none receiver=logan.com; client-ip=208.113.200.5; envelope-from=r.rickard@rcginc-us.com Received: from homiemail-a80.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a80.g.dreamhost.com (Postfix) with ESMTP id 4B97C37A078 for ; Mon, 15 Jul 2013 07:44:44 -0700 (PDT) Received: from [192.168.1.24] (24-107-103-44.dhcp.stls.mo.charter.com [24.107.103.44]) (Authenticated sender: r.rickard@rcginc-us.com) by homiemail-a80.g.dreamhost.com (Postfix) with ESMTPA id 0078437A06B for ; Mon, 15 Jul 2013 07:44:43 -0700 (PDT) From: Bob Rickard Content-Type: multipart/alternative; boundary="Apple-Mail=_BF52282E-A465-41B3-B078-439E7F4CCA3C" X-Original-Message-Id: Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: [LML] AFS Pilot X-Original-Date: Mon, 15 Jul 2013 09:44:43 -0500 References: X-Original-To: "Lancair Mailing List" In-Reply-To: X-Mailer: Apple Mail (2.1508) --Apple-Mail=_BF52282E-A465-41B3-B078-439E7F4CCA3C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 Todd, et.al., I have had lots of servo issues with my IV, but solved them with = settings and a screw - explanation below. The "micro activity" setting is key for getting rid of the hunting in = the roll axis (in my airplane). With the torque set at its maximum = (255) for both roll and pitch, and the "activity" for each set at around = 6-7, its a very good balance between being harsh and hunting all of the = time. I recently had a servo refurbished and when the install was = complete all of these settings were off, and I had to adjust them back. = But when the mechanic reset everything, he also changed the micro = activity setting to either zero or the max (can't remember). It hunted = in roll very annoyingly, and I thought it was FUBAR. Adjusting this = along with the torque got me back into the happy place. =20 As for the screw - there is a shear pin that is designed to break if the = torque on the servo is too high, presumably to not let the autopilot = over control or fight emergency pilot input. The bad news is that this = pin was not designed for the high loads in a IV. I have broken this pin = several times in both roll and pitch, just by letting the autopilot fly = an approach. The fix was a great idea by my mechanic to replace this = shear pin with a steel screw, essentially locking the servo to the = controls. I deem this safe because there are still 4 other ways to = disable the autopilot (stick button, control head power, on/off switch = on the panel, and circuit breaker). I wanted to throw that out for = others who might be having this same problem since we are on the = subject. Hope this helps Bob R N619SJ On Jul 15, 2013, at 6:55 AM, Bill Harrelson wrote: > Todd, >=20 > I've tried pretty much every combination of settings with the TT = autopilot on our IV. It hunted with the standard servos so I spent a = grand upgrading and now it hunts with the high torque servos. Haven't = been all that impressed with TT so far. >=20 > Bill Harrelson > N5ZQ 320 2,150 hrs > N6ZQ IV 300 hrs >=20 >=20 >=20 >=20 >=20 > -----Original Message----- From: Todd Long > Sent: Saturday, July 13, 2013 1:22 PM > To: lml@lancaironline.net > Subject: [LML] AFS Pilot >=20 > How many people are flying a IV-P with the tru trak AFS Pilot? Which = servos do you have installed? I. Thinking I need the higher torque = servos on the ailerons at high speed cruise?what settings do you have it = at? I'm trying to dial mine in and get rid of the hunting. >=20 > Sent from my iPad > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html=20 >=20 > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html Bob Rickard President, Rickard Consulting Group, Inc. r.rickard@rcginc-us.com --Apple-Mail=_BF52282E-A465-41B3-B078-439E7F4CCA3C Content-Type: multipart/related; type="text/html"; boundary="Apple-Mail=_A25C8020-EAED-4F46-8FA1-DC67D2DC77AC" --Apple-Mail=_A25C8020-EAED-4F46-8FA1-DC67D2DC77AC Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=iso-8859-1 Todd, = et.al.,

I have had lots of servo issues with my IV, = but solved them with settings and a screw - explanation = below.

The "micro activity" setting is key for = getting rid of the hunting in the roll axis (in my airplane).  With = the torque set at its maximum (255) for both roll and pitch, and the = "activity" for each set at around 6-7, its a very good balance between = being harsh and hunting all of the time.  I recently had a servo = refurbished and when the install was complete all of these settings were = off, and I had to adjust them back.  But when the mechanic reset = everything, he also changed the micro activity setting to either zero or = the max (can't remember).  It hunted in roll very annoyingly, and I = thought it was FUBAR.  Adjusting this along with the torque got me = back into the happy place.  

As for the = screw - there is a shear pin that is designed to break if the torque on = the servo is too high, presumably to not let the autopilot over control = or fight emergency pilot input.  The bad news is that this pin was = not designed for the high loads in a IV.  I have broken this pin = several times in both roll and pitch, just by letting the autopilot fly = an approach.  The fix was a great idea by my mechanic to replace = this shear pin with a steel screw, essentially locking the servo to the = controls.  I deem this safe because there are still 4 other ways to = disable the autopilot (stick button, control head power, on/off switch = on the panel, and circuit breaker).  I wanted to throw that out for = others who might be having this same problem since we are on the = subject.

Hope this = helps

Bob = R
N619SJ



O= n Jul 15, 2013, at 6:55 AM, Bill Harrelson <n5zq@verizon.net> = wrote:

Todd,

I've tried pretty much every combination of = settings with the TT autopilot on our IV.  It hunted with the = standard servos so I spent a grand upgrading and now it hunts with the = high torque servos. Haven't been all that impressed with TT so = far.

Bill Harrelson
N5ZQ 320 2,150 hrs
N6ZQ  IV =  300 hrs





-----Original Message----- From: = Todd Long
Sent: Saturday, July 13, 2013 1:22 PM
To: lml@lancaironline.net
Subject= : [LML] AFS Pilot

How many people are flying a IV-P with the tru = trak AFS Pilot? Which servos do you have installed? I. Thinking I need = the higher torque servos on the ailerons at high speed cruise?what = settings do you have it at? I'm trying to dial mine in and get rid of = the hunting.

Sent from my iPad
--
For archives and unsub http://mail.= lancaironline.net:81/lists/lml/List.html

--
For archives = and unsub http://mail.= lancaironline.net:81/lists/lml/List.html


Bob Rickard
President, = Rickard Consulting Group, Inc.
<= br class=3D"Apple-interchange-newline">

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