X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 15 Jul 2013 12:37:02 -0400 Message-ID: X-Original-Return-Path: Received: from mail-ie0-f181.google.com ([209.85.223.181] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6373914 for lml@lancaironline.net; Mon, 15 Jul 2013 12:35:15 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.223.181; envelope-from=toddlong1@gmail.com Received: by mail-ie0-f181.google.com with SMTP id x12so26676788ief.12 for ; Mon, 15 Jul 2013 09:34:40 -0700 (PDT) X-Received: by 10.50.128.36 with SMTP id nl4mr7564337igb.38.1373906079999; Mon, 15 Jul 2013 09:34:39 -0700 (PDT) X-Original-Return-Path: Received: from [10.4.178.207] (mobile-198-228-235-152.mycingular.net. [198.228.235.152]) by mx.google.com with ESMTPSA id nm17sm19066745igb.5.2013.07.15.09.34.38 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 15 Jul 2013 09:34:39 -0700 (PDT) References: Mime-Version: 1.0 (1.0) In-Reply-To: Content-Type: multipart/alternative; boundary=Apple-Mail-4DD1F062-9FF3-4573-98B4-3E18673DD9A3 Content-Transfer-Encoding: 7bit X-Original-Message-Id: <7133ADCA-94A9-4575-8949-C4A32ECA0420@gmail.com> X-Original-Cc: "lml@lancaironline.net" X-Mailer: iPad Mail (10B329) From: Todd Long Subject: Re: [LML] Re: AFS Pilot X-Original-Date: Mon, 15 Jul 2013 11:34:36 -0500 X-Original-To: Lancair Mailing List --Apple-Mail-4DD1F062-9FF3-4573-98B4-3E18673DD9A3 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable How does the autopilot handle during turbulence, or right after the random b= ump? Sent from my iPad On Jul 15, 2013, at 10:30, Bob Rickard wrote: > Todd, et.al., >=20 > I have had lots of servo issues with my IV, but solved them with settings a= nd a screw - explanation below. >=20 > The "micro activity" setting is key for getting rid of the hunting in the r= oll axis (in my airplane). With the torque set at its maximum (255) for bot= h roll and pitch, and the "activity" for each set at around 6-7, its a very g= ood 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 every= thing, 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 FU= BAR. Adjusting this along with the torque got me back into the happy place.= =20 >=20 > As for the screw - there is a shear pin that is designed to break if the t= orque on the servo is too high, presumably to not let the autopilot over con= trol or fight emergency pilot input. The bad news is that this pin was not d= esigned 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 fi= x was a great idea by my mechanic to replace this shear pin with a steel scr= ew, essentially locking the servo to the controls. I deem this safe because= there are still 4 other ways to disable the autopilot (stick button, contro= l 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 ar= e on the subject. >=20 > Hope this helps >=20 > Bob R > N619SJ >=20 >=20 >=20 > On Jul 15, 2013, at 6:55 AM, Bill Harrelson wrote: >=20 >> Todd, >>=20 >> I've tried pretty much every combination of settings with the TT autopilo= t on our IV. It hunted with the standard servos so I spent a grand upgradin= g and now it hunts with the high torque servos. Haven't been all that impres= sed 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 serv= os 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 t= o 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.ht= ml=20 >>=20 >> -- >> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.ht= ml >=20 > >=20 > Bob Rickard > President, Rickard Consulting Group, Inc. > r.rickard@rcginc-us.com >=20 >=20 >=20 --Apple-Mail-4DD1F062-9FF3-4573-98B4-3E18673DD9A3 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
How does the autopilot handle during t= urbulence, or right after the random bump?

Sent from my iPad

On Jul 15, 2013, at 10:30, Bob Rickard <r.rickard@rcginc-us.com> wrote:

Todd, et.al.,

I have had lots of s= ervo issues with my IV, but solved them with settings and a screw - explanat= ion below.

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

As for the screw - there is a shear pin that is designed to b= reak if the torque on the servo is too high, presumably to not let the autop= ilot 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 t= his pin several times in both roll and pitch, just by letting the autopilot f= ly an approach.  The fix was a great idea by my mechanic to replace thi= s shear pin with a steel screw, essentially locking the servo to the control= s.  I deem this safe because there are still 4 other ways to disable th= e autopilot (stick button, control head power, on/off switch on the panel, a= nd circuit breaker).  I wanted to throw that out for others who might b= e having this same problem since we are on the subject.

=
Hope this helps

Bob R
N619SJ



On Jul 15, 2013, at 6:55 AM, B= ill Harrelson <n5zq@verizon.net&g= t; wrote:

Todd,

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

Bill Harrelson
N5ZQ 320 2,1= 50 hrs
N6ZQ  IV  300 hrs





-----Original M= essage----- From: Todd Long
Sent: Saturday, July 13, 2013 1:22 PM
To: <= a href=3D"mailto:lml@lancaironline.net">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 highe= r torque servos on the ailerons at high speed cruise?what settings do you ha= ve 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/lm= l/List.html

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<RCG Logo for Email.jpg>

Bob Rickard
President, Rickard C= onsulting Group, Inc.


=

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