X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-mealy.atl.sa.earthlink.net ([209.86.89.69] verified) by logan.com (CommuniGate Pro SMTP 6.0.4) with ESMTP id 6173278 for lml@lancaironline.net; Sun, 31 Mar 2013 19:37:19 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.69; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=rgekHRSMF4v7IXbqI6q9GlterorclhqJH0VMKGa5I8fdo2N/O0nNWIO7aYpwmf11; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [71.161.208.71] (helo=[192.168.1.24]) by elasmtp-mealy.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1UMRnn-0002dS-QU for lml@lancaironline.net; Sun, 31 Mar 2013 19:36:44 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-55--81253264 Subject: Re: [LML] Re: Elevator trim control Date: Sun, 31 Mar 2013 19:36:43 -0400 In-Reply-To: To: "Lancair Mailing List" References: Message-Id: X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da94028edf272a011e6184bad4ed9531a0319350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.161.208.71 --Apple-Mail-55--81253264 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 A couple notes about that Tru-trak auto trim. The auto-trim box is intalled somewhere between your manual trim = switches and the servo. When you turn the auto-trim on, you are energizing relays which wholly = disconnect your manual switches and connect the servos to the auto-pilot = trim logic. Were you to have a problem with that, you would hope to = de-energize the relays, and hope the springs will pull the contacts back = to the manual trim side. If you install safety-trim with auto-trim you need to think that through = thoroughly or you won't get the safety feature you were hoping for. I = think I looked at it and concluded there wasn't a reasonable way to = install safety-trim so that it would protect you against the auto-trim. ...more reason to make sure you limit your trim authority to what you = can manually overcome. On Mar 29, 2013, at 10:00 AM, Gary Weeks wrote: Angier, Yes I have the Ray Allen trim system and speed control for the exact = reason you have stated. I also have not had a problem with any of my Ray = Allen gear, it is bullet proof. With the speed control installed I have almost halved my trim rate which = seems to work very well in the Legacy. I agree with John's comments re the TruTrak auto pitch trim, works = beautifully. Regards Gary Weeks Legacy VH-ZYA Sent from my iPad On 29/03/2013, at 4:58 AM, John Smith wrote: > Ray Allen speed control works fine =96 never had an issue. >=20 > Obviously not designed to do quite the same thing as directly control = the rate of trim servo movement, but auto-pitch control is a good device = =96 I have the Trutrak auto-pitch and that does a great job =96 never = have to retrim in climb, cruise or descent (A/P needs to be on though = for this to work). So, disengaging the A/P means you take over with the = aircraft nicely in trim. >=20 >=20 >=20 > Regards, >=20 > John > Legacy VH-XTZ >=20 > John N G Smith > Tel / fax: +61-8-9385-8891 > Mobile: +61-409-372-975 > Email: john@jjts.net.au >=20 >=20 > From: "Greenbacks, UnLtd." > Reply-To: Lancair Mailing List > Date: Thursday, 28 March 2013 10:07 PM > To: Lancair Mailing List > Subject: [LML] Re: Elevator trim control >=20 > My elevator trim on at pattern speeds works well but is way too = sensitive > at high speed. Ray Allen makes a speed control and I'm curious to know = if any of you > have tried it. Any other solutions out there? >=20 > Angier Ames > N4ZQ > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html >=20 --Apple-Mail-55--81253264 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 A = couple notes about that Tru-trak auto trim.
The auto-trim box is = intalled somewhere between your manual trim switches and the = servo.
When you turn the auto-trim on, you are energizing = relays which wholly disconnect your manual switches and connect the = servos to the auto-pilot trim logic.   Were you to have a problem = with that, you would hope to de-energize the relays, and hope the = springs will pull the contacts back to the manual trim = side.

If you install safety-trim with auto-trim = you need to think that through thoroughly or you won't get the safety = feature you were hoping for.   I think I looked at it and concluded = there wasn't a reasonable way to install safety-trim so that it would = protect you against the auto-trim.

...more = reason to make sure you limit your trim authority to what you can = manually overcome.

On Mar 29, 2013, at 10:00 AM, = Gary Weeks wrote:

Angier,

Yes I have the Ray = Allen trim system and speed control for the exact reason you have = stated. I also have not had a problem with any of my Ray Allen gear, it = is bullet proof.

With the speed control = installed I have almost halved my trim rate which seems to work very = well in the Legacy.

I agree with John's = comments re the TruTrak auto pitch trim, works = beautifully.

Regards

Gar= y Weeks

Legacy = VH-ZYA




Sent from my = iPad

On 29/03/2013, at 4:58 AM, John Smith <john@jjts.net.au> = wrote:

Ray = Allen speed control works fine =96 never had an = issue.

Obviously not designed to do quite the = same thing as directly control the rate of trim servo movement, but = auto-pitch control is a good device =96 I have the Trutrak auto-pitch = and that does a great job =96 never have to retrim in climb, cruise or = descent (A/P needs to be on though for this to work). So, disengaging = the A/P means you take over with the aircraft nicely in = trim.


Regards,

John
Legacy VH-XTZ
John N G Smith
Tel / fax:    +61-8-9385-8891
Mobile:      +61-409-372-975
Email:         john@jjts.net.au

=

From: "Greenbacks, UnLtd." <N4ZQ@VERIZON.NET>
Reply-To: Lancair Mailing List <lml@lancaironline.net>
Date: Thursday, 28 March 2013 = 10:07 PM
To: Lancair Mailing = List <lml@lancaironline.net>
Subject: [LML] Re: Elevator trim = control

My elevator = trim on at pattern speeds works well but is way too = sensitive
at high speed. Ray Allen makes a speed control and = I'm curious to know if any of you
have tried it. Any other = solutions out there?

Angier = Ames
N4ZQ
--

= --Apple-Mail-55--81253264--