Re: Trim servo speed control


Subject:    Re: Trim servo speed control
From:    Chris Stone (rv8iator@earthlink.net)
Date:    Mon Mar 15 - 2:15 PM
Matt Dralle at Matronics also sells a trim servo speed governor.

http://www.matronics.com/governor/index.htm

chris stone
RV-8
Oregon


-----Original Message-----
>From: Martin Sobel <rv8vator@comcast.net>
>Sent: Mar 14, 2010 1:22 PM
>To: RV8-List Digest Server <rv8-list@matronics.com>, RV8-List Digest List <rv8-list-digest@matronics.com>
>Subject: Re: RV8-List Digest: 2 Msgs - 03/13/10
>
>
>There are two systems on the market that slow down the trim motor at higher
>air speeds. (I find this to be a problem with all of the normal
>installations.)
>
>Both use an airspeed sensor.
>
>One is part of a box that makes wiring the airplane simpler and the other is
>by TCW Technologies: www.tcwtech.com
>
>Both available from Steinair.com
>
>Martin Sobel
>RV-8 Wings
>
>
>On 3/14/10 4:59 AM, "RV8-List Digest Server" <rv8-list@matronics.com> wrote:
>
>> *
>> 
>>  =================================================
>>    Online Versions of Today's List Digest Archive
>>  =================================================
>> 
>> Today's complete RV8-List Digest can also be found in either of the
>> two Web Links listed below.  The .html file includes the Digest formatted
>> in HTML for viewing with a web browser and features Hyperlinked Indexes
>> and Message Navigation.  The .txt file includes the plain ASCII version
>> of the RV8-List Digest and can be viewed with a generic text editor
>> such as Notepad or with a web browser.
>> 
>> HTML Version:
>> 
>>     
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2
>> 010-03-13&Archive=RV8
>> 
>> Text Version:
>> 
>>     
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 
>> 10-03-13&Archive=RV8
>> 
>> 
>>  ===============================================
>>    EMail Version of Today's List Digest Archive
>>  ===============================================
>> 
>>  
>>            ----------------------------------------------------------
>>                            RV8-List Digest Archive
>>                                       ---
>>                      Total Messages Posted Sat 03/13/10: 2
>>            ----------------------------------------------------------
>>  
>>  
>> Today's Message Index:
>> ----------------------
>>  
>>      1. 12:23 PM - Slowing down the trim  (jimbean6@verizon.net)
>>      2. 02:45 PM - Re: Slowing down the trim  (cs@charlesstringham.com)
>>  
>>  
>>  
>> ________________________________  Message 1
>> _____________________________________
>> 
>> 
>> Time: 12:23:26 PM PST US
>> From: jimbean6@verizon.net
>> Subject: Slowing down the trim
>> 
>> 
>> We all know that the usual trim setup used in the RV's and others is very
>> touchy.
>> Early in building my RV-8 I built and installed a 9 volt power supply
>> intending
>> to power the headsets with it.
>> Foolish boy, that doesn't work.
>> Since the 9 volts was already there I tried it on the trim motor, leaving the
>> trim
>> indicator supply at 14 volts.
>> Everything has been working fine with the trim just running slower, a good
>> thing.
>> I realize that most people will not want to bother installing a separate 9
>> volt
>> supply but it does work.
>> For those interested the shack 5 amp regulator has a schematic and parts list
>> on
>> the back of the package.
>> Contact me off-line for my trim schematic. It is in autocad format.
>> Jim Bean
>> jimbean6@verizon.net
>> RV-8 81110 80 hours.
>> 
>> 
>> ________________________________  Message 2
>> _____________________________________
>> 
>> 
>> Time: 02:45:23 PM PST US
>> Subject: Re: Slowing down the trim
>> From: cs@charlesstringham.com
>> 
>> 
>> Cool idea, but couldn't you just install a rheostat to throttle back on the
>> voltage
>> to the trim system instead of putting in another lower voltage system? This
>> way you could have the speed trim and the fine trim.  Does your low voltage
>> system make it easier to trim out in cruise?
>> ------Original Message------
>> From: jimbean6@verizon.net
>> Sender: owner-rv8-list-server@matronics.com
>> ReplyTo: rv8-list@matronics.com
>> Subject: Slowing down the trim
>> Sent: Mar 13, 2010 12:07 PM
>> 
>> 
>> We all know that the usual trim setup used in the RV's and others is very
>> touchy.
>> Early in building my RV-8 I built and installed a 9 volt power supply
>> intending
>> to power the headsets with it.
>> Foolish boy, that doesn't work.
>> Since the 9 volts was already there I tried it on the trim motor, leaving the
>> trim
>> indicator supply at 14 volts.
>> Everything has been working fine with the trim just running slower, a good
>> thing.
>> I realize that most people will not want to bother installing a separate 9
>> volt
>> supply but it does work.
>> For those interested the shack 5 amp regulator has a schematic and parts list
>> on
>> the back of the package.
>> Contact me off-line for my trim schematic. It is in autocad format.
>> Jim Bean
>> jimbean6@verizon.net
>> RV-8 81110 80 hours.
>> 
>> 
>> Sent from my Verizon Wireless BlackBerry
>> 
>> 
>>  
>> 
>> 
>>  
>>  
>> 
>> 
>
>




Other Matronics Email List Services

  • Post A New Message
  •   RV8-List@matronics.com
  • UN/SUBSCRIBE
  •   http://www.matronics.com/subscription
  • List FAQ
  •   http://www.matronics.com/FAQ/RV8-List.htm
  • Full Archive Search Engine
  •   http://www.matronics.com/search
  • 7-Day List Browsing
  •   http://www.matronics.com/browse
  • Browse the List Digests
  •   http://www.matronics.com/digest
  • Live Online Chat!
  •   http://www.matronics.com/chat
  • Archive Downloading
  •   http://www.matronics.com/archives
  • Photo Share
  •   http://www.matronics.com/photoshare
  • Other Email Lists
  •   http://www.matronics.com/emaillists
  • Contributions
  •   http://www.matronics.com/contributions

    These Email List Services are sponsored solely by Matronics and through the generous contributions of its members.

    -- Please support this service by making your Contribution today! --