<div>I think this is a problem with the processing capability of the TX. You have a progammed mix, it reads one channel then the next. I had a 9CAP where this problem was very noticable. Now on my 9Z its not as noticable, it looks like the slave servo is a little slow to catch up. Only real solution in my opinion is a match box, y-cable or similar device.</div> <div> </div> <div>I can sit back and pick which servo is the slaved just watching the surfaces. </div> <div> </div> <div>Im understanding that your endpoints match when the surface are finished moving, and the middle is matched as well. You should be able to stop at any point in the travel and the pointers line up, when they stop moving. If this is the case your linkage would be ok. </div> <div> </div> <div>I think the speed of the servos has passed the processing speed of the radio.<BR><BR><B><I>Bob Richards <bob@toprudder.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <DIV>That might be the cause, or it could simply be a difference in linearity between the servos.</DIV> <DIV> </DIV> <DIV>Bob R.</DIV> <DIV><BR><BR><B><I>jivey61@bellsouth.net</I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Peter<BR>What causes this to happen is the location of the pushrod connections at the<BR>elevators hinge points.One is not the same distance to the hinge line as the<BR>other. Or the distance to the hinge line from the clevis's is not the same.<BR>You corrected for the difference at max throw,but the tracking is off in<BR>between.<BR>Have a looksee.<BR><BR>Jim Ivey<BR>----- Original Message ----- <BR>From: "Peter Pennisi" <PENTAGON.SYSTEMS@BIGPOND.COM><BR>To: "'NSRCA Mailing List'" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>Sent: Thursday, August 10, 2006 10:05 AM<BR>Subject: [NSRCA-discussion] Twin
elevator servo issue using Futaba 9 ZAP<BR><BR><BR>><BR>> I am using a twin elevator setup (for the first time) in my current F3A<BR>> bird. I am having some servo tracking issues which I can't resolve. All<BR>end-<BR>> points and sub-trims have been adjusted perfectly however when I place<BR>some<BR>> long extension pins (6 inches) on my elevator halves directed back to the<BR>> centre of my rudder I notice one side leads while the other lags. At half<BR>> elevator stick the throws are different but the end points line up<BR>> perfectly.<BR>><BR>> What are you guys doing to get this exact (if you can?)<BR>><BR>> I have one channel plugged into the elevator channel while the other is in<BR>> the gear channel. I am using the Ailevators function on the radio and<BR>> configured as suggested.<BR>><BR>><BR>> Thanks<BR>><BR>> Peter<BR>><BR>><BR>> _______________________________________________<BR>>
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