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<DIV>Try this on...........</DIV>
<DIV>Set the post where you want it, say 3/8 - 1/2 inch back from the hinge line. Now redrill and trim the 3/4" control horn to put the clevis on the hinge line. Only use what you need. No matter what the length of the control horn it puts stress on the molded plastic, have to presume its strong enough to take the load. </DIV>
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<DIV class=signature id=signature>--<BR>Gene Maurice <BR>gene.maurice@comcast.net <BR>Plano, TX</DIV>
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<DIV><FONT face=Arial size=2>Eddie,</FONT></DIV>
<DIV><FONT face=Arial size=2>Welcome to D6. You already were a D36'er but now your assimilation is complete.</FONT></DIV>
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<DIV><FONT face=Arial size=2>I could have saved you the agony. Tried to do the same thing about 6 months ago with the same outcome. I wanted them to screw to my own 6-32 threaded rods so I could set the rod 3/4" behind the hinge line. Paid the big bucks for the set and used the long arms anyways. HOWEVER, it didn't work out. The long 3/4" reach of these "overhang" pieces looked fine with my rudder at neutral, but when the surface deflected they formed a weird angle with the pull-pull cable and almost hit the fuse. I didn't like the look. I no longer think these are the cats meow. The fix was to use the small white nylon old-style pieces but offset the control arm at the servo end. Looks better and no weird stress angles on the cables.</FONT></DIV>
<DIV><FONT face=Arial size=2>--Lance</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=perkinsrx@centurytel.net href="mailto:perkinsrx@centurytel.net">Eddie Batchelor</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, November 29, 2004 10:06 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Elev. Pull pull Question</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2>I contacted Dubro wanting to purchase only the plastic overhang piece as I probably won't ever use the bolts and didn't wish to pay for the entire unit. They beat around the bush for almost 3 months before finally refusing to sell them to me. The first answer I was given was it would have to be a minumum of 50. I said no problem ,what would the cost for 50 be. Then they responded stating they didn't sell the parts individually.</FONT></SPAN></DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2>I sure would like to locate such a part by someone. Most all others seem quite short.</FONT></SPAN></DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2>Any ideas would be quite welcome?</FONT></SPAN></DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2>Eddie</FONT></SPAN></DIV>
<DIV><SPAN class=020000316-29112004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Dean Pappas<BR><B>Sent:</B> Monday, November 29, 2004 10:43 AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> RE: Elev. Pull pull Question<BR><BR></FONT></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Hello Bob,</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Go buy some DuBro # 867 control horns. They have almost 3/4" of overhang between the bolt and the little hole for the clevis, in the little screw-on pieces.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Use those pieces, but set the bolt and nut aside, and see if the little holes line up with the center of the hinges.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>If not, then drill new holes in the black plastic bits so that they do line up: one straight line through both holes and the center of the hinge.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Now when you get the horns all the same length, it will be much easier to get the throws matched in both directions.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>This is absolutely necessary for matching two elevator halves properly, but is also a good idea for rudders.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>The problem with the stock setup is that the cables slacken at the ends, and tighten at neutral.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>While this might sound like a good thing, it is awful: the servo has to fight the tightening cables as the surface comes closer to neutral,</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>then as it gets there, the surface may try to "spring" to the opposite direction.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>The servo and gear train will prematurely beat themselves up chasing this problem.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>You want the cable tension to be almost constant throughout the throw.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>There will be pictures of this when I get the Excelleron review out the door.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>One of the previous posts pointed to a website that showed the proper geometry.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>DuBro and Rocket City both make parts that are useful, for this problem.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Check DuBro.com and put #867 into their search engine, you can see the lonng overhang part. It's either 5/8" or 3/4" from bolt to clevis hole.</FONT></SPAN></DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=494275614-29112004><FONT face=Arial color=#0000ff size=2>Later,</FONT></SPAN></DIV>
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<P><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT face="Times New Roman">Kodeos Communications</FONT> <BR><FONT face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT face="Times New Roman">d.pappas@kodeos.com</FONT> </P>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Bob Pastorello<BR><B>Sent:</B> Friday, November 26, 2004 8:58 AM<BR><B>To:</B> NSRCA<BR><B>Subject:</B> Elev. Pull pull Question<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>May seem obvious, but I could use some help here....setting up my Excelleron, centers are okay, cable tensions are pretty close, centering is good. Up elevator is fine, on Down elevator, ONE elevator moves farther, but they track together except at the endpoint, as close as I can tell.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anyone have suggestions on how I'd fine tune this out...??</FONT></DIV>
<DIV><FONT face=Arial size=2>Hope everyone had a great T-day!!</FONT></DIV><FONT face=Arial size=2>
<DIV><BR>Bob Pastorello<BR>NSRCA 199 AMA 46373<BR><A href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR><A href="http://www.rcaerobats.net/">www.rcaerobats.net</A></DIV>
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