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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>+1 on the Hakko. I use a 3/32” chisel tip for almost all of my soldering from 22 AWG on servo boards to 10 AWG battery leads. The original tip on my iron is 5 years old now and still going strong. I do coat the tip with fresh solder before I turn the iron off after a soldering session.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dave<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>Keith Hoard<br><b>Sent:</b> Tuesday, August 21, 2012 9:13 AM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>A few years ago I bought a Hakko 936 soldering station. It is "only" 65 watts, but it can quickly and easily solder 10 gauge wire all day long. Warm up time is about 1 minute from switching on.<br><br>The key to soldering big stuff is the "heat recovery" ability of the soldering iron. The Hakko has a ceramic element in the tip of the soldering iron that acts as a heat governor while soldering to always maintain the preset temp on the dial. As soon as you put the tip on anything that draws heat away (wire, wet sponge) the power LED on the front starts blinking showing you it is sending more juice to the tip. Equally important is that the tip cools down when you're not using it so the silver coating on the tip doesn't oxidize. I still have the original tip on my Hakko.<br><br>I have a 100W soldering gun that can't even begin to keep up with the Hakko soldering station, so more power isn't always better.<br clear=all><br>Keith Hoard<br>Collierville, TN<br><a href="mailto:khoard@gmail.com">khoard@gmail.com</a><br><br><br><br><o:p></o:p></p><div><p class=MsoNormal>On Tue, Aug 21, 2012 at 7:53 AM, Michael Cohen <<a href="mailto:precisionaero@hotmail.com" target="_blank">precisionaero@hotmail.com</a>> wrote:<o:p></o:p></p><div><div><div><p class=MsoNormal>Well, I have turned off the logger, but tomorrow night, when I get back from San Diego, the ESC will get some new bullet connectors, just to be sure. With a contest coming up in St. Clairsville, I wouldn't what to have to break out "old reliable"..... the YS powered Integral!<br> <br>I do use a technique like Verne stated in another post. About the only thing I have had trouble with is, on the 4mm bullets, once the pre-tinned wire gets pushed down in the connector with melted solder, there isn't any room left for adding more. I do hold the iron right at the small hole in the bullet, just to be sure all solder draws there while it is still hot. We will see what happens Thursday when I do a run up.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Regards,<o:p></o:p></p></div><div><p class=MsoNormal>Mike C <o:p></o:p></p></div><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><p class=MsoNormal>From: <a href="mailto:DaveL322@comcast.net" target="_blank">DaveL322@comcast.net</a><br>To: <a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a><br>Date: Tue, 21 Aug 2012 07:28:30 -0400<o:p></o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>Subject: Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"<o:p></o:p></p><div><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>When the data logging buffer on a CC ICE ESC is full, it is not uncommon to have a small “knocking” sound with outrunners and large direct drive inrunners (ie, Pletty Advance). This is well documented on some of the forums. The sound is generally described as a light tapping, knocking, rattle, etc…..and generally does not occur across the full throttle range. I’ve never heard it described as loud or violent. The solution is to turn off the data logging when it is not specifically needed.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have never encountered the knocking on a geared inrunner; full buffer or not.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dave Lockhart</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Team Castle Creations</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [mailto:<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a>] <b>On Behalf Of </b>Dave Harmon<br><b>Sent:</b> Monday, August 20, 2012 11:53 PM<br><b>To:</b> 'General pattern discussion'<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"</span><o:p></o:p></p></div></div><p> <o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I was out flying this afternoon till dark and Ken Kaut showed up.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I asked him about my knocking sound and he said right away that the logging is the cause of the knock.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>It sounds exactly like thumping the fuse with your finger.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Ken said that when the buffer is full…..it doan make no mo noise……or just shut off the logging.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>At least it ain’t ready to catch fire or come aloose or anythin….</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>And for that I’m grateful…I don’t need any more problems.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><div><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Dave Harmon</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>NSRCA 586</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>K6XYZ[at]sbcglobal[dot]net</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, Ok.</span></b><o:p></o:p></p></div><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> <a href="mailto:[mailto:nsrca-discussion-bounces@lists.nsrca.org]" target="_blank">[mailto:nsrca-discussion-bounces@lists.nsrca.org]</a> <b>On Behalf Of </b>Anthony Abdullah<br><b>Sent:</b> Monday, August 20, 2012 6:47 PM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"</span><o:p></o:p></p></div></div><p> <o:p></o:p></p><div><div><p>I had the exact same sound with mine, horrible sound like throwing a gear at full throttle. I was actually surprised when there wasn't any damage. Mark loaned me an ESC and I went home to start testing. Plugged his in and it worked perfectly. Mine had gotten to the point of doing it almost every time I throttled up. I went to take his ESC out and the bullet from the motor came right off with it. Hmmmm this migh have had something to do with it! I resoldered all of the bullets and have not had the problem since.<o:p></o:p></p></div><div><p> <o:p></o:p></p></div><div><p>I suck at soldering so I wasn't terribly surprised. I did notice before it got worse that the motor would hesitate a little bit, make a little gringing noise, or turn backward about a 32nd of a turn when I first hit the idle switch on my transmitter to start the prop spinning. A couple years ago at the Columbus, OH pattern contest my Neu motor wouldn't start at all without making a horrible grinding noise. Sent it back to me and they changed some things but the problem remained. I finally changed out the ESC and needed to change the motor bullets to the right type and mysteriously the problem went away. Scott Pavlock is still running that motor and ESC with zero issues!<o:p></o:p></p></div><div><p> <o:p></o:p></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><hr size=1 width="100%" align=center></span></div><p style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael Cohen <<a href="mailto:precisionaero@hotmail.com" target="_blank">precisionaero@hotmail.com</a>><br><b>To:</b> NSRCA <<a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>><br><b>Sent:</b> Mon, August 20, 2012 4:36:47 PM<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"</span><o:p></o:p></p><div><p>Well, I needed an excuse to swap out the current connectors on the ESC for some deeper ones.... I just need to wait until I am back in town.<br><br>Mike C<br> <o:p></o:p></p><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><p style='margin-bottom:12.0pt'>CC: <a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a><br>From: <a href="mailto:vogel.peter@gmail.com" target="_blank">vogel.peter@gmail.com</a><br>Date: Sun, 19 Aug 2012 20:15:32 -0700<br>To: <a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a><br>Subject: Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"<o:p></o:p></p><div><p>One of the common causes of that is a bad solder joint between the ESC and the motor where some arcing is happening in the joint, frequently not seen on the ground unless it's gotten really bad because you don't have the G variations on the mechanical connection of the bad joint. <o:p></o:p></p></div><div><p> <o:p></o:p></p></div><div><p>Peter+<br><br>Sent from my iPhone4S<o:p></o:p></p></div><div><p style='margin-bottom:12.0pt'><br>On Aug 19, 2012, at 7:52 PM, "Verne Koester" <<a href="mailto:verne@twmi.rr.com" target="_blank">verne@twmi.rr.com</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p><span style='font-family:"Arial","sans-serif";color:#1F497D'>I was there when it happened and it definitely wasn’t a normal sound. I thought something had broken inside the fuse. Mike landed immediately and we checked everything and all seemed okay including a run-up on the ground so he went up again and the sound happened again but later in the flight (the first time it happened immediately after he broke ground). I’m very familiar with the plane since it used to be mine. I had the same motor but a different controller. Another pilot there said it sounded like an “electric backfire”. I’ve never heard one before, but it sounded pretty scary.</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#1F497D'>Verne Koester</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] <b>On Behalf Of </b>Dave Harmon<br><b>Sent:</b> Sunday, August 19, 2012 5:54 PM<br><b>To:</b> 'General pattern discussion'<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"</span><o:p></o:p></p></div></div><p> <o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Hi Mike….</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I have noticed a sound like a ‘knock’ on the side of the fuselage on 3 different airplanes, Plett 30-10 and Advance and three ESC…a CC 80HV ICE and 2 CC 80HV ICE V2.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I’ve looked at logs and don’t recognize any problems.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I have always wondered what the sound was…at first I thought it might have caused by the cables to the rudder and elevator slapping the side if the fuse but they are fastened down tightly.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Then…I thought it might be caused by the wheels rattling….</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>It seems to happen most of the time on an up line.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>It doesn’t seem to be a problem…yet…but I would like to know what is causing it.</span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><div><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Dave Harmon</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>NSRCA 586</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>K6XYZ[at]sbcglobal[dot]net</span></b><o:p></o:p></p><p><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, Ok.</span></b><o:p></o:p></p></div><p><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> <a href="mailto:[mailto:nsrca-discussion-bounces@lists.nsrca.org]" target="_blank">[mailto:nsrca-discussion-bounces@lists.nsrca.org]</a> <b>On Behalf Of </b>Michael Cohen<br><b>Sent:</b> Sunday, August 19, 2012 3:48 PM<br><b>To:</b> NSRCA<br><b>Subject:</b> [NSRCA-discussion] Hacker C50-14XL comp/Castle 80HV Ice 2 combo "backfiring"</span><o:p></o:p></p></div></div><p> <o:p></o:p></p><div><div><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>I had a strange problem today with a Hacker C50-14XL comp/Castle 80HV Ice 2 combo. Sounded like the motor/ESC was backfiring, so I stopped flying. I had 56 flights before today, and this is the first time I noticed the backfiring. I was at a contest last weekend, so if it had occurred there, I think people, including me, would have noticed.</span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Well, upon taking it home and hooking it up to the computer, I did find that all my settings were still where they were supposed to be, so there was no unexplained change there. I downloaded the data logger, but I really didn’t check it too closely. I then went online to look for backfiring problems and the only thing I found was a sample rate of 10hz (mine was at 1hz) could cause a backfire. I also noted a comment that if you run out of data logging space, that could cause a “ticking”. I did not have a ticking, but I decided to clear all stored logging information and set the sampling rate to "disabled". I ran the motor/ESC for about a minute on the ground with no evidence of a backfire. Could the data logging/storage space been it? Has anyone else had a similar experience? FYI, here is my program:</span><o:p></o:p></p><p style='margin-bottom:10.0pt'> <o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Brake Strength: 30% </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Brake Delay: No delay </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Brake Ramp: Medium </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Cutoff Voltage: 3.2</span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Current Limiting: Normal </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Cutoff Type: Soft Cutoff </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Motor Start Power: low (39)</span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Motor Timing: Custom (3) </span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>PWM Rate: 8khz </span><o:p></o:p></p><p style='margin-bottom:10.0pt'> <o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Regards,</span><o:p></o:p></p><p style='margin-bottom:10.0pt'><span style='font-family:"Arial","sans-serif"'>Mike Cohen</span><o:p></o:p></p><p style='margin-bottom:10.0pt'> <o:p></o:p></p><p><span style='font-size:14.0pt'> </span><o:p></o:p></p></div></div></div></div></blockquote><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div></blockquote><p><br>_______________________________________________ NSRCA-discussion mailing list <a href="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank">NSRCA-discussion@lists.nsrca.org</a> <a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div></div></div></div></div></div><p class=MsoNormal><br>_______________________________________________ NSRCA-discussion mailing list <a href="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank">NSRCA-discussion@lists.nsrca.org</a> <a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div></div></div></div></div><p class=MsoNormal><br>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>