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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-family:"Arial","sans-serif";color:#1F497D'>Hi Jon,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>The short answer is no. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>You have the original C50-14XL. The big improvement in the Comp version was the fan and bolt on gear box. The original suffered with magnet separation problems and other issues because of the heat. The Comp version eliminated all the problems. The good news is that the power is the same for both versions. The planetaries, gearbox bearings, drive hub, and motor bearings are interchangeable. The case, gearbox, and rotor are not. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>As I recall, the bolt pattern on the front of both motors is the same, so a swap should be fairly simple if you decide to do that down the road.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>Verne<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Arial","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>Jon Lowe<br><b>Sent:</b> Thursday, November 14, 2013 4:00 PM<br><b>To:</b> nsrca-discussion@lists.nsrca.org<br><b>Subject:</b> Re: [NSRCA-discussion] Hacker C50 Comp fan FYI<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'>Ok, all of you Hacker C50 experts; I have a C50-14XL Acro 6.7:1 in the Spark I'm using as a test bed. This is one of the older ones that had the gear box that screws onto the motor, rather than being attached with bolts. Is there any way to economically add a fan to this one? The gear box gets very hot to the touch. I'm careful to let it cool between flights, but I'd like to keep it cooler in flight. I don't see anything on this motor on the Hacker USA website (or whatever it is called nowdays).<o:p></o:p></span></p></div><div><p class=MsoNormal><span class=apple-style-span><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>Jon</span></span><span style='font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>-----Original Message-----<br>From: Verne Koester <<a href="mailto:verne@mi.rr.com">verne@mi.rr.com</a>><br>To: 'Bob Kane' <<a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a>>; 'General pattern discussion' <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br>Sent: Thu, Nov 14, 2013 1:28 pm<br>Subject: Re: [NSRCA-discussion] Hacker C50 Comp fan FYI<o:p></o:p></span></p><div id="AOLMsgPart_2_23443ec9-5dc2-4b99-ab5a-73a682fbc486"><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Looks to me like you could get the same effect by removing the phenolic ring off the old one. I flew a whole season with the ring removed a few years back. No change in temps or performance.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Verne<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;border-color:currentColor currentColor'><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a> [<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org?">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] <b>On Behalf Of </b>Bob Kane<br><b>Sent:</b> Thursday, November 14, 2013 11:50 AM<br><b>To:</b> nsrca<br><b>Subject:</b> [NSRCA-discussion] Hacker C50 Comp fan FYI<o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=top style='padding:0in 0in 0in 0in'><div><div><p class=MsoNormal><span style='font-size:10.0pt'>FYI, I just received a new fan for a Hacker C50 Comp from Aero Model and at first I thought they sent me the wrong part. But it turns out Hacker made a change to the fan. You need to remove the old fan and the brass spacer and clean the shaft before installing the new one. I also added a couple of 6mm shims to match the combined length of the old fan and brass shim. The new fan does not have set screws, it needs to be green loctited in place.</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.0pt'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.0pt'>I attached a picture with the old fan and shim on the left and the new fan on the right.</span><o:p></o:p></p></div></div></td></tr></table><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Bob Kane<br><a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a><o:p></o:p></span></p></div></div></div></div></div></div><div id="AOLMsgPart_3_23443ec9-5dc2-4b99-ab5a-73a682fbc486"><pre style='background:white'><tt><span style='color:black'>_______________________________________________<o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'>NSRCA-discussion mailing list<o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'><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></span></tt></pre></div></div></div></body></html>