<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:12pt"><DIV>The losses(heat) is not only dependent on current (I2R) but also Mosfet switching losses. V(in) is a factor in the equations.</DIV>
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<DIV>Colin<BR></DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Keith Hoard <khoard@gmail.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> General pattern discussion <nsrca-discussion@lists.nsrca.org><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thu, June 9, 2011 9:53:21 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] E-deadstick, trouble-shooting.<BR></FONT><BR>FWIW - I have the CC Ice HV 80 in an Integral, and the data logger<BR>typically shows the temp rising to around 140-150F (60-80 amp draw)<BR>and hovering there for the entire flight. Castle tech support says<BR>that their controllers don't start throttling back the juice until the<BR>internal temp reaches over 200F.<BR><BR>What I find interesting is that I have the same controller on my<BR>Osiris (5S pack vs. 10S pack) pulling the same 80 amps, but the<BR>controller temp only rises to about 90F on the Osiris.<BR><BR>I haven't downloaded
the data from Andersonville, but I didn't see any<BR>power loss all weekend. I'm sure that if the system was going to<BR>overtemp, it would have happened this last weekend.<BR><BR>Keith Hoard<BR>Collierville, TN<BR><A href="mailto:khoard@gmail.com" ymailto="mailto:khoard@gmail.com">khoard@gmail.com</A><BR><BR><BR><BR><BR><BR>On Thu, Jun 9, 2011 at 8:36 AM, colin chariandy <<A href="mailto:cchariandy@yahoo.ca" ymailto="mailto:cchariandy@yahoo.ca">cchariandy@yahoo.ca</A>> wrote:<BR>> Got it....I'll add a path for air around the controller.<BR>><BR>> Thanks<BR>> Colin.<BR>><BR>> ________________________________<BR>> From: Verne Koester <<A href="mailto:verne@twmi.rr.com" ymailto="mailto:verne@twmi.rr.com">verne@twmi.rr.com</A>><BR>> To: General pattern discussion <<A href="mailto:nsrca-discussion@lists.nsrca.org" ymailto="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>><BR>>
Sent: Thu, June 9, 2011 9:32:20 AM<BR>> Subject: Re: [NSRCA-discussion] E-deadstick, trouble-shooting.<BR>><BR>> Yes. My controller is mounted immediately behind the motor and in front of<BR>> the batteries. Air coming in the chin cowl flows over the controller and<BR>> batteries and then goes back out the exit which is two, 7” X 1” exit holes<BR>> in the bottom of the fuse right behind the wing tube. I also have two small<BR>> openings in my cheek cowls that are hopefully feeding the fan in the motor.<BR>> Some of the air from those is probably hitting the controller and batteries<BR>> as well.<BR>><BR>><BR>><BR>> Verne Koester<BR>><BR>><BR>><BR>> From: <A href="mailto:nsrca-discussion-bounces@lists.nsrca.org" ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A><BR>> [mailto:<A href="mailto:nsrca-discussion-bounces@lists.nsrca.org"
ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A>] On Behalf Of colin<BR>> chariandy<BR>> Sent: Thursday, June 09, 2011 12:28 AM<BR>> To: General pattern discussion<BR>> Subject: Re: [NSRCA-discussion] E-deadstick, trouble-shooting.<BR>><BR>><BR>><BR>> Mississauga, Ontario.....beat a record high since the 50's.<BR>><BR>><BR>><BR>> Do you guys allow some air to flow from the chin, around the speed<BR>> controller area back into the fuse?<BR>><BR>><BR>><BR>> Colin<BR>><BR>><BR>><BR>> ________________________________<BR>><BR>> From: Ron Van Putte <<A href="mailto:vanputte@cox.net" ymailto="mailto:vanputte@cox.net">vanputte@cox.net</A>><BR>> To: General pattern discussion <<A href="mailto:nsrca-discussion@lists.nsrca.org" ymailto="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>><BR>> Sent:
Wed, June 8, 2011 11:43:00 PM<BR>> Subject: Re: [NSRCA-discussion] E-deadstick, trouble-shooting.<BR>><BR>> Wow! 34C converts to 93.2F. What part of Canada was this in?<BR>><BR>> I agree with Keith. I run my Jeti 90 on standoffs, using the three mounting<BR>> holes. Never had a problem, even at Andersonville, GA last weekend, where<BR>> the temperatures were in the upper 90sF.<BR>><BR>> Ron Van Putte<BR>><BR>> On Jun 8, 2011, at 10:32 PM, Keith Hoard wrote:<BR>><BR>>> Sounds like ESC shut down for heat. Does the Jeti have data logging?<BR>>><BR>>><BR>>><BR>>> Keith Hoard<BR>>> Collierville, TN<BR>>><BR>>> On Jun 8, 2011, at 21:57, colin chariandy <<A href="mailto:cchariandy@yahoo.ca" ymailto="mailto:cchariandy@yahoo.ca">cchariandy@yahoo.ca</A>> wrote:<BR>>><BR>>>> Hey guys...I was out practicing tonight when the motor
lost all power in<BR>>>> the first upline of the M. Landed the plane deadstick and could find nothing<BR>>>> diconnected so I thought the battery was somehow open circuit. Plugged in<BR>>>> another batt and the controller armed and ran the motor normally.<BR>>>> Re-installed the previous batt and again all was OK. I flew the plane on<BR>>>> the same battery the failure occured with and there were no re-occurences<BR>>>> but I was way too uncomfortable to really concentrate.<BR>>>><BR>>>> It was 34C when I took off....the hottest I have ever flown that plane<BR>>>> and I did have the controller velcroed in place in the chin with foam under<BR>>>> it to prevent movement....not the coolest set-up.<BR>>>><BR>>>> The plane is a Xigris, motor is the 30-10 evo and a Jeti 90 speed<BR>>>> controller, JR Rx.<BR>>>><BR>>>>
Any trouble shooting advice? Do the Jetis have a thermal shut down?<BR>>>><BR>>>> I did change the speed controller mounting to use the three screws<BR>>>> instead of velcro.<BR>>>><BR>>>> Colin<BR>>>><BR>>>><BR>>>><BR>>>><BR>>>> _______________________________________________<BR>>>> NSRCA-discussion mailing list<BR>>>> <A href="mailto:NSRCA-discussion@lists.nsrca.org" ymailto="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><BR>>> _______________________________________________<BR>>> NSRCA-discussion mailing list<BR>>> <A href="mailto:NSRCA-discussion@lists.nsrca.org"
ymailto="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><BR>><BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> <A href="mailto:NSRCA-discussion@lists.nsrca.org" ymailto="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><BR>><BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> <A href="mailto:NSRCA-discussion@lists.nsrca.org" ymailto="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><BR>> <A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
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