<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt">I would agree.&nbsp; The example of the elevator is open loop, it does not use any kind of an Earth reference and it does not create a sequence or use a timing device.&nbsp; All it does is create a highly nonlinear relationship between the stick and the elevator.&nbsp; If we can't have nonlinear stick to control surfaces programmed, we've all got to zero out our expos.<br><div><br>I also think the ESC example has to be allowed.&nbsp; If the issue is that it is a closed loop control, then we all have to go into our servos and cut the wires from the feedback pots. [Insert comment on what my flying looks like here].&nbsp; Servos are, nearly by definition of the word, closed loop feedback devices.&nbsp; The ESC example is just another example of a closed loop feedback system, the only difference is the loop
 doesn't close on mechanical position, it closes on motor rpm or whatever.<br><br>So I am a little troubled by the AMA rule book saying that “Radio control equipment
shall be of the open loop type…"&nbsp; A controls person would say we always (we hope) have closed loop control of the airplane. Every closed loop control system has these minimum
elements:&nbsp; a commanded state; at least one actuator that has an effect 
on
the actual state; at least one sensor capable of estimating the actual 
state;
and last, a control algorithm that generates a feedback signal to change
 the
actuator input to minimize the difference between the commanded and 
actual
states.<br>
<br>
In our case both the sensors and control algorithm that close the loop are wetware located 
between our
ears [or elsewhere for some of us]. <span style=""> </span>Just because a human is in the loop does not
make it open loop control.<span style="">&nbsp; </span>If you want
to fly open loop control, you have to break the 
control loop –
it's easily done, just fly with your eyes closed. [Insert second comment about my flying here].<span style=""> <br><br>I'm not sure adding more examples really solves the underlying problem which I am afraid is with the idea that our control is open loop when it is not.&nbsp; In control parlance the closed control loops in the servos are inner loops and the multi-axis control of aircraft attitude and rates through our thumbs is the outer loop.&nbsp; I think a more technically correct approach would be to say that we can't use artificial sensors that measure and use primary outer loop parameters which I would define to be at a minimum aircraft attitude, rates and flight path angles.<br><br>Probably this doesn't solve it either.&nbsp; The trouble with advancing technology is it makes the simple very messy.<br></span></div><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><br>Ed<br><div style="font-family: times new roman,new
 york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> "ronlock@comcast.net" &lt;ronlock@comcast.net&gt;<br><b><span style="font-weight: bold;">To:</span></b> General pattern discussion &lt;nsrca-discussion@lists.nsrca.org&gt;<br><b><span style="font-weight: bold;">Sent:</span></b> Wed, March 3, 2010 11:40:17 AM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [NSRCA-discussion] Permitted Controls<br></font><br>
<style type="text/css">p {margin:0;}</style><div style="font-family: Arial; font-size: 12pt; color: rgb(0, 0, 0);"><p align="left">My interpretation of permitted controls would allow the example below -</p>
<p align="left">Application of full elevator and full rudder by pilot&nbsp;switches on a "mixer"&nbsp; that results in half elevator.</p>
<p align="left">It does not involving timing intervals, or aircraft peformance in commanding an inpur (half elevator in this example)</p>
<p align="left">&nbsp;</p>
<p align="left">Ron Lockhart</p>
<p align="left">&nbsp;</p>
<p align="left">Example: Permitted:</p>
<p align="left">1. Control rate devices that are manually switched by the pilot.</p>
<p align="left">2. Any type of button or lever, switch, or dial control that is initiated or activated and terminated</p>
<p align="left">by the competitor.</p>
<p align="left">3. Manually operated switches or programmable options to couple and mix control functions.<br>----- Original Message -----<br>From: "Tim Pascoe [Burlington]" &lt;Tim.Pascoe@ec.gc.ca&gt;<br>To: "General pattern discussion" &lt;nsrca-discussion@lists.nsrca.org&gt;<br>Sent: Wednesday, March 3, 2010 11:35:33 AM GMT -05:00 US/Canada Eastern<br>Subject: Re: [NSRCA-discussion] Max volts<br><br>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; color: navy; font-family: Arial;">In reading this, it seems the logic programming available in radios such as the 14MZ, which permit rate changes automatically based on single or multiple stick positions would be illegal. So when I set a condition to drop the Elevator rate by half as soon as full Elevator and full Rudder are initiated, at the entry to a snap, I seem to breaking Number 3 in the Not Permitted list below.</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; color: navy; font-family: Arial;"></span></font>&nbsp;</p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; color: navy; font-family: Arial;">Correct?</span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; color: navy; font-family: Arial;"></span></font>&nbsp;</p>
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<p class="MsoNormal"><font color="navy" face="Times New Roman" size="3"><span style="font-size: 12pt; color: navy;">Tim Pascoe <br><br></span></font><font color="navy" face="Comic Sans MS" size="1"><span style="font-size: 7.5pt; color: navy; font-family: 'Comic Sans MS';"></span></font></p></div>
<div>
<p class="MsoNormal"><b><font face="Tahoma" size="2"><span style="font-weight: bold; font-size: 10pt; font-family: Tahoma;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;"> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style="font-weight: bold;">On Behalf Of </span></b>Earl Haury<br><b><span style="font-weight: bold;">Sent:</span></b> Wednesday, March 03, 2010 11:02 AM<br><b><span style="font-weight: bold;">To:</span></b> General pattern discussion<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [NSRCA-discussion] Max volts</span></font></p></div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"></span></font>&nbsp;</p>
<div>
<div>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Somewhat reluctantly I'm going to jump into this discussion and try to dissect it a bit. It appears to me that maybe more is being read into the rules than is actually there. There is one paragraph of three sentences that addresses what type of control is permitted&nbsp; and what is not. Then there are some examples of what is permitted and what is not. (See below.) "Examples" by definition aren't all inclusive. I think we probably all agree on the "open loop" concept. The ESC discussion seems to fall somewhere in the&nbsp;"auto-pilot exclusion" and&nbsp; "automatic control sequencing (pre-programming) or automatic control timing device" prohibition seems to be where this discussion lies.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">What's being proposed for ESC functionality, as I understand it, would ensure the same prop speed for a given throttle stick position. Not much difference than a fuel supply control system that ensures the same fuel delivery to the engine at a given throttle position. In neither case is the propulsion system&nbsp;controlling aircraft speed via a feedback loop, the nut on the stick is doing that. Seems OK within the rules to me. </span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">OTOH, I understand the view that control algorithms are doing magic changing "timing" of electrical pulses to the motor. I would argue this is outside the "automatic control timing device" rule which was intended to prevent automatic "control" inputs&nbsp;directly. Yes - I was around when these rules were discussed and implemented, so I have some insight&nbsp;at to their&nbsp;intent. I also realize that there are things around now that weren't at that time that merit these discussions. It would&nbsp;seem that if everyone feels passionately enough about this an easy fix would to add a sentence (pro or con) in the examples part of the rule that is specific to this topic, therefore keeping the "worms in the can".</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Hmmm as Dave says - I wonder how the control algorithms of a servo fit into this, lots of electronic magic going on there.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Earl</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">"Radio equipment shall be of the open loop type (ie no electronic feedback from the model aircraft</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">to the ground). Auto-pilot control utilising inertia, gravity or any type of terrestrial reference is</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">prohibited. Automatic control sequencing (pre-programming) or automatic control timing devices</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">are prohibited.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Example: Permitted:</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">1. Control rate devices that are manually switched by the pilot.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">2. Any type of button or lever, switch, or dial control that is initiated or activated and terminated</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">by the competitor.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">3. Manually operated switches or programmable options to couple and mix control functions.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">SC4_Vol_F3_Aerobatics_09 Effective 1st January 2009 Page 10</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">5</span></font></p>
<p><b><font face="Times New Roman" size="3"><span style="font-weight: bold; font-size: 12pt;">Not </span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">permitted:</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">1. Snap roll buttons with automatic timing mode.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">2. Pre-programming devices to automatically perform a series of commands.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">3. Auto-pilots or gyros for automatic wing levelling or other stabilisation of the model aircraft.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">4. Propeller pitch change with automatic timing mode.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">5. Any type of voice recognition system.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">6. Conditions, switches, throttle curves, or any other mechanical or electronic device that will</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">prevent or limit maximum power or rpm of the propulsion device during the sound/noise test.</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;">7. Any type of learning function involving manoeuvre to manoeuvre or flight to flight analysis."</span></font></p></div></div>
<blockquote style="padding: 0in 0in 0in 4pt; border-width: medium medium medium 1.5pt; border-style: none none none solid; border-color: -moz-use-text-color -moz-use-text-color -moz-use-text-color black; margin: 5pt 0in 5pt 3.75pt;">
<div>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">----- Original Message ----- </span></font></p></div>
<div style="">
<p class="MsoNormal" style="background: none repeat scroll 0% 0% rgb(228, 228, 228);"><b><font face="Arial" size="2"><span style="font-weight: bold; font-size: 10pt; font-family: Arial;">From:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> <a rel="nofollow" title="DaveL322@comcast.net" ymailto="mailto:DaveL322@comcast.net" target="_blank" href="mailto:DaveL322@comcast.net">Dave</a> </span></font></p></div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span style="font-weight: bold; font-size: 10pt; font-family: Arial;">To:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> <a rel="nofollow" title="nsrca-discussion@lists.nsrca.org" ymailto="mailto:nsrca-discussion@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion@lists.nsrca.org">'General pattern discussion'</a> </span></font></p></div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span style="font-weight: bold; font-size: 10pt; font-family: Arial;">Sent:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> Wednesday, March 03, 2010 9:47 AM</span></font></p></div>
<div>
<p class="MsoNormal"><b><font face="Arial" size="2"><span style="font-weight: bold; font-size: 10pt; font-family: Arial;">Subject:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> Re: [NSRCA-discussion] Max volts</span></font></p></div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"></span></font>&nbsp;</p></div>
<div>
<div>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;">Matt,</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;"></span></font>&nbsp;</p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;">One more thought/consideration/question –</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;"></span></font>&nbsp;</p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;">Is electronic ignition with variable timing advance illegal? &nbsp;Essentially the RPM is sensed (through a sensor), and as RPM increases, the timing is advanced.&nbsp; The ESCs of today do the same function…they advance timing as RPM increases, but do so without sensor. &nbsp;Should we go back to sensors and mechanical advance devices?</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;"></span></font>&nbsp;</p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;">Regards,</span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;"></span></font>&nbsp;</p>
<p class="MsoNormal" style="margin-left: 0.5in;"><font color="navy" face="Verdana" size="2"><span style="font-size: 10pt; color: navy; font-family: Verdana;">Dave</span></font></p>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;">On Mar 2, 2010, at 8:15 AM, <a rel="nofollow" ymailto="mailto:rcmaster199@aol.com" target="_blank" href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</a> wrote:</span></font></p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font>&nbsp;</p>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">I had a brief conversation with Dean Pappas on this subject recently. Dean explained that some folks have been advocates of programming the ESC to do some footwork at various stages of battery use. He explained to me just how easy this is to do physically. It seems a few have mentioned something similar in this thread.</span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;"></span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font>&nbsp;</p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">I am not that concerned about raising the voltage of the battery as I see this as a somewhat clear violation of the FAI code.&nbsp;I am more concerned about what and how the ESC is "programmed" . I would like for some one with the electronic/software pedigree to explain to me how programming adjustable rates of voltage potential and making these adjustments automatically, does not constitute a programming violation within the rules as they exist today. </span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;"></span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font>&nbsp;</p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">When the rules were written, we were clearly dealing with&nbsp;RADIO pre-programmed sequences and the like, no gyros, etc. However I would argue that rate auto adjustments that are definitely possible with the ESC's of today, also qualify as a violation of said rules. Someone should sit down and think this through...I could be convinced otherwise but it needs to be a good argument</span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">MattK</span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p></div>
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<p class="MsoNormal" style="margin-left: 0.5in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;"><br><br>&nbsp;</span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p></div>
<p class="MsoNormal" style="margin-bottom: 12pt; margin-left: 0.5in; margin-right: 0in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;"></span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font>&nbsp;</p>
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<p class="MsoNormal" style="margin-bottom: 12pt; margin-left: 0.5in; margin-right: 0in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">-----Original Message-----<br>From: Anthony Romano &lt;<a rel="nofollow" ymailto="mailto:anthonyr105@hotmail.com" target="_blank" href="mailto:anthonyr105@hotmail.com">anthonyr105@hotmail.com</a>&gt;<br>To: <a rel="nofollow" ymailto="mailto:nsrca-discussion@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>Sent: Tue, Mar 2, 2010 8:29 am<br>Subject: Re: [NSRCA-discussion] Max volts</span></font><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;"></span></font></p>
<div id="ecxecxAOLMsgPart_3_a1464e77-3c63-4f8d-b134-28eaec9f2cea">
<p class="MsoNormal" style="margin-bottom: 12pt; margin-left: 0.5in; margin-right: 0in;"><font color="black" face="Arial" size="2"><span style="font-size: 10pt; color: black; font-family: Arial;">Keep this line of thinking in mind next time we talk about weight limits! Or any other rules proposal.<br>&nbsp;<br>Anthony<br>&nbsp;<br>&gt; From: <a rel="nofollow" ymailto="mailto:burtona@atmc.net" target="_blank" href="mailto:burtona@atmc.net">burtona@atmc.net</a><br>&gt; To: <a rel="nofollow" ymailto="mailto:nsrca-discussion@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>&gt; Date: Mon, 1 Mar 2010 22:45:57 -0500<br>&gt; Subject: Re: [NSRCA-discussion] Max volts<br>&gt; <br>&gt; OK, So I have a question. Is knowingly and purposefully violating the intent<br>&gt; and letter of the rules to gain a performance advantage called cheating?<br>&gt; ....... Just asking!<br>&gt; Dave
 Burton<br>&gt; <br>&gt; -----Original Message-----<br>&gt; From: <a rel="nofollow" ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a><br>&gt; [<a rel="nofollow" ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org?" target="_blank" href="mailto:nsrca-discussion-bounces@lists.nsrca.org?">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] On Behalf Of James Oddino<br>&gt; Sent: Monday, March 01, 2010 7:16 PM<br>&gt; To: General pattern discussion<br>&gt; Subject: Re: [NSRCA-discussion] Max volts<br>&gt; <br>&gt; I have the functional concept that solves the rules problem. Picture a 10S<br>&gt; pack positive lead wired to the common of a switch with two poles, a piece<br>&gt; of wire connected from one pole to a pole on a second two pole switch with<br>&gt; its common connected to the ESC. Between the other two poles we place
 our<br>&gt; 11th cell. When the 10S pack is above 37.5 volts the 11th cell is bypassed<br>&gt; and when it is below, like it will be during vertical maneuvers late in<br>&gt; flight, the 11th cell is put in series to boost the voltage to up to 41.7<br>&gt; volts. At no time is the voltage over the spec.<br>&gt; <br>&gt; Having said that, I believe the 10S system provides adequate power with the<br>&gt; right motor at all times of flight even if the voltage drops to 35 volts.<br>&gt; <br>&gt; Jim<br>&gt; <br>&gt; <br>&gt; On Mar 1, 2010, at 8:59 AM, Bob Kane wrote:<br>&gt; <br>&gt; &gt; Going higher and regulating down would be against the rules, the max volts<br>&gt; is still limited to 42.56. <br>&gt; &gt; <br>&gt; &gt; Bob Kane<br>&gt; &gt; <a rel="nofollow" ymailto="mailto:getterflash@yahoo.com" target="_blank" href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a><br>&gt; &gt; <br>&gt; &gt; <br>&gt; &gt; --- On Mon, 3/1/10, krishlan
 fitzsimmons &lt;<a rel="nofollow" ymailto="mailto:homeremodeling2003@yahoo.com" target="_blank" href="mailto:homeremodeling2003@yahoo.com">homeremodeling2003@yahoo.com</a>&gt;<br>&gt; wrote:<br>&gt; &gt; <br>&gt; &gt;&gt; From: krishlan fitzsimmons &lt;<a rel="nofollow" ymailto="mailto:homeremodeling2003@yahoo.com" target="_blank" href="mailto:homeremodeling2003@yahoo.com">homeremodeling2003@yahoo.com</a>&gt;<br>&gt; &gt;&gt; Subject: Re: [NSRCA-discussion] Max volts<br>&gt; &gt;&gt; To: <a rel="nofollow" ymailto="mailto:chad@f3acanada.org" target="_blank" href="mailto:chad@f3acanada.org">chad@f3acanada.org</a>, "General pattern discussion"<br>&gt; &lt;<a rel="nofollow" ymailto="mailto:nsrca-discussion@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>&gt;<br>&gt; &gt;&gt; Date: Monday, March 1, 2010, 9:54 AM<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; Couldn't we go to a higher voltage
 and<br>&gt; &gt;&gt; regulate it back down? A contstant 42.56v would be nice!<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; Chris <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; From: Chad<br>&gt; &gt;&gt; Northeast &lt;<a rel="nofollow" ymailto="mailto:chad@f3acanada.org" target="_blank" href="mailto:chad@f3acanada.org">chad@f3acanada.org</a>&gt;<br>&gt; &gt;&gt; To:<br>&gt; &gt;&gt; <a rel="nofollow" ymailto="mailto:nsrca-discussion@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt; Sent: Sun,<br>&gt; &gt;&gt; February 28, 2010 8:48:48 PM<br>&gt; &gt;&gt; Subject: Re:<br>&gt; &gt;&gt; [NSRCA-discussion] Max volts<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; You would be at about 50% capacity at 3.85 ish volts/cell<br>&gt; &gt;&gt; (resting open circuit), so
 unless you up the capacity you<br>&gt; &gt;&gt; will have a pretty restricted flight time.<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; Chad<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; On 10-02-28 9:25 PM, Ron Van Putte wrote:<br>&gt; &gt;&gt;&gt; That stirs a wild thought in my brain. Fully<br>&gt; &gt;&gt; charged packs don't stay at 4.2 volts per cell very<br>&gt; &gt;&gt; long. On the other hand, once the initial charge<br>&gt; &gt;&gt; voltage is burned off by a constant load, the voltage loss<br>&gt; &gt;&gt; curve "flattens out". What if you put fully<br>&gt; &gt;&gt; charged 6S and a 5S packs in series and "burn them<br>&gt; &gt;&gt; down" to 3.869 volts per cell (a total of 42.56<br>&gt; &gt;&gt; volts for an 11-cell pack) so they were legal for<br>&gt; &gt;&gt; use. Would the voltage of this depleted 11S pack be<br>&gt; &gt;&gt; higher than a fully charged 10S pack at the end of a typical<br>&gt; &gt;&gt; flight? If the end-of-flight voltage might be<br>&gt;
 &gt;&gt; significantly higher for the 11S pack vice a 10S pack, it<br>&gt; &gt;&gt; would be worth investigating, even considering the extra<br>&gt; &gt;&gt; weight of the additional cell. Come on you electronic<br>&gt; &gt;&gt; gurus, show me where I'm wrong.<br>&gt; &gt;&gt;&gt; <br>&gt; &gt;&gt;&gt; Ron Van Putte<br>&gt; &gt;&gt;&gt; <br>&gt; &gt;&gt;&gt; On Feb 28, 2010, at 10:00 PM, James Oddino wrote:<br>&gt; &gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt; What comes after ...? Does it specify a load<br>&gt; &gt;&gt; or any other conditions? Is it measured during the<br>&gt; &gt;&gt; noise test and have a minimum value?<br>&gt; &gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt; Just stirring the pot, Jim O<br>&gt; &gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt; On Feb 28, 2010, at 5:21 PM, John Fuqua wrote:<br>&gt; &gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; No its not (assuming we are talking RC<br>&gt; &gt;&gt; Aerobatics). Try page RCA-2
 para 4.1<br>&gt; &gt;&gt;&gt;&gt;&gt; which<br>&gt; &gt;&gt; states "Electrically-powered model aircraft are<br>&gt; &gt;&gt; limited to a maximum<br>&gt; &gt;&gt;&gt;&gt;&gt; of 42.56 volts.."<br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; -----Original Message-----<br>&gt; &gt;&gt;&gt;&gt;&gt; From: <a rel="nofollow" ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt;&gt;&gt; [<a rel="nofollow" ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org?" target="_blank" href="mailto:nsrca-discussion-bounces@lists.nsrca.org?">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>]<br>&gt; &gt;&gt; On Behalf Of Ron Van Putte<br>&gt; &gt;&gt;&gt;&gt;&gt; Sent: Sunday, February 28, 2010 7:07 PM<br>&gt; &gt;&gt;&gt;&gt;&gt; To: General pattern discussion<br>&gt; &gt;&gt;&gt;&gt;&gt; Subject: Re:
 [NSRCA-discussion] Max volts<br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; It's in the general rules, not in the R/C<br>&gt; &gt;&gt; section.<br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; On Feb 28, 2010, at 6:50 PM, Jim Quinn wrote:<br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; Where can I find the rule<br>&gt; &gt;&gt; for max volts?<br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt; _______________________________________________<br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt;&gt;&gt;&gt; <br><span>&gt; &gt;&gt; <a target="_blank"
 href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span><br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt; _______________________________________________<br>&gt; &gt;&gt;&gt;&gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt;&gt;&gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt;&gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt;&gt; <br>&gt; &gt;&gt; _______________________________________________<br>&gt; &gt;&gt;&gt;&gt;&gt; NSRCA-discussion mailing<br>&gt; &gt;&gt; list<br>&gt; &gt;&gt;&gt;&gt;&gt; <a rel="nofollow"
 ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt;&gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt;&gt;&gt;&gt; <br>&gt; &gt;&gt;&gt;&gt; _______________________________________________<br>&gt; &gt;&gt;&gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt;&gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt;&gt;&gt; <br>&gt; &gt;&gt;&gt; _______________________________________________<br>&gt;
 &gt;&gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt;&gt;&gt; <br>&gt; &gt;&gt; _______________________________________________<br>&gt; &gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt;&gt; <br>&gt; &gt;&gt; <br>&gt; &gt;&gt;
 <br>&gt; &gt;&gt; <br>&gt; &gt;&gt; -----Inline Attachment Follows-----<br>&gt; &gt;&gt; <br>&gt; &gt;&gt; _______________________________________________<br>&gt; &gt;&gt; NSRCA-discussion mailing list<br>&gt; &gt;&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt;&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; &gt; <br>&gt; &gt; <br>&gt; &gt; <br>&gt; &gt; _______________________________________________<br>&gt; &gt; NSRCA-discussion mailing list<br>&gt; &gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; &gt; <a rel="nofollow" target="_blank"
 href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; <br>&gt; _______________________________________________<br>&gt; NSRCA-discussion mailing list<br>&gt; <a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>&gt; <a rel="nofollow" target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>&gt; No virus found in this incoming message.<br>&gt; Checked by AVG - <a rel="nofollow" target="_blank" href="http://www.avg.com/">www.avg.com</a> <br>&gt; Version: 9.0.733 / Virus Database: 271.1.1/2715 - Release Date: 03/01/10<br>&gt; 14:34:00<br>&gt; <br>&gt; _______________________________________________<br>&gt; NSRCA-discussion mailing list<br>&gt; <a rel="nofollow"
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<p class="MsoNormal" style="margin-left: 0.5in;"><font face="Verdana" size="2"><span style="font-size: 10pt; font-family: Verdana;">_______________________________________________<br>NSRCA-discussion mailing list<br><a rel="nofollow" ymailto="mailto:NSRCA-discussion@lists.nsrca.org" target="_blank" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><span><a target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span></span></font></p></blockquote></div>
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<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">_______________________________________________<br>NSRCA-discussion mailing list<br>NSRCA-discussion@lists.nsrca.org<br><span><a target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span></span></font></p></blockquote></div><br><span>_______________________________________________ NSRCA-discussion mailing list NSRCA-discussion@lists.nsrca.org <a target="_blank" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span></div></div></div>
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