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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Not even a switcher is 100% efficient!</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<p><b><i><font size=4 color=navy face="Brush Script MT"><span style='font-size:
13.5pt;font-family:"Brush Script MT";color:navy;font-weight:bold;font-style:
italic'>Jay Marshall</span></font></i></b><font color=navy><span
style='color:navy'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>John Pavlick<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>March 01, 2010</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>10:51 AM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>General pattern
discussion</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Max volts</span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Not if it was a switching regulator. </span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>John Pavlick<br>
<br>
--- On <b><span style='font-weight:bold'>Mon, 3/1/10, Jay Marshall <i><span
style='font-style:italic'><lightfoot@sc.rr.com></span></i></span></b>
wrote:</span></font></p>
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From: Jay Marshall <lightfoot@sc.rr.com><br>
Subject: Re: [NSRCA-discussion] Max volts<br>
To: "'General pattern discussion'"
<nsrca-discussion@lists.nsrca.org><br>
Date: Monday, March 1, 2010, 10:33 AM</span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The motor current x voltage drop in the regulator =
wasted heat<br>
<br>
Jay Marshall<br>
<br>
-----Original Message-----<br>
From: <a
href="http://us.mc805.mail.yahoo.com/mc/compose?to=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="http://us.mc805.mail.yahoo.com/mc/compose?to=nsrca-discussion-bounces@lists.nsrca.org"
ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>]
On Behalf Of Ron Van Putte<br>
Sent: Monday, March 01, 2010 10:30 AM<br>
To: General pattern discussion<br>
Subject: Re: [NSRCA-discussion] Max volts<br>
<br>
Never thought of that, but wouldn't the energy to regulate down the <br>
42.56 volts just be dumped as heat?<br>
<br>
Ron<br>
<br>
On Mar 1, 2010, at 8:54 AM, krishlan fitzsimmons wrote:<br>
<br>
> Couldn't we go to a higher voltage and regulate it back down? A <br>
> contstant 42.56v would be nice!<br>
><br>
> Chris<br>
><br>
><br>
><br>
><br>
><br>
> From: Chad Northeast <<a
href="http://us.mc805.mail.yahoo.com/mc/compose?to=chad@f3acanada.org"
ymailto="mailto:chad@f3acanada.org">chad@f3acanada.org</a>><br>
> To: <a
href="http://us.mc805.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
ymailto="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>
> Sent: Sun, February 28, 2010 8:48:48 PM<br>
> Subject: Re: [NSRCA-discussion] Max volts<br>
><br>
> You would be at about 50% capacity at 3.85 ish volts/cell (resting
<br>
> open circuit), so unless you up the capacity you will have a
pretty <br>
> restricted flight time.<br>
><br>
> Chad<br>
><br>
> On 10-02-28 9:25 PM, Ron Van Putte wrote:<br>
> > That stirs a wild thought in my brain. Fully charged packs
don't <br>
> stay at 4.2 volts per cell very long. On the other hand, once
the <br>
> initial charge voltage is burned off by a constant load, the <br>
> voltage loss curve "flattens out". What if you put fully
charged <br>
> 6S and a 5S packs in series and "burn them down" to 3.869
volts per <br>
> cell (a total of 42.56 volts for an 11-cell pack) so they were <br>
> legal for use. Would the voltage of this depleted 11S pack
be <br>
> higher than a fully charged 10S pack at the end of a typical <br>
> flight? If the end-of-flight voltage might be significantly
higher <br>
> for the 11S pack vice a 10S pack, it would be worth investigating,
<br>
> even considering the extra weight of the additional cell. Come
on <br>
> you electronic gurus, show me where I'm wrong.<br>
> ><br>
> > Ron Van Putte<br>
> ><br>
> > On Feb 28, 2010, at 10:00 PM, James Oddino wrote:<br>
> ><br>
> >> What comes after ...? Does it specify a load or any
other <br>
> conditions? Is it measured during the noise test and have a <br>
> minimum value?<br>
> >><br>
> >> Just stirring the pot, Jim O<br>
> >><br>
> >><br>
> >> On Feb 28, 2010, at 5:21 PM, John Fuqua wrote:<br>
> >><br>
> >>> No its not (assuming we are talking RC Aerobatics).
Try page <br>
> RCA-2 para 4.1<br>
> >>> which states "Electrically-powered model aircraft are
limited <br>
> to a maximum<br>
> >>> of 42.56 volts.."<br>
> >>><br>
> >>> -----Original Message-----<br>
> >>> From: <a
href="http://us.mc805.mail.yahoo.com/mc/compose?to=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="http://us.mc805.mail.yahoo.com/mc/compose?to=nsrca-discussion-bounces@lists.nsrca.org"
ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>]
On Behalf Of <br>
> Ron Van Putte<br>
> >>> Sent: Sunday, February 28, 2010 7:07 PM<br>
> >>> To: General pattern discussion<br>
> >>> Subject: Re: [NSRCA-discussion] Max volts<br>
> >>><br>
> >>> It's in the general rules, not in the R/C section.<br>
> >>><br>
> >>><br>
> >>> On Feb 28, 2010, at 6:50 PM, Jim Quinn wrote:<br>
> >>><br>
> >>>> Where can I find the rule for max volts?<br>
> >>>><br>
> >>>> _______________________________________________<br>
> >>>> NSRCA-discussion mailing list<br>
> >>>> <a
href="http://us.mc805.mail.yahoo.com/mc/compose?to=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
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ymailto="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
> >>> <a
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target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
> >>><br>
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ymailto="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
> >>> <a
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> >><br>
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ymailto="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
> >> <a
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> ><br>
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