[NSRCA-discussion] Max volts

[krishlan fitzsimmons]

Couldn't we go to a higher voltage and regulate it back down? A contstant 42.56v would be nice!
 
Chris 







________________________________
From: Chad Northeast <chad at f3acanada.org>
To: nsrca-discussion at lists.nsrca.org
Sent: Sun, February 28, 2010 8:48:48 PM
Subject: Re: [NSRCA-discussion] Max volts

You would be at about 50% capacity at 3.85 ish volts/cell (resting open circuit), so unless you up the capacity you will have a pretty restricted flight time.

Chad

On 10-02-28 9:25 PM, Ron Van Putte wrote:
> That stirs a wild thought in my brain.  Fully charged packs don't stay at 4.2 volts per cell very long.  On the other hand, once the initial charge voltage is burned off by a constant load, the voltage loss curve "flattens out".  What if you put fully charged 6S and a 5S packs in series and "burn them down" to 3.869 volts per cell (a total of 42.56 volts for an 11-cell pack) so they were legal for use.  Would the voltage of this depleted 11S pack be higher than a fully charged 10S pack at the end of a typical flight?  If the end-of-flight voltage might be significantly higher for the 11S pack vice a 10S pack, it would be worth investigating, even considering the extra weight of the additional cell.  Come on you electronic gurus, show me where I'm wrong.
> 
> Ron Van Putte
> 
> On Feb 28, 2010, at 10:00 PM, James Oddino wrote:
> 
>> What comes after ...?  Does it specify a load or any other conditions?  Is it measured during the noise test and have a minimum value?
>> 
>> Just stirring the pot, Jim O
>> 
>> 
>> On Feb 28, 2010, at 5:21 PM, John Fuqua wrote:
>> 
>>> No its not (assuming we are talking RC Aerobatics).  Try page RCA-2 para 4.1
>>> which states "Electrically-powered model aircraft are limited to a maximum
>>> of 42.56 volts.."
>>> 
>>> -----Original Message-----
>>> From: nsrca-discussion-bounces at lists.nsrca.org
>>> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Ron Van Putte
>>> Sent: Sunday, February 28, 2010 7:07 PM
>>> To: General pattern discussion
>>> Subject: Re: [NSRCA-discussion] Max volts
>>> 
>>> It's in the general rules, not in the R/C section.
>>> 
>>> 
>>> On Feb 28, 2010, at 6:50 PM, Jim Quinn wrote:
>>> 
>>>> Where can I find the rule for max volts?
>>>> 
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