[NSRCA-discussion] Max volts

[Chad Northeast]

They always check the battery voltage, I am not sure you could convince them to check a regulated voltage :)

If so then I think you could build this into an ESC directly to only feed the motor 42.56 volts.

Chad

----- Original Message -----
From: krishlan fitzsimmons <homeremodeling2003 at yahoo.com>
Date: Monday, March 1, 2010 7:55 am
Subject: Re: [NSRCA-discussion] Max volts
To: chad at f3acanada.org, General pattern discussion <nsrca-discussion at lists.nsrca.org>

> 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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