[NSRCA-discussion] Electric pattern recommended equipment

[Nat Penton]

Tom, the plastic sheaths on TP 5300s can be removed without any problems. 
This greatly increases heat transfer and saves some weight, but it is 
nowhere near a total solution.      Nat

----- Original Message ----- 
From: "Tom Simes" <simestd at netexpress.com>
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Monday, September 08, 2008 5:24 PM
Subject: Re: [NSRCA-discussion] Electric pattern recommended equipment


> On Mon, 8 Sep 2008 17:08:25 -0500
> "Nat Penton" <natpenton at centurytel.net> wrote:
>
>> Heat is public enemy number 1 as far as Lipo battery life is
>> concerned. If you can keep cell temps below 150F you can expect 150
>> plus cycles.
>>
>> I don't have all the answers as to how to handle the cooling in the
>> widebodies.    Nat
>
> Conformal external batteries or heat sink plate?  The fins could serve
> double duty as boundary layer control...  Ok, maybe I'm a little over
> caffeinated today ;)  Still though, imagine a battery retention
> mechanism where the cells intermeshed with heatsink fins to both
> secure the pack and transfer the heat.  Sure would beat some of the odd
> phase change potting compound schemes used in missles and other "one
> way" aircraft.
>
> http://en.wikipedia.org/wiki/Conformal_fuel_tank
>
> Tom
>
> ======================================================================
>   "Z-80 system stack overflow.  Shut 'er down Scotty, the system's
>         sucking mud" - Error message on TRS 80 Model-16B
>
> Tom Simes                                       simestd at netexpress.com
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