[NSRCA-discussion] Electric F3A Power System

[Earl Haury]

Urs

The Micro-Power E Logger 
(http://www.eagletreesystems.com/MicroPower/micro.htm) is worth 
consideration. It logs relevant E parameters and has the capability to log 
other things as well. At 17 grams and $70 it's a pretty good deal. A 
PC/laptop is needed to analyze the data. While I haven't used this 
particular unit, I've experience with Eagle Tree Systems other units and 
their excellent service.

Earl

----- Original Message ----- 
From: "Bärtschiger Urs" <baertschiger-tai at bluewin.ch>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Sunday, April 02, 2006 8:37 AM
Subject: [NSRCA-discussion] Electric F3A Power System


> Hi all,
>
> Many of you have quite a bit of experience with such power systems. We are
> in the finishing stages of our first electric F3A plane and start thinking
> of how we best observe and check our batteries, ESC and motor in order to
> prevent failures of these components.
> I woldn't want to go as far as Earl Haury does but sure would feel more
> comfortable if I knew what's going on inside our plane. Question: Is the
> famous Watt's Up Powerchecker a suitable instrument for this purpose (50A
> cont., 100A max.)? - If not, then what is suitable in order to find out 
> what
> is happening inside the power system in general and, for example, if I
> change props?
> (BTW I have a infrared temp gauge on order already.)
>
> TIA for your comments and recommendations.
>
> Urs
> NSRCA #3069
> AMA852733
>
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