[NSRCA-discussion] Electric Data Logger

[AtwoodDon at aol.com]

it's on the market.  I got mine thru _www.Blackbirdrc.com_ 
(http://www.Blackbirdrc.com) 
 
You do need the optional Spin programming box if you want to be able to  read 
the data from the controller.  Works very much like the Hacker  programming 
boxes except it also reads the stored performance data.
 
The controller holds the data until the next time you arm the controller,  
then it resets the previous flights data and stores the new flight.
 
Don
 
In a message dated 12/3/2006 3:06:07 P.M. Pacific Standard Time,  
fhhuber at clearwire.net writes:

That new Jeti controller on the market or  just in "Beta" trials?  
 
Sounds like what I would want for my next  ESC.  I don't need as much data as 
someone doing  Masters/FAI...   I just need enough to make sure I'm not  
overstressing the motor/ESC/Battery systems.

----- Original Message ----- 
From:  _AtwoodDon at aol.com_ (mailto:AtwoodDon at aol.com)  
To: _nsrca-discussion at lists.nsrca.org_ 
(mailto:nsrca-discussion at lists.nsrca.org)   
Sent: Sunday, December 03, 2006 1:49  PM
Subject: Re: [NSRCA-discussion]  Electric Data Logger



I have been testing one of the new Jeti Spin 75 controllers and it  records 
max rpm, max temp of controller, max amps, min voltage and a few  other things. 
 Works well, easy to use and doesn't weigh anymore than  it's predecessor, 
the Jeti 77.  It doesn't give you any ability to see  continuous values for the 
entire flight like the Eagle Tree, just minimums  and maximums and controller 
temps, flight times, etc.
 
Don
 
In a message dated 12/3/2006 11:28:51 A.M. Pacific Standard Time,  
joddino at socal.rr.com writes:

I've got quite a bit of in-flight data from  the full blown data logger with 
telemetry.  It is an excellent way of  keeping track of your batteries 
especially on a new plane.  I had a  helper watching the mAh used while I was flying 
so I wouldn't exceed 80%  of the capacity.  After a number of flights I found 
the consumption  was very consistent from flight to flight and I eventually 
could  see I could depend on time of flight to predict battery usage.   The peak 
current is normally slightly lower than that during the run-up on  the ground 
before taking off.  The current graphs are very  interesting.  I find I'm 
only over 40 amps for about 8 seconds at a  time and then well below 40 for the 
next 10 to 30 seconds.  The  average Watts during a flight is about 900 so the 
motor and ESC stay quite  cool. 
 
Jim O 
 
 
----- Original Message ----- 

From:  _Ed White_ (mailto:edvwhite at sbcglobal.net)  
To: _NSRCA Mailing List_ (mailto:nsrca-discussion at lists.nsrca.org)   
Sent: Sunday, December 03, 2006  10:22 AM
Subject: [NSRCA-discussion]  Electric Data Logger


Anybody tried this on their electrics?  

_http://www.eagletreesystems.com/MicroPower/micro.htm_ 
(http://www.eagletreesystems.com/MicroPower/micro.htm) 

Seems  like a good way to track how much of your batteries you are using in  
flight.  I'm also wodering about if there is a significant  difference between 
current measured on the ground and in the  air.

Ed
 
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