[NSRCA-discussion] Electric Data Logger

[Fred Huber]

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 
  To: 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 
      To: NSRCA Mailing List 
      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

      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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