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Old 05-06-2010, 03:25 PM   #29 (permalink)
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Join Date: Dec 2007


I have a Logo 600 with a Scorpion 4035 500kv motor, 11t mod 1 pinion, 12s lipo, Jive 80HV (using mode 11)
and Turnigy 6s 30c 3600 mah batteries. EC5 connectors.

I used a high quality microphone and Audacity 1.3 to calculate my headspeed today

I plotted graphs from the headspeed calculator vs my headspeed/throttle%.

The result is that I need to have 8% higher throttle curve to obtain the same headspeed as suggested in the calculator. Or said in another way. I get 100 rpm less than suggested in the calculator at any point.

For 2000 rpm I need 79% throttle and for 2200 rpm I need 98%.

My questions are then:
  • Is this because of I use Mode 11 on the Jive?
  • Is my 500 kv motor a much lower actual kv?
  • Should I just increase my throttle% till I get the right rpm in Audacity?
  • When changing between normal/idle 1/idle 2, do you have to land and spool up over again to get the right head speed (sounds strange to me, and not likely)
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Regards perfeet
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