<div>Ron,</div> <div> </div> <div>I've only been flying electric for only two months so be sceptical of anything that I have to say. I have a setup very similar to yours and I had that same problem. </div> <div> </div> <div>Here's my setup:</div> <div> Dualsky 6360 - 11T</div> <div> Jeti Opto 90 Advance Plus ESC</div> <div> APC 19X13 E</div> <div> </div> <div>My solution was to set my ESC to "hard timing" to eliminate the chattering.</div> <div> </div> <div>I'm not familar with the programming card so "OUTRUNNER timing" may be the same as</div> <div>"hard timing" in which case in those immortal words of Gilda Radner..."never mind"</div> <div> </div> <div>Hopefully, someone more knowledgable than me post a solution.</div> <div> </div> <div>Good Luck,</div> <div> </div> <div>Terry<BR><BR><B><I>Ron Van Putte <vanputte@cox.net></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT:
5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">I have converted a World Models Spot-On 120 for electric-power. The <BR>motor is a Dualsky 6350 - 12T (2000 watt), swinging an APC 18x12 E <BR>prop. The speed control is a Jeti Opto 90 Advance. Using the Jeti <BR>programming card, I set the timing for OUTRUNNER, the brake for OFF, <BR>the cutoff voltage to HIGH, the cutoff type to SLOW DOWN and the <BR>throttle curve to LINEAR. I am using a Futaba 9Z transmitter, with <BR>the throttle throw initially set from -100% to +100% as indicated in <BR>the Jeti instructions.<BR><BR>When the throttle is advanced, RPM builds up normally, but at about <BR>60% of throttle stick position, the motor 'chatters' and I have to <BR>shut it down. If I don't do anything other than reduce the high <BR>throttle in ATR from +100% to +80%, the motor comes smoothly up to <BR>maximum RPM.<BR><BR>What's going on?<BR><BR>Ron VP<BR>_______________________________________________<BR>NSRCA-discussion
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