TomC
Veteran
Location: Gold Coast, Queensland, Australia
My Posts This: Topic Forum | kennethw,
I have used Jazz escs with Jr and Dx7 radio for a long time. I generally find that my Jazz escs govenor headspeed max's out at 85-88% throttle setting.
I usually start up in idleup 2 with a flat 100% throttle curve, let the rpm settle (in your case I would calculate it to be ~2100 rpm), then switch to Idleup 1 at say 75%. I find that this gives much more consistant results, esp when you are using different battery packs. I would expect that you would end up with a much higher setting than 57% to drop 200rpm HS, maybe something like 70-75%. You also might want to recalibrate your esc, by the usual stick method (mode 1 then mode 4) or by using the fixed endpoints with the prog card.
Also, your runtimes (4.5 min) seem pretty low for 1930 HS. I suspect your motor is the problem, and/or your heli mechanics are too tight (gear mesh, belt tension, etc).
One way to improve these runtimes is to get a better, more efficient motor and go to 10s 3700-4000 mahr packs with a Kontronik tango 45-08 motor (and say a 12-13t helical pinion). If you dialed down your hs to ~1800-1850, you would probably get at least 7.5 min runtimes.
However, if you want to stick with 6s, then maybe consider a Tango 45-10 motor, geared to ~170t straight main/15t pinion. I think you could dial this 6s combo down to ~1800-1850 and get at least 6 min runtimes.
Hope this helps.
Cheers,
TomC
CX2 2s
Logo10- 3D 5s
Trex600 10s HC-Rigid
2x Ion-x, 1x15s DS, 1x10s SS |
