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Miniature Aircraft Whiplash & Furion 6
› Furion 450 kontronic 40/ NEU 1107 1.5y 3850kv 3s anyone?
04-24-2011 12:42 AM  7 years agoPost 1
npsk8ter

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Joliet, Illinois USA

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I'm tryin to set a headspeed and with a 13t pinion, my headspeed is screaming!!! I'm tryin to tach it and am gettin around 3400rpm at 25% throttle!!!!! Really???? After 3500rpm it starts a high pitched sound like it's bout to rip apart. Any ideas? What's an ideal headspeed for 3s on this heli since the manual sucks!!!

T-Rex 700n vbar, Logo 600 vbar, Rave 450 350mm 6s beastX, Devil 480 6s vbar... Need I say more???

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04-24-2011 02:03 AM  7 years agoPost 2
RobMcQuillen

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Rochester, NY

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That noise your hearing at 3500rpm is most likely the tail. Don't run it like that. You run the risk of shearing the tail bolts. A lot of guys are running there Furion at 3400... That works well. Just see what you like best. 2900-3450 is where you want to stay with a stock setup. This should give you pretty good flight time with 3s 2200 packs.

If that motor is 3850kv than a 13t pinion is ideal.

3850kv x 11.5v=44275Motor rpm/(150t main gear/13 pinion)
Head speed at 100% with no efficiency loss is 3837.16667
Realistically you could only hold 3500-3600 consistently through the flight.

If you govern that to say 3300 or 3400RPM you should be in good shape.

Rob

Rob McQuillen

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04-24-2011 02:12 AM  7 years agoPost 3
npsk8ter

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Joliet, Illinois USA

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Well for some reason I had to turn down the throttle curve all the way to 25% to get around 3400rpm. Sumthin don't seem right bein that low of curve to get the headspeed down.

T-Rex 700n vbar, Logo 600 vbar, Rave 450 350mm 6s beastX, Devil 480 6s vbar... Need I say more???

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04-24-2011 02:16 AM  7 years agoPost 4
npsk8ter

rrApprentice

Joliet, Illinois USA

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Rob
Are you familiar with the kontronics 40 esc and NEU motor? Cud I possibly hav a pole setting or sumthin set wrong in the esc. It worked fine on a viper 3550 with a 13t

T-Rex 700n vbar, Logo 600 vbar, Rave 450 350mm 6s beastX, Devil 480 6s vbar... Need I say more???

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04-24-2011 02:21 AM  7 years agoPost 5
RobMcQuillen

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Rochester, NY

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I'll be to honest to say that I have no experience with Kontronics or Neu. You must have something off because It should be no issue to get 3400... Maybe 60-80%??? I would check over your settings.

The motor is a 4 pole,Esc timing is 5-10Deg, and ESC switching freq is 11-13kHz
Rob

Rob McQuillen

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04-24-2011 02:30 AM  7 years agoPost 6
npsk8ter

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Joliet, Illinois USA

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It honestly scares me! Cudnt even get to 50% throttle with the crazy sound startin. Tryin to shoot for about 3200 and shud suit my style. Def confused tho!

T-Rex 700n vbar, Logo 600 vbar, Rave 450 350mm 6s beastX, Devil 480 6s vbar... Need I say more???

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Miniature Aircraft Whiplash & Furion 6
› Furion 450 kontronic 40/ NEU 1107 1.5y 3850kv 3s anyone?
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