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Atom 500 Compass Atom 500 Model Helicopter Discussion


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Old 06-23-2017, 07:58 AM   #1 (permalink)
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Default C.G. Question

I checked my Atom 500 C.G. last night with battery and canopy on, it was head heavy, not tail. Is this typical to this heli ? If not, any suggestion to move C.G backward ?
  • Battery in use is Zippy 2700mAh 35C battery (477 g)
  • HW 80A ESC is mounted on the right side, vertically, behind the motor
  • Full size tail servo in use
Thanks,


Ching-Ho Cheng
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Old 06-23-2017, 10:44 PM   #2 (permalink)
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I was using a 3300 mah lipo on my Atom 500. It was head heavy so I moved the ESC as far backwards as I could and also mounted a Scorpion BUG near the boom. That solved my cg problems.

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Old 06-23-2017, 11:35 PM   #3 (permalink)
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Thanks for the suggestion. I will move ESC backward first....
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Nano CPx, Hirobo Quark
250 SE, Pro Upper Frame, Talon25, KDE, KST215, DS95i, Mini Vbar
450 Pro (6s), KDE, Lynx, Tarot, RJX, YEP40, KST215 & 515, SK540
465 (6s), Align DFC, HW50AV3, KST315 & 8910A+, SK720BE
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Old 06-24-2017, 05:55 PM   #4 (permalink)
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I moved ESC backward until C.G. is correct. Here is the final ESC location.



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Nano CPx, Hirobo Quark
250 SE, Pro Upper Frame, Talon25, KDE, KST215, DS95i, Mini Vbar
450 Pro (6s), KDE, Lynx, Tarot, RJX, YEP40, KST215 & 515, SK540
465 (6s), Align DFC, HW50AV3, KST315 & 8910A+, SK720BE
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Old 06-24-2017, 07:30 PM   #5 (permalink)
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Looks good!
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Old 06-24-2017, 10:54 PM   #6 (permalink)
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Thank you. I will try to maiden it tomorrow morning if weather permit.
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Nano CPx, Hirobo Quark
250 SE, Pro Upper Frame, Talon25, KDE, KST215, DS95i, Mini Vbar
450 Pro (6s), KDE, Lynx, Tarot, RJX, YEP40, KST215 & 515, SK540
465 (6s), Align DFC, HW50AV3, KST315 & 8910A+, SK720BE
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