ORIGINAL: Johnny_Zero
Thanks for the battery tips Heliko, I didn't know some of what you talked about. Sometimes the LHS isn't so forthcomming with all the in's and out's of this hobby.
I can try and explain what you missed if you'd like.
I did some weight checks and if I move the battery back under the main frame behind the motor the Heli balances just fine with a battery up front...so maybe 3 to 4 more OZ of weight? I can try it and see what it takes to get the Heli light and go from there. I am a little worried about the weight but it seems like so little. I will let you know how it goes.
That's true, but don't forget the CG has 3 axis. Even if the left/right (pitch axis) and for/aft (roll axis) CG stay unchanged with two packs the CG will travel to a lower position on the vertcal axis. These pics are crude, but should help to explain what I mean. This isn't going to be a problem with hovering or some light flying, but if you try any kind of steep rolls or pitches or 3D flight you'll notice the helis resistance to your commands.
BTW my vertcal axis CG figures on the pic are by no means accurate. I'm just using the pic to illustrate my point.