njswede
150cc
3/8".
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3DHS 58" Edge 540
- Thread starter zmonster97
- Start date
3/8".
farmerpilot
50cc
Im running 1/4 standoffs with 4s 4000 bat and it is pretty tail heavy. To the point it doesnt fly very well. Not to mention land!
Well, another 1/8" of standoffs isn't going to fix that. If you're running the 4315 an 4s, you need to push the battery all the way into the motor box. However, if you do that, you'll probably crack the motor box in your next snap (ask me how I know) or have the battery come loose due to insufficient velcro (ask me again how I know).
The fix is to epoxy a paint stirrer (the wooden kind you get for free at Home Depot or your local paint store) from the firewall back to what's supposed to be the battery area. Put heavy duty velcro on it and use a nice welcro strap. I also put depron foam along the side walls of the motor box to make the battery fit snugly. I haven't had a problem ever since. This puts my CG at around the wing tube with 4000mAh 4s GensAce and Zippy batteries. Balancing on the wing tube is a good starting point for your CG on this plane. If you put it more than a 1/4" behind the tube, it's a handful (as I'm sure you've noticed).
Well, another 1/8" of standoffs isn't going to fix that. If you're running the 4315 an 4s, you need to push the battery all the way into the motor box. However, if you do that, you'll probably crack the motor box in your next snap (ask me how I know) or have the battery come loose due to insufficient velcro (ask me again how I know).
The fix is to epoxy a paint stirrer (the wooden kind you get for free at Home Depot or your local paint store) from the firewall back to what's supposed to be the battery area. Put heavy duty velcro on it and use a nice welcro strap. I also put depron foam along the side walls of the motor box to make the battery fit snugly. I haven't had a problem ever since. This puts my CG at around the wing tube with 4000mAh 4s GensAce and Zippy batteries. Balancing on the wing tube is a good starting point for your CG on this plane. If you put it more than a 1/4" behind the tube, it's a handful (as I'm sure you've noticed).
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zmonster97
Member
I use 1/2" nylon spacers from lowes. Cheapest option.
farmerpilot
50cc
I have my battery all the way against the motor box now or almost since my motor wires keep it from going all the way and I haven't had a problem with the motor box breaking yet nor Velcro problems(not saying it won't happen yet if I keep on with it the same way) but I still have a major tail heavy plane. Ill try what your saying and see how it works...
SnowDog
Moderator
I was running a 6S setup with the Motrolfly 4315-480 and it was not bad...I was using 2800's (2x3S2800's) because that's what I had...if I did it again I would go with heavier batteries...can't imagine it with 4S batteries...no surprise that you are still tail heavy. The paint stick option is a good one; I ultimately had to add nose weight (about 1.5oz IIRC) to get it balanced, but I did not use the paint stick approach, which would have allowed my batteries to go farther forward.
RotorJockey
70cc twin V2
Started working on mine, today!
Got the wrecked box out, and the new box in.
Got the wrecked box out, and the new box in.
zmonster97
Member
Here's me flying my 58!
[video=youtube;ncsMCXm-g6Y]https://www.youtube.com/watch?v=ncsMCXm-g6Y&feature=youtube_gdata_player[/video]
[video=youtube;ncsMCXm-g6Y]https://www.youtube.com/watch?v=ncsMCXm-g6Y&feature=youtube_gdata_player[/video]
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