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Old Oct 13, 2012, 12:06 PM
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United States, MI, Grand Traverse
Joined Oct 2008
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Quote:
Originally Posted by Airman74 View Post
I just ordered 5 of these for my Sbach 3D. Do they really make that much of a difference compared to the E flite 200 mah 25c??
This new Sbach is quickly becoming my new Fav !!! Completey lost interest in my beast 3D,,, anyone Wana buy a BEAST 3d ??? :-)
On first few flights of Sbach 3D set timer at 4:00 min,, put back on charger they only took about 100 mah to fill again, waaay better than my beast. IMHO this new Sbach waaaaay better flying than beast 3D,,, others may not agree with me on this one I realize. So any takers for a Beast 3D never been crashed for $50??
If it's not sold I'll take it!!

Quote:
Originally Posted by jpt1205 View Post
You need to use this adapter, or solder your own using just the two power leads and you can charge/balance with theincluded 2S JST-XH lead. E-Flite UMX= JST-PH (combined power/balance lead)

http://www.rc-connectors.com/index.p...teektdaoekt5f2
Any adapter will reduce power. It is not worth it. Either cut the plug off the plane and install your correct plug or get batteries with the UMX plug.

Quote:
Originally Posted by StarHopper44 View Post
Hi all; Re the Sbach 342 non AS3X version:
HK-USA came thru for me & my 180 NanoTechs arrived in this morning's mail; charging 'em up right now & getting things ship-shape hoping to maiden tomorrow.

This sounds nuts & I've balanced planes literally hundreds of times, so not a complete noob at it, awright?
First, I very precisely measured & placed a tiny silver dot at the manual's prescribed 29mm CG point behind LE @ root.

Then I started as the manual prescribes, trying to locate the LiPo so's to balance on that point.
Thing is, I simply cannot get the plane to balance ANYWHERE!!! Battery full forward comes closest, but is still tail-heavy. Wires to front, or to rear, no diff. I've been full-forward to full-rearward (but there comes a point where you KNOW it'll just be more tailheavy, & dumb to try....but I did anyway.) Even tried a different LiPo (got 3)....same-o, same-o. OK, you'd think, just start adding some weight in small increments.

But first, I thought I'd see where it is balancing before writing this, by shifting my jig's balancing points forward (& rearward as it turned out).
But it's crazy....the. dang. thing. just. will. not. BALANCE! I've never seen anything like it! My jig holds 2 upright new pencils; trimmed down erasers are the resting poiints. I get it very close to balancing - very slightly tail-heavy....move the plane - one side actually - about 0.5mm rearward, & the plane falls forward hard & off the jig, not teetering a bit before beginning to fall as I usually see when 'getting close'.

I even reduced the resting point size by using the lead points of two other pencils, trying to get the location down to a fine point (no pun intended) So HELP me, moving the width of one pencil point makes it fall off the opposite direction it did before the adjustment. Repeatedly Every time! Oh - and I'm inside; no fans, nothing....dead still air. I'm not even breathing on it!! IT'S CRAZY WEIRD!

This isn't just a one-shot-&-give up thing either -- I've been going at it for well over a half hour now....and it's about to drive me nuts! I've searched this forum & not found anything definitive. So, in desperation I finally decided to ask -- anyone else get these kinda results? & for gawdssakes, what did you do to fix it?????
Few things:
First 29mm is WAY nose heavy on this plane. 34, is a much better starting point. 36-38 is true neutral balance point.

second these things are so small that the balance jigs are tough to get it to balance. Small disturbances will cause large movements like you described even when you are very close. It is just the nature of this small of a scale.

Finally the Sbach is very resilient to being a little out of balance It will fly with the battery anywhere in the tray. Though I will say that 90% of the time putting the battery all the way back in the tray will be the best way to start flying it. Most of us that have the V1 have carved out foam from the back of the tray to get it to balance better.

-Brian
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Last edited by kalmon; Oct 13, 2012 at 12:19 PM.
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