granted, I didn't spend a lot of time searching for forums, but hoping someone can help.

Love my CX2 - but lately, my forward motion is null. I can push full forward, the servo works, but it goes a short distance, then stalls and goes into a vertical toilet bowl. Upwards and backward then down, only to slowly move forward again. What is this all about??? I have new shafts purchased incase one is bent. I replaced the flybar, and that didn't solve the problem.

so - are my shafts bent? is my 3-in-1 kaput? any advice would be helpful, thanks!

If this is a fairly new helicopter, it my just be getting broken in. The more freely the flybar works, the more of the pendulum effect you will see. The bad news is that it's entirely normal for the CX2 to do this. The good news is that we have all been through it and there are ways around it - from mild to wild.
I'm sure that this post will bring The Collective out to play and advise all sorts of after market goodies. That's what we do and we thoroughly enjoy it.
To get you started with these little helicopters, this link may make a good read. It will get your heli set up well and give you a better understanding of how it all works. Then talk with the forum members and enjoy!
[link=http://www.heli-wiki.com/mediawiki/index.php/HOWTO_Wiki_Overall_CX_and_CX2_Setup]Heli Setup[/link]

awesome - I'll review that wiki link. I think its fairly broke-in, I've had it for over a month and fly it a lot. I didn't notice this effect a few weeks ago. I do have some replacement parts and figure I should start adding them to see if that is the case. Always have the originals to start with.

But, I only get maybe 7 feet of forward motion before it stalls out and heads in an upward loop... its killing me!

Creatify--

Has the CX2 been wrecked recently ? Do you fly outside or inside ? Does the heli balance perfect ? You can adjust the battery to help... Make sure your blades are balanced, and are tracking correctly. Also on your flybar it should be move quite freely. Flick it on one end, and it should flick back and forth 2-3 times...Sometimes, which I do everytime, ya need to use some light sandpaper to sand the "balls" on the flybar to get rid of the little extra flashing burrs that are on there. You would barely see them, but it counts for very smooth transitions of the flybar assembly.

For advanced users for more forward flight we shorten our flybars, and move our servo linkage rods out a hole or two. Gives more authority and nose in digs for a little bit better outside flights. Also you can move the batt forward just a tad to make the nose a little heavier to aid in forward capabilities...Remember stock, the heli is set up for indoors, and mainly for hovering, as they have in mind that a beginner is at the controllers. As you get better, and understand the CX2 more you can tweak it a little to obtain a little more performance (forward flight) but in return you'll give up a little stability, but you won't notice as your better than when ya started anyway (hopefully...Lol..)

But yeah, best bet would be to read Soloboss's guide and you'll then be certified, everything I mentioned is in there...But we're all still here waiting and willing to help. Seems you might have got lucky and came to the right place ...

Good luck...!


-- Jeff

Thanks for all the tips - I've done most of those items - the flash removal, etc. etc. And after reading your posts and some others - I'm kinda thinking I'm asking for too much from my CX2 - maybe time to move up to something with a tail rotor.

But, one other question on balancing: when my battery is out of the CX2, and I balance it by hand by the flybar - the flybar being perpendicular to the fuselage - its definitely nose heavy - and even more so with the battery. In the beginning, I added weight to the tail to help it balance, then I screwed the forward flight servo arm in a turn so it would fly more stable. What's the best way to balance it without the battery - move the 3-in-1 and receivers back closer to the motors?

The only balance that counts is flight ready. You need to balance it with the battery mounted.
That way you can adjust the cg by moving the battery forward/aft.

Yes, try adjusting your COG by moving the pack back and forth until you can keep it level. If you can't fix it that way, then use trims first and then change the length of your elevator servo arm to compensate.

Creatify--

I've tweaked with mine so much it balances level with the batt out...But what matters like MNcowboy suggested, is when the batt is in the heli. I have moved my 4 in 1 back on the plate towards the motor's and also made my battery mount custom for bigger batts and easier access to the battery for installing and such. I use industrial strength velcro for securing it, and it takes a second now to move it forward or aft to adjust the CG...Having it slightly nose heavy, will help for outside flights as it has for me, when a challenging little bit of wind is blowing around...Lol.. Whatever works for ya..

Good luck,


-- Jeff

the cx2, because its a coaxial, will always go forward then stop because, as soloboss says, the lower blades surprise the flybar, but then the flybar catches up and the heli returns to a hover regardless of the input - make a soloboss modded flybar and give it a try, nice extended forward flight

another thing is, all heli's rise if you fly forward into the wind - which is why we keep a small amount of negative pitch (blades angled to make the heli push down instead of pull up) on our cp single rotors so we can get them back down on windy days - if you feel you are ready for a bigger challenge, pm michael at ushobbysupply about a walkera 4#4 fixed pitch single rotor


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