Tarot ZYX, ZYX-S & CopterX 3X-1000 Advanced Tuning and Troubleshooting Guide

[Dr. M]

Originally Posted by lcc014

Dr.M,

You guide mentioned to set the correct amount of tail pitch in rate mode during hover.

1) What mode should I use for this setup - normal, IU1 or IU2 ?
2) If I setup the tail pitch in normal, heli will "spin" again in IU1 or IU2. Will this be a problem ?

Thanks,

Use the highest head speed you plan to fly when you do the tail setup in Rate mode (IU2?). I realize it cannot be perfect at all HS, but it's safer to make sure it works correctly under the most demanding conditions. Proper setup of the pitch precompensation will take care of the rest.

[Dr. M]

Originally Posted by LM321

Mr. M

one more question... What is the typical range for the cyclic gain setting?

This depends on heli design, servos, mechanical setup, and flying style; there's no typical setting. In the end, it's all about blade pitch: I normally shoot for 9* cyclic range.

[lcc014]

Originally Posted by Dr. M

Use the highest head speed you plan to fly when you do the tail setup in Rate mode (IU2?). I realize it cannot be perfect at all HS, but it's safer to make sure it works correctly under the most demanding conditions. Proper setup of the pitch precompensation will take care of the rest.

Dr.M,

Thank you.

[raptornut1]

Help having trouble getting 120 ccpm set right.... guys Im using a DX7 radio and having trouble on which servo channel to reverse in the fbl program and which ones to rev in radio...I had everything working when just using rx only now everything jacked up..

[Dr. M]

Originally Posted by raptornut1

Help having trouble getting 120 ccpm set right.... guys Im using a DX7 radio and having trouble on which servo channel to reverse in the fbl program and which ones to rev in radio...I had everything working when just using rx only now everything jacked up..

Set your radio swash type to 90° 1-servo (no CCPM mixing). Leave all channels on normal at first and look at how the swashplate reacts when you move the sticks. Then you'll need to reverse either individual servos on the gyro, or control axes on the Tx to make everything react correctly to inputs and gyro compensation. It's a purely empirical process, there's no prescribed method really.

[raptornut1]

Thanks Dr,M

[raptornut1]

Ok Ive got another question,can I speed up the gyro reaction time when I tilt the heli side to side and front and back...My swash plate corrects it self very slowly?????

[Dr. M]

The Mild 3D preset shiuld be plenty fast. Correction speed is usually dictated by the Gain and PID settings.

[raptornut1]

Dr.M having trouble figuring out where and how to mount zyx and rx properly (HK600gt)..Would like to mount on the rear on top of tail boom block (that mounts in frame) but having trouble with rx mounting (short wiring to rx)....Does zyx do better mounted flat or on side of heli?????

[raptornut1]

Ok 1 more question,since I fly basic sport style with loops and rolls would my zyx-s unit be ok or would I also need the 4.0 version....Thanks Darrell

[Dr. M]

I have a feeling the zyx does better when mounted flat, but I don't have any direct experience to relate with the side mounting.

[raptornut1]

Ok will mount flat and work out the rx thing......Thats how I set it up when programming the unit....Getting close to flying now......Thanks for the help Dr.M

[pinguin]

Originally Posted by raptornut1

Ok Ive got another question,can I speed up the gyro reaction time when I tilt the heli side to side and front and back...My swash plate corrects it self very slowly?????

That's normal on any FBL system. It only happen on workbench, but on real life, it will be different.

[lent57]

Originally Posted by Dr. M

I have a feeling the zyx does better when mounted flat, but I don't have any direct experience to relate with the side mounting.

Dr. M, Have you any suggestions or thoughts on the flip the tail grips mod suggested by finless Bob? He indicated better tail authority in rate mode. I was thinking about trying this mod but was wondering how it would react with the zyx setup? thanks

Len

[Dr. M]

Originally Posted by lent57

Dr. M, Have you any suggestions or thoughts on the flip the tail grips mod suggested by finless Bob? He indicated better tail authority in rate mode. I was thinking about trying this mod but was wondering how it would react with the zyx setup? thanks

Len

It would work well, provided you've correctly set up the tail input and compensation direction. However, IMHO the KDE method is easier and seems to have more consistent results: https://www.helifreak.com/showthread.php?t=142911

On another note, I cannot believe Align hasn't come up with a fix, knowing about this problem on the 450 Pro for at least 4 years.

[Mikej]

Originally Posted by Dr. M

On another note, I cannot believe Align hasn't come up with a fix, knowing about this problem on the 450 Pro for at least 4 years.

Have you seen these http://www.align-trex.co.uk/tail-pit...183.html?ref=1 they change the tail geometry to give you the 8 degrees at 90 degrees

[Dr. M]

Originally Posted by Mikej

Have you seen these http://www.align-trex.co.uk/tail-pit...183.html?ref=1 they change the tail geometry to give you the 8 degrees at 90 degrees

Interesting. And no, I was not aware of those. As you can tell from my signature, my fleet is unAlign-ed .

If you're wondering, the CopterX Black Angel is not a clone. It's a CopterX design inspired largely by the Beam E4.

[lent57]

Originally Posted by Mikej

Have you seen these http://www.align-trex.co.uk/tail-pit...183.html?ref=1 they change the tail geometry to give you the 8 degrees at 90 degrees

Thank you, this might be less of a hassle.

[DerClown]

After reading this Instructions I don't get it... What Gain am I adjusting with Gear channel in my Transmitter ? Or is it another separate (I believe the Fifth tail gain) ?
Thanks.

[Dr. M]

Originally Posted by DerClown

After reading this Instructions I don't get it... What Gain am I adjusting with Gear channel in my Transmitter ? Or is it another separate (I believe the Fifth tail gain) ?
Thanks.

Tx Gear channel modifies the tail Total gain. Think of it as a scaling factor for the gains you set on the gyro.