Trex 250 setting up with DX8, Need some help

[Curryzz]

Hi,

Treated myself to a Trex 250 BNF with the 3G MRS.

I have bind the heli to my transmitter but I don't have access to a CD drive on my apple lap top.

I need to know the settings for my DX8 transmitter, I set it up how I thought however its not flyable so something is majorly wrong somewhere.

Still consider myself as a beginner so teach me to suck eggs please.

Thanks

Paul

[sunny_manku1985]

http://ms.align.com.tw/mpeg/manuals/...m/HEG3GX03.pdf

Page 14

[Curryzz]

http://ms.align.com.tw/mpeg/manuals/...m/HEG3GX03.pdf

Page 14

Thanks,

For some reason my Mac book won't open the page.

Any chance you could copy and paste it on here for me?

Would be very greatful

Paul

[sunny_manku1985]

image.jpg

[sunny_manku1985]

It's a good starting point you can fine tune it from there :-)

[Curryzz]

Ok so iv put the settings in and it seems that the tail wants to spin round, it's brand new so it's not the heli it must be my settings, what would cause the tail to not be holding?

Also when I put the power on it feels like the heli is pushing into the ground not wanting to go up? Something needs reversing?

[sunny_manku1985]

Check the first row of settings, a lot needs to be reversed in the servo menu

[Curryzz]

Iv double checked all of that, should the gyro be on inhibit or on?

[sunny_manku1985]

I don't use spektrum I'm afraid, maybe a dx8 user can chime in here?

[Curryzz]

Morning.

Does anybody have any set up advice I can check on the 250/DX8 as to why the heli isn't behaving as it should do?

It seems when I spoil up the heli it just spins round, tail doesn't hold. Once I let the throttle down the heli want to jump up in the air,down on the throttle is pulling the heli up?

I'm thinking about resetting my settings and starting again.

Paul

[GIXERMAN]

Morning.

Does anybody have any set up advice I can check on the 250/DX8 as to why the heli isn't behaving as it should do?

It seems when I spoil up the heli it just spins round, tail doesn't hold. Once I let the throttle down the heli want to jump up in the air,down on the throttle is pulling the heli up?

I'm thinking about resetting my settings and starting again.

Paul

heli spinning round, means the gyro is compensating the wrong way

heli jumping up in the air on spool down, pitch will need reversing as going the wrong way

[GIXERMAN]

From back off heli, fold top tail blade then push rudder to left. Tail blade should go towards boom.

from back of heli push tail of to the right and tail slider should go towards boom to counter act the torque

when you increase throttle the swash should go up

main blades they turn clockwise so fat edge going clockwise and thin edge trailing just in case there on wrong

[parksy]

Hey curryz, don't try to take off until you are completely happy you have set the heli up properly. Have you set throttle hold? Unplug two of the three wires to motor, push throttle stick up, does head rise up steadily? When you move right stick, does head tilt same way as stick movement? Have you gone through set up manual for 3g, heli and transmitter? I know it can be frustrating and slow going through manuals and they are not exactly written in plain English but you need to be sure everything is mechanically doing what it should be before getting off the ground and then finding it doesn't work

[Curryzz]

Thanks guys.

I am going to do these checks when I get home, will update you.

Yea the set up guide from align isn't really that clear and makes me think iv done something incorrect. Need to take my time this afternoon and try work it all out

Paul

[jimmyhorns]

If you can wait, you can pop it round at some point after christmas.

If you remember, you had similar problems with the AR7200Bx on your 300x, which was all caused by you having the FBL unit set up incorrectly in terms of correction direction. At that time we went through the correct correction direction for the swash, how to work out that the swash was moving in the right direction with collective to give the blades +ve pitch when you give +ve cyclic, and how to set up the tail.

Do try to be patient with this one, and not spool it up til you are happy with how it is correcting, or its just going to end up as another expensive repair bill.

In order to set it up properly 'one' needs to have an understanding of how the swash should tilt given a particular movement on the sticks, and how it should compensate to movement with no stick input. Its probably worth putting the heli to one side and going back over these again.