slight wag, fast backward flight

[adamf]

hi all
finally maidened the 3gx 450v2 yesterday, i was quite impressed flew quite nice out the box, just a small turn on the ele pot, the only problem is a small tail wag in fast backwards flight. i am going to have a play with it first chance i get, just wondering if anybody might have any ideas as to cause or a fix
adamf

[johnsandywhite]

The following might help:-

Modifying 3G for better performance - HeliFreak

[Pod]

HI,

My V2 was exactly the same with wag but i had it on ff too... I started like on my other Align gyros at 35%. It was fine in a hover but in ff anf f/backwards it wagged like mad.

I had to drop the gyro gain down to 26% and its fine now.. I do have some elevator nod when it gets some straight line speed but I suppose I just need to turn the ele gain down a touch..

The HF thread is done on a nitro so an electric shouldnt have the vibes like that? Sod taking the 3GX apart tho

[coolice]

The following might help:-

Modifying 3G for better performance - HeliFreak

Hey.

This trick was for the 3G and not the 3GX Adamf has ;-)

You could try lowering the rudder lock gain, it might be trying to hold onto the tail too tight which is giving the impression of too high a gain.
I run a shorter arm on my 450's tail which allows a higher gain before wag sets in, might also be worth considering.
.

[adamf]

Thanks for the reply guys, I think I will have a play with the lock gain first and then play with the servo arm
Cheers again everyone,
adamf

[johnsandywhite]

Hey.

This trick was for the 3G and not the 3GX Adamf has ;-)

You could try lowering the rudder lock gain, it might be trying to hold onto the tail too tight which is giving the impression of too high a gain.
I run a shorter arm on my 450's tail which allows a higher gain before wag sets in, might also be worth considering.
.

Oops. I meant to link this one:-

3GX settings - HeliFreak