Trex 450

[Keith0104]

Hi everyone

I am having a problem with flying my heli, when I start to hover. The tail starts to spin I have tried to trim this out however it's not as bad now but still does it, it stops when the head speed picks up is there a way of stopping this from happening for shall I just put up with it

Sorry if this has been brought up before I'm new on here and to the heli world

Regards Keith

[PKNEC]

you can do it by altering the throttle and pitch curve so you have more headspeed at hovering.
Mine is set up at zero pitch at centre stick then I just tried some throttle curve settings to stop it bogging down at the hover.

[Keith0104]

Thanks mate

I will give this a try over the next few days and post my progress

[challis349]

I think he means the tail spins at low head speed, pitch and throttle curves won't help a huge amount.

If you have tried to trim it out, and it's got better, it sounds to me that you need to set the tail servo up properly. It sounds like the gyro is working overtime to me.

Find a YouTube video of how to set a 450 tail up and see if yours is done the same,

Tails servo arm at 90 degrees to the servo? Pitch slider roughly in the middle? Gyro set correctly? These are things I would be checking, if it gets better with head-speed increase, then set a 0-40-60-80-80 throttle curve see if it's better, a fly in idle up (straight 95 or 100 across the throttle curve)

But I would look at tail set up first

[scallybert]

Not really the answer to what's been asked, but given that you can get Spartan Quarks for ~£60, I'd consider fitting one of these, and running it in heading hold mode.

IME, they'll work well even if a beginner (ie me) did a terrible job of setting it up. Also, the LED makes it clear which mode it's in, and tells you other useful stuff.

It's a case where the pro-quality kit is very beginner-friendly, and currently relatively cheap.

The (older & bigger) Spartan DS760 is also very good - and may be cheaper.

[Keith0104]

Thanks for all your help guys I have played about with the gyro and it seems to have got rid of most of it still a little left but have been assured thats because of the head speed to tail speed

Regards

Keith