Tail Shudder in my Raptor 50 SE intermittent

[BeaverJamie]

I have a raptor 50 SE which is brand new I am on my second tank of fuel and WOW is it smooth compared to my hawk its amazing almost to smooth. But I have a small problem with it. So far I can hover it perfectly no problems at all it has a 401 Gyro installed and futuaba digital servo's all around and a Futaba 9C as my radio 9Ctap (or something) can't remember its exact name off hand. I started with gyro sensetivity at 100 avec (sp?) and normal 100 then I started brining it down. What it does is in HH mode I can hover say 30 seconds then it will shudder the tail then normal again then say 30 seconds again then same thing. If I try to use the rudder same it will shudder the tail then stop. If I go to normal mode the shudder appears to go away the heli does seem to be holding heading in HH mode though. I have gone from 100 and 100 down to 50-50 and it still does this. Does anyone have any suggestions?

[Frank Toorenburg]

I think you need to go lower, I am on 27%

[BeaverJamie]

I will give that a try I went though the whole thing and aligned the rod holders better for the servo, I also lubed it as well. I lubed the slider incase of binding too. I will also try to turn the gain down.

[Seeker]

Get the heli in a hover with HH turned on. With the gain up the tail will "chase" a little... turn the gain down until the tail holds steady and you're good to go.

[BeaverJamie]

Its weird because it will hover perfect for abotu 30 seconds in HH then shudder then back to perfect again. If I am not using thr rudder stick. If I give it rudder then it will shudder at the first input to then go away again.

[BarracudaHockey]

Is your engine nice and steady? The gyro can act up if the motor is running too rich or too lean and not producing smooth consistent power.

[BeaverJamie]

I thought about that but the engine seems to run really well. I noticed on my hawk before a badly running engine would do that. From what I have flown the raptor it is night and day smoother then the hawk!

[BeaverJamie]

So I have it figured out now there are a couple settings I didn't notice there is gyro sensetivity on my radio under the gyro sens option then under the end point adjustment there is another setting for the gyro so I have it at 90 on the H side and 50 on the L side and its amazing smoothest heli I have flow yet my experience being the raptor 30 hawk 30 the blade cp and the blade cx.