What's the right gain for JR770T with Hyperion rudder servo(0.05s)for Mini Titan?

[Radio man]

What's the right gain for JR770T pair with Hyperion rudder servo(0.05s) which is fix on Mini Titan? Tail keep on wagging whenever i power up despite the gain adjustment. Don't know what's wrong with it? Need advice from heli flyers.

[Heli_fanatic]

1) Gain settings are not consistent amongst all helis
2) Are you running governer mode ?
3) IF needed , did you setup in rate mode.....

[rkte]

Try to put the rudder linkage on the most inner of servo horn.

[Radio man]

1) Gain settings are not consistent amongst all helis
2) Are you running governer mode ?
3) IF needed , did you setup in rate mode.....

Normal mode, not governor mode.

[HotDogBun]

Hi, I am using JR G770T with 9257. It works and holds better than my Futaba401.
You must remember, the setup has to be these. I studied it for quite a while in HeliFreak and RunRyder and got it to work this well.
- End-Point-Adjustment has to be Max. Mine is +110 & -110 for MPX TX
- Dual Rates at 50%, as recommended by the forumers.
- Exponential at 40%, as recommended by the forumers.

Hope it helps. The setup 401 and JRG770T is entirely different as what I experience. I tried using the EPA to adjust without using Dual Rates and Exponential, the results is disasterous....

[Radio man]

Hi, I am using JR G770T with 9257. It works and holds better than my Futaba401.
You must remember, the setup has to be these. I studied it for quite a while in HeliFreak and RunRyder and got it to work this well.
- End-Point-Adjustment has to be Max. Mine is +110 & -110 for MPX TX
- Dual Rates at 50%, as recommended by the forumers.
- Exponential at 40%, as recommended by the forumers.

Hope it helps. The setup 401 and JRG770T is entirely different as what I experience. I tried using the EPA to adjust without using Dual Rates and Exponential, the results is disasterous....

Thanks for the info. But will it work on this combination JR770T and Hyperion DS-20-GMD. I will try again later in the late afternoon.

[HotDogBun]

Got a hunch it should work. Just make sure if your servo is a digital, the setting on Gyro should be on High, check the manual in case I'm wrong.

All servos function more or less the same. Its the setting on the Gyro that makes the difference.

Once you've set it up nicely, you'll have no regrets
Now my Mini Titan's tail won't even wag when there is drop in headspeed while banging the collective

[gilera180]

Funny thing is that my D/R is also 50% and Expo is 35% but I still have full travel on my rudder. Gyro sense is 61% at idle up. Don't use the set-up procedure for GY401 with this gyro is entirely different. This gyro uses D/R to control piro rate whereas GY401 uses ATV or end point. When you increase the gain the piro rate will be slower so set to the values you're comfortable with and have fun.

[HotDogBun]

Yeah forgot to thank gilera180 for sparking my search for the settings. If not till now I'll still be having wrong setting
Btw my Gyro gain is about 28% for head hold
Do update us on your testing results

[Radio man]

Bros.

Still cannot. Whenever power up or power down the tail still wagged. Don't know what's wrong. Wondering if there's anything wrong with the Hyperion metal digital servo 0.05s or the JR770T Gyro. Another problem is that sometime the tail pitch control set cannot travel full to one of the end point as a result the tail keep on spinning regardless of input control to the right to counter it but still in vain. After that i checked it out and realised that whenever the tail spin it can't slide to the other end and whenever it is slow down it can. Still investigating what's wrong with the full metal tail? For your info plastic tail doesn't give me any problem with the combination of Futaba 240 and Airtecnic servo 0.12s until recently I've upgraded it to metal tail with the combination of Hyperion metal digital servo 0.05s and the JR770T Gyro. Spektrum TX setting: (ATV:150 left and right)(Auto, Gain:53, Expo:40, D/R:50, LMT:Full, Servo outputow}. Thought of getting a Futaba servo and try it again. Please advice.

[HotDogBun]

Worth a try to change the servo. For Trex500 I'm using 9254. Smaller than this size I'm on 9257. But you can use 9257 on Trex500 though. Mine is alittle overkill
Have faith mate

[Radio man]

Worth a try to change the servo. For Trex500 I'm using 9254. Smaller than this size I'm on 9257. But you can use 9257 on Trex500 though. Mine is alittle overkill
Have faith mate

Well no choice but to spend money again on either JR8900 or Futaba 9257 tail servo. One time heart pain and try to earn $$$ back later. Will try again later in the evening.

[erwinseow]

Bros.

Still cannot. Whenever power up or power down the tail still wagged. Don't know what's wrong. Wondering if there's anything wrong with the Hyperion metal digital servo 0.05s or the JR770T Gyro. Another problem is that sometime the tail pitch control set cannot travel full to one of the end point as a result the tail keep on spinning regardless of input control to the right to counter it but still in vain. After that i checked it out and realised that whenever the tail spin it can't slide to the other end and whenever it is slow down it can. Still investigating what's wrong with the full metal tail? For your info plastic tail doesn't give me any problem with the combination of Futaba 240 and Airtecnic servo 0.12s until recently I've upgraded it to metal tail with the combination of Hyperion metal digital servo 0.05s and the JR770T Gyro. Spektrum TX setting: (ATV:150 left and right)(Auto, Gain:53, Expo:40, D/R:50, LMT:Full, Servo outputow}. Thought of getting a Futaba servo and try it again. Please advice.

Hi.... have you tried changing the gyro output direction? There is a switch on the Gyro that allows you to do so.

[Radio man]

Hi.... have you tried changing the gyro output direction? There is a switch on the Gyro that allows you to do so.

Did so but still cannot.

[stickman]

Radioman,

what spektrum TX are u using?

are u using that "gyro sensing" function? i suggest NOT to use that. just use a single channel and purely EPA to adjust the gyro gain. use the flip switch to change between head holding and rate mode.

i have 2 JR770s and both work perfectly.

drop by anywhere that got funfly and get some help. easier than trying to diagnose your problem over internet.

good luck!