401 w 9257 and delay set to 50

[weru]

If I have to put the delay to about 50 on a 401 and a 9257 on the tail, am I doing something wrong?
The reason I put it to 50 was to eliminate that "hunting", I believe is called, when I turn the tail to the right it kind of shakes when I stop the input. (does NOT happen when I turn to the right) kind of odd.
any help please:arggg:
:confused:
:roll:

[Kirkgang]

I have the 401 & 9650 on mine. The instructions for the 401 say that if you are running a digital servo to set the delay to zero. It's in small print under functions. Also, I believe your servo is digital (check to make sure), the DS switch should be in the on position. Other than that, you may have to play with your gain. Mines on 70. I,ve found it best to re-bind after making any adjustments to the gryo function. Learned all this from this forum. Thanks guys!

[Bladey]

According to the 401 manual you shouldn't have to put any delay in as you are running a digital servo. Have you put your DS switch on the 401 to ON?
I have just installed the 401 and 9257 on mine and I must admit it took a bit of fiddling with the set-up to get it right. Initially my tail would go mad, turning down the gyro rate on the Tx I think eventually sorted it, I started with 70% and now it's only 63% (I might creep it up a bit more but HH is locked in solid anyway).
Stick with it as once it's set-up right you wonder how you did without it, it's a great upgrade.

[Bladey]

Beat me too it, what Kirk said above :thumbup:

[Kirkgang]

Hey Bladey, were're all here to help each other (and believe me I need all the help I can get). Don't believe this is hijacking this thread as it is on the same subject. At 70% mine has just alittle wag to it but it holds good. Does your lower rate take this out? Also, have you found that you need to re-bind after making adjustments to the gryo menu? Thanks.

[Nyther]

You may also have to set zero on the gyro by switching from AVCS mode to rate mode 3 times within 1 second. Start in AVCS switching and end in AVCS. The red light will flash then stop. This tells the gyro what is center stick on your rudder channel. "Hunting" on this gyro is caused by suddenly moving your helicopter when power is first applied. Wait a few seconds after you power on your heli. Do not touch the rudder stick also during this time. Then make sure your gyro settings on your radio are set so that you can switch between AVCS and Rate mode. Then switch between the two and neutral rudder is set on the gyro.

Ken

[Bladey]

Hey Bladey, were're all here to help each other (and believe me I need all the help I can get). Don't believe this is hijacking this thread as it is on the same subject. At 70% mine has just alittle wag to it but it holds good. Does your lower rate take this out? Also, have you found that you need to re-bind after making adjustments to the gryo menu? Thanks.

:YeaBaby: Can't believe we posted almost identical answers, we must be doing something right I guess! :) I'm only a noob but learning all the time mainly thanks to this forum :happyd
I went straight down to 63% from 70% just to try and correct my mad tail, it wasn't even a wag just mad pirouettes whenever a slight input was given! (I'm glad I tested it on the ground). I don't know if it was the rate change that cured it as I was also was fiddling with the rudder servo reversing switches too. It's now reserved on the TX and on the gyro, I'll try and correct that tomorrow but it's flying well! Anyway at 63% it's locked in great in HH mode, no wag at all. I have just put two batteries through it and on the last one experimented with hard elevator/throttle changes (norm mode) and it I can't believe how much better it is now compared to stock, it's like a different heli (and I was starting to think about a Trex). I might creep the gyro rate up a bit tomorrow and see what happens but I'm a great believer in "if it's not broke don't fix it!".
I haven't re-binded (should that be bound?) since setting the tail centre up as per Sokal videos.

Thanks to again to Sokal for his excellent set-up videos, I'd be lost without them! :thumbup:

Nyther,
That's interesting what you say about making sure the heli is not moved while the start-up sequence is gone through. I am sure I didn't but I may have moved the rudder stick, it may explain the "mad" tail I had later on at about half stick.

[weru]

Thanks,
Will keep playing with it tomorrow...will tell you what happens:hug:

[BarracudaHockey]

You shouldn't need any delay with a digital servo.

Delay deals with bounce on hard stops.

To properly set delay you would give hard rudder and do a full piro and let go hard, if the tail bobbles before it locks in you increase the delay until it stops cleanly. The correct delay is the minimum amount possible to get clean stops.