611 SERIUS PROBLEM

[Phaedrus]

Originally Posted by DavidH

I am a Futaba Team pilot. When a newbie or any sport flier ask me about gain settings on the GY series gyros. I tell them to set the gain in the 35-45% range. The GY series gyros hold very well at low gain settings. So there is really no reason to have the gain set 60-90% on sport flying helis. It is just abusing the servo and shortening the life.


David

Agreed. The point I am trying to make is that this magic 37% number that is out there really is not all that meaningful. People start to get the idea that running these gyros above 37% is a bad thing to do.

I tell people the same that you do. Run the minimum gain necessary to hold the tail. But don't obsess about what that number is. There is nothing magic about 37%. You are not going to fry your servo at 38% (or even 50% or 60%). But why run any higher gain than necessary??

[fgcity]

tnx guys for the info. I wanted to ask also what batteries should i use? how many cells how much voltage and how much Ahm?

And should i get the 5.3 Voltage regulator or 6V regulator?

Also , my servo is working now but as you guys say it's burned so it will not function properly if i lower the gain now and lower the voltage? I mean there is no chance that the new servo just overheated and stopped responding and if i run it under normal conditions it would be ok or i should buy a new one? I just want to be sure if i am going to spend extra 100$

[DavidH]

If it has quit working at one time. There is definitely something wrong with the servo. I personally would not use the servo again in the heli till it was checked out by a service center.

You can read some on the site below.
http://www.duralitebatteries.com/

This is the batteries and regulators I use in my helis.

David

[Phaedrus]

Is it possible that the system voltage dropped and the gyro reset causing the tail to spin??

[fgcity]

when i was moving the Rudder Stick at home very fast at one point on the LCD there was "----" what is this and why does it happen , how do i fix it?

[BarracudaHockey]

Thats normal there's nothing to fix.

Ask yourself this: Is the crash damage going to cost more than replacing the servo?

[MrMel]

when i was moving the Rudder Stick at home very fast at one point on the LCD there was "----" what is this and why does it happen , how do i fix it?

If it starts to say - HELLO - during movement, then you having a problem (bad RX battery etc).

As other has stated, replace the servo, lower the gain, run on regulated power, or at least a stepdown module for the servo.

[Krister T]

I had a similar problem on one of my new 611 gyros in my Black Shark3.
In ff did the heli starts to piruetting. The strange thing was that I hade some control of the gyro, the piruetting speed were in beetwen ridiculas high and extremely high .

Later on the bench so could I see how much input I had on the servo it was about 10deg on the servo arm stucked to one side with full movement on the stick.

This gyro was new and had only 4 flights. I run on high gain as I fly F3c just as David H. I'm using 4.8v nicad.

After switching on and off the gyro so did it work normaly as it should do.
Futaba told me that the gyro sensor was the problem and they sent me a new one.

Krister T

[DavidH]

Good to hear from you Krister. Hope everything is going well for you and your family. Hope to see you in Poland at the WC's.

David

[fgcity]

i appriciate all the help guys, i hope this doesn't happen to me again.