I have the G5000t gyro system with a vigor heli. I'm new to this side of the hobby and I just started hovering a month ago. Last week I noticed the tail servo locked to the left side. Almost like full left stick. I still have control of the servo if I give it full right stick. I checked all wiring and it was ok. I turn off and on the heli and it was back to normal. My question is... Is the gyro defective or the servo? How can you tell during the flight if the gyro need upgrading?

I suspect that you are in Tail Lock mode. If so this is normal.

To double check, try putting it in rate mode and moving the stick again. In this mode the tail will follow your stick input.

It may be worth trying a search for Heading Hold or Tail Lock (they are the same thing) on RCU to understand why this happens. This is a common point of misunderstanding and has been discussed before.

I hope this helps.

Question i'm new to this and learning in an open field . What is the purpose of the Heading Hold or Tail Lock ??
and when to use it. While hovering which is best to use?.

Thank you

Heading Hold is the same thing as Tail Lock. The other kind of gyro is a "rate" gyro. Most HH gyros can be set for rate mode. HH gyros are typically more expensive than rate.

Rate gyros always return to servo-center when the rudder stick is centered and the heli is stationary. They require trimming-in once you are in the air in order to get the yaw to be stable. A rate gyro will move the rudder servo for you while the heli is turning (yaw); it will always return to servo-center when the heli stops turning. A rate gyro can be used with revo mixing, but this is not usually necessary. Some people like to use rate gyros while doing forward flight because the rate gyro will allow the tail to fall-in behind the heli.

Heading Hold gyros try to remember the yaw position of the heli and make whatever corrections are necessary to resume that yaw heading. They do not require trimming in. In fact, you can't (shouldn't have to) use any rudder trim at all. With the sticks at center and the heli stationary, it's common for the tail servo to slowly advance to one side and stay there. When the heli moves in yaw, the HH gyro compensates and holds that compensation value until the yaw is back where it started. The servo does not return to center until the yaw returns to the 'memorized' postion. The rudder stick moves this 'memorized' position. These features border on technical magic and that is the reason why HH gyros are more expensive. HH gyros are exceptionally valuable to the beginner learning to hover. When in HH mode, the pilot will have to "fly the tail" when doing maneuvers in forward flight. This means that the pilot must manually move the tail behind the helicopter when flying forward; otherwise the tail would just stick out in whatever direction it was last pointing. [actually, that can be fun too.]

Many people have a switch set on their radio to switch between modes. You might want to use HH mode for hovering and landing, but use rate mode for forward flight. It's all good.

-Mark

Marked23

I'm learning alot with your information. Does my G5000t have both features and if it do, how can i switch from Heading Hold or Tail Lock ???? . I have the JR8103 radio HELI VER:


(BASIMPSN SORRY ABOUT TAKING OVER YOUR TOPIC)

Thanks for your help

Oh yeah,
The G5000T is the most feature-rich of the JR gyros. I've never used one, but it absolutely has every feature that any other gyro might have.

If you don't have your manual, you may be able to download one here: [link=http://www.rchelis.com/manuals/JRPG5000Tman.pdf]http://www.rchelis.com/manuals/JRPG5000Tman.pdf[/link]

To switch from HH to rate you can simply flip a switch on your gyro amp. There is a switch for tail lock. On and off. Also, you don't need to plug the two aux connectors into your receiver. You can set the sensitivity with a tiny screwdriver. Look at the light on your gyro amp. Red = rate. Green = Tail-lock.

The better way is to decide which switch you want to use on your 8103 and set it up. In the programming of the 8103 it suggests to use the rudder d/r switch. Folks at your heli field will suggest that you use your gear switch. Pick one. They program differently. The Aux2 connector controls everything. Forget about using your Aux3 connector for now.

Let's talk about the Aux2 connector and how it tells the gyro what to do: The Aux2 connector is just like any other servo channel, it has positive values, a center, and negative values. If you send the gyro the center value, it tells the gyro to do nothing. Yes, it's just like not having a gyro at all. If the Aux2 channel tells the gyro to have a negative value, then you are telling it to work in rate mode. A greater negative value is more gain for rate mode. So a full negative position is 100% rate mode sensitivity. This works the same way in the positive direction, except this time it specifies tail-lock mode. A full positive position is 100% tail-lock sensitivity.

I'm using the rudder d/r switch. With that technique, you go to the [GYRO SENS] page and set the channel to Rudder D/R Then set the positions below. I set my tail-lock sensitivity to be on position0 and I set my rate mode to be on position1. There is an interesting trick here. Notice that the numbers only go from 0 to 100? Where are the negative numbers? There aren't any. Don't fret though. Consider that 50 is the center. Anything below 50 is rate mode and anything above 50 is tail-lock mode. There is a trivial formula to convert this back to percentage. Input 70%, subtract 50, then double it. (70-50) = 20... 20 * 2 = 40%. A setting of 70% on the screen means "tail-lock mode at 40% sensitivity."

Here's the chart:
For use on the [GYRO SENS] page of the 8103 only.
Onscreen In Gyro
90% = 80% HH
80% = 60% HH
70% = 40% HH
60% = 20% HH
50% = 0%
40% = 20% rate
30% = 40% rate
20% = 60% rate
10% = 80% rate

There are others who use the gear switch for this same feature. I went in and looked at the settings for servo travel. You can set the positive travel with one value and the negative travel with another value. This prevents you from setting two different rate values or two different tail-lock values. If using the gear switch, it looks like each position must be in a different mode.

If one setting in each mode is not enough for you, then you should look into the features of the Aux3 connector. I don't need to complicate my life that much, so I didn't read about doing that. Aparently it is actuated by the flight mode switch.

-Mark

Thanks for all the info you gave me. Unfortunately while I was practicing today, I got interference from somewhere, while flying I got locked out and it sat there hovering for about 30 seconds, I was able to regain control and I tried to put it down fast and it tipped over and I damaged both blades, tail, rotor and shaft. I will be out of commission for a while. Thanks again for all of your input. I will save it for when I am back in the air.

How can I put more comand to the right than left in g5000t?On the amplifier have the ajust,but I just found the same comand to both sides!For example, in ICG 540 I can put e diferent comand,and manual of 5000t says that I can do this,but how?
I use the gyro with Raptor V2 and 8417 digital servo,90% ATV,16mm servo arm and 50% gyro sensibility.