Mini Titan FBL set up

[evolusia]

Hi, this is my first foray into the world of FBL helis and I have a Mini Titan e325s fbl fitted with the GT5 controller which is giving me a little bother. With the GT5 tail servo at the factory settings of 230 both ways in the controller and the servo arm length as it comes in the the kit, I am getting to much movement in the linkage. Can anyone tell me which is the correct item to alter, ie the arm length or the end stops in the gyro.

[Laurens]

What would you name under too much movement? Does it bind?

[evolusia]

Yes, it binds at both ends. The push rod actually bows right up in the guides on left rudder and stalls the servo on right. Now I would normally use 100% atv in the Tx direct to the servo to get the right arm length with a standard headlocking gyro but this thing has come supposedly set up ready to fly so I am assuming the arm length is correct. The value for the tail servo end stops in the GT5 is as per the manual but since I am not familiar with this Fbl stuff I am not sure if this is the way it is meant to be.

[Laurens]

If its on both sides, you should lower the 230 value.

[evolusia]

Ok, I'll give that a try. Thanks for your help.

[darkfa8]

I juggled adjusting the tail pushrod length, position of the servo on the boom, getting the travel limits to be equal and still getting equal stops and consistent piro rates clockwise and counter-clockwise.

My tail limit settings are at 191 I should probably measure the pushrod length and position of tail servo for reference.

[evolusia]

Originally Posted by darkfa8

I juggled adjusting the tail pushrod length, position of the servo on the boom, getting the travel limits to be equal and still getting equal stops and consistent piro rates clockwise and counter-clockwise.

My tail limit settings are at 191 I should probably measure the pushrod length and position of tail servo for reference.

Well after a bit of thought, I plugged my rudder servo straight into the Rx on channel 4 and got the best neutral I could with zero trim and subtrim, then messed about with the servo position and travel until I had equal throws both ways with the standard arm length. Then I plugged the servo back into the GT5 and reduced the end stop values until it didn't bind or stall, which equates to a value of 190 on my set up. Methinks Thunder Tiger have goofed with the end stop value or the link ball is in the wrong hole. Would like to have posted how I got on with the maiden flight but one of the cyclic servos just died whilst setting up the zero pitch position so now I'm waiting on a new servo.