450 Trex 450 pro tail linkage rod question.

[Bruno]

I have found that I can not thread more than about 3 to 4 revolutions of the ball link onto either end of the tail linkage rod and maintain the tail slider in the center of the tail rotor shaft. The ball link connection seems solid but it only uses about 1/2 to 2/3 of the ball link female end. Is this about right? Has anyone realized a different configuration or adjustment?

 

[Bruno]

Should I maybe use a 340mm rod (used with 500 size heli) instead of the 330mm rod (450 size)?

 

[Slobberdog]

If you follow the manual it needs to be set up to 345mm so you could not do that with a 340 rod

 

[Bruno]

Yea, you are right. I am good according to the manual I am actually about 2mm closer on the end links. My slider is centered with the servo at 90. She flies/hovers very nice. Are the rear blades supposed to have some positive pitch?

My overall concern is that I have enough rod thread in the ball links. According to the manual, there should be only 3.5mm of threaded rod in each link. That's about my 3-4 turns. Just seems like there should be more. However, they can not loosen with the rod and balls intact.

 

[murankar]

The tail should have just enough pitch to hold the tail without trim. At least that's what I do.