ki3w

My Feedback: (2)

What is the correct tension for pull pull cables? The manual for my Dave Patrick Ultimate 40 says to take out the slack only. That seems a bit vague to me. If I do that, I can still move the control surface without moving the servo and it seems too loose. ?????

DMcQuinn

My Feedback: (13)

Not nearly as tight as a guitar string. If the slack is gone, it should work OK. It is typical in a pull-pull setup that you can move the servo a bit and the servo arm does not move. this is especially true when you have a lot of throw (e.g. 45 degrees each way). I have found that it is not all that critical. I am using pull-pull on several planes ranging from .40 fun flies to 80 inch sport planes. On my stinger 120, I have three pull-pull systems (one for rudder and one for each elevator half). this keeps the servo weight nearer to the center of the plane.

ki3w

My Feedback: (2)

My plane has 3 pull pull systems and sounds just like what you have. Thanks for the advice.

FlyingPilgrim

My Feedback: (26)

Just tight enough so when you move the controlled surface that there is very little slop before the servo moves.

khodges

My Feedback: (1)

Snug enough that when the controls are released, the control surface returns to neutral, and has almost no free play. Excessive free play can contribute to flutter.

ki3w

My Feedback: (2)

Thanks for your tips. I'm ready to fly today.

Rodney

Like Dave Patrick says, just barely take out the slack.