Pull-Pull servos

[Keith Black]

>> I have yet to change gears on a rudder servo or have parts come loose. And rudder centering is fine.

Matt, can you please clarify this statement? Is this because you get a new plane with new servos each year, or are you saying that you go multiple years without every changing servo gears? 

What are the most flights you have on any one rudder servo, and what type of servo.

Thanks,
Keith Black
  ----- Original Message ----- 
  From: Rcmaster199 at aol.com 
  To: discussion at nsrca.org 
  Sent: Tuesday, November 30, 2004 7:28 PM
  Subject: Re: Pull-Pull servos


  Hi Jim, the horn on the rudder should be as long as you can bare that will result in minimal slack cable syndrome. I normally use a 3" long 6-32 bolt, and bend it slightly to place the horns on the hinge line. On the kits I've built, I typically discard the stock rudder and build a lighter version. I shoot for a finished weight around 45 grams or less for this size rudder. I keep the cables snug but not too tight. NOT like a guitar string. I have yet to change gears on a rudder servo or have parts come loose. And rudder centering is fine.

  Matt

  In a message dated 11/30/2004 6:44:50 PM Eastern Standard Time, jivey61 at bellsouth.net writes:
    Guys
    Another discussion about pull-pull systems. I use pull-pull on the rudder and compared to the elevator servo the rudder servo gets worn and loose at the top bearing much quicker than the elevator servo.The cables are not too tight and are setup correctly so far as ackerman is concerned.The rudder being much bigger than the elevators may cause some of this problem. More momentum...
    I have used the JR top post brace before, but it can't be used with the 8411's without some mods.
    Any input or solutions?

    TIA

    Jim Ivey
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20041201/dc52d95c/attachment.html