Pull-Pull servos

[Rcmaster199 at aol.com]

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


 
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