Guys,

I am starting my 4*40 build and am not too impressed with the supplied pushrods. Every plane that I have built in a long time, I put the elevator and rudder servos in the tail. This time I may go ahead and use pushrods. I have thought about ordering some Sullivan Gold N Rod but have heard that they change length with temp. So what do you guys recommend? What do you like? Thanks.

With great success I'm using Sullivan Composite Flex Rod 2-56 and never trim at the beginning of the flight day again, one of 48" cut into two pieces will do
http://www3.towerhobbies.com/cgi-bin...2&I=LXFV43&P=K
or two of the same
http://www.hobbyking.com/hobbycity/s...idProduct=7328

I'm planning to use composite for the elevator pushrod, and a pull-pull system for the rudder. This is my second four*, but first from kit

Use good ol' dowell rods. Put a 'z' bend on servo end and an adjustable clevis on the other. Cheap and efficient! I have used dowell rods for very long runs by breaking it up into sections via a 'walking beam' arrangement if I can't use pull-pull cables. I have used carbon arrowshafts for big airplanes and I put elevator horn upright so the servo pulls elevator to up position instead of pushing (think flexing). We fly upright most of the time. I always use pull-pull on rudder, if possible- weighs nothing.

I used Sullivan Gold n Rods on my 4*40 and like them very much.

For 40 size, 2-56 steel rod in tube.
Edwin

I like Great Planes solid wire pushrods. These are 36" and other lengths are available.
http://www3.towerhobbies.com/cgi-bin...?&I=LXK059&P=0
The equivalent from Dubro also work well.

Hi!
Fishing steel wire, Aluminum arrow shafts or wooden dowels.

I have had good luck with Dave Brown Fiberglass push rods:

https://www.dbproducts.com/index2.htm

Bruce