Well, after some trial and error I have a steerable tail wheel on the Arrow. I drilled a hole from the bottom up on the hinge line right next to the rudder hinge. I then inserted a brass tube into the hole and CA'd it in place. I first tried using a piece of sixteenth inch aircraft cable to link the rudder to the bellcrank on the bottom of the fuse but it had too much twist when the rudder turned so I replaced it with a piece of pushrod. The pushrod is bent at the top and captured behind the rudder tiller. on the bottom I fashioned a bellcrank out of a 16th inch collar and an old servo arm I had laying around. On the tail wheel I did the same thing with a smaller servo arm and on a hole closer to the tailwheel wire to give me a bit of amplification of movement. I tried using some springs in a pull-pull setup but the springs put too much tension on the tailwheel bracket and it bound up the wire so it was very dificult to turn. if I loosened the spring tension everything just got floppy and it didn't turn at all... I ended up just using a single pushrod from the front bellcrank to the back one. What do you all think about it????