Before gluing the Rudder on, I glued a torque rod I made from 1/6 music wire to the Rudder. Much like what you have at the ailerons except the arms are in line with each other. So that transfers the rotational movement of the Rudder down through a small semi-circular hole at the elevator's leading edge in the center. That hole allows the torque rod to pass through. It's long enough to come just to the bottom of the fuselage. I used a Sullivan Tail Wheel Bracket http://www3.towerhobbies.com/cgi-bin...&P=SM&I=LXFV47 mounted to a block I glued behind a hatch cover I made in the rear fuselage bottom. I knew I'd probably would have to add a little tail weight, so this hatch has dual purpose. Tied the torque rod and the Tail Wheel Spring wire they give you together with just a piece of fuel tubing. So there's no direct mounting of the tail wheel to the rudder, so in a jarring landing, the rudder hinges don't get a jolt. I think you could almost get by with a "free wheeling" tail wheel, but that's not the biggest rudder to have much authority. I figured some steering would be fine and am not worried about precise steering. Haven't flown it yet, but it looks sound.