I will try to answer. The white plastic assembly that holds everything is bolted to the bottom of the fuselage with two 4-40 bolts into blind nuts. Then the steering spring ends in a long straight wire that is simply poked up into the bottom of the rudder. I push the straight wire (with canopy glue on it) in until the spring is paraell to the bottom of the rudder. Does that help?? [8D]