MR: step 5 Hinges, horns and servo controls Posted on 03/01/2018 by admin The rudder and elevator have servo horns. I made them with 1mm multiplex but plastic or bought ones will do as well. For the hinges I bought special hinge tape from HobbyKing. The servo horns are glued in after cutting a slot with a knife. I used epoxy. The beam are fibers with epoxied connections from HobbyKing.