Rudder Kit:

The Single Fin Rudder features a single fin hydrodynamic foil. The Linkage steering system mod eliminates unwanted slop. Aluminum servo horn (arm) fits all popular manufactured servos; ball joints are slop free and easily removed for push rod cleaning; extra servo tape; push rod is stainless spring steel with nylon fiber casing; rudder arm/shaft design allows two o-rings water seal, and a Teflon taped shaft that water proofs and aids in material loss from wear and tear.