The first steerable thruster to be equipped with the newly developed and patented SCHOTTEL ProAnode sets Operational benefits include reduced flow interference. Image credit: Schottelnew standards in corrosion protection by extending the lifecycle of the thruster. The position of the anode has been relocated from the outside surface into the cross-section of the nozzle tail leads, resulting in reduced flow interference and fuel savings.

Anodes installed on the outside surface of the nozzle are prone to damage or loss by flotsam. Loss of the anodes is usually only discovered during maintenance downtime, by which time corrosion might already have become a problem. The feasibility of integrating an anode into a nozzle depends on the nozzle’s diameter and the anode’s material. If possible, the anodes can provide up to five years' cathodic protection against corrosion and reduce the need for additional anodes for the hull or other thruster parts.

The new position in the tail of the nozzle not only shields the anodes, but also offers additional operational potential as it optimizes hydrodynamic flow of the nozzle and improves the efficiency of propulsion systems.