Hull Outfittings
Apu Block
A rudder trunk bearing block that supports the rudder stock and permits it to rotate under load.
Hull Outfittings
Rudder Horn
A fixed hull structure that carries the lower rudder bearing on a semi-spade or horn-type rudder arrangement.
Overview
The rudder horn is a fixed, hull-integrated structure, part of the sternframe on many vessels, that carries the lower pintle bearing on a semi-spade rudder, sharing the load with the upper bearing in the rudder trunk rather than leaving the stock to cantilever unsupported. Because it is welded into the hull structure itself rather than bolted as a fitting, its condition is a structural survey item. Cracking around a rudder horn is checked at every classification survey given the fatigue loading it sees over a vessel's service life.
Specifications on request
Full specifications, material grades and dimensions are confirmed per enquiry. Tell us the vessel and the duty, and we will send the datasheet.
View datasheet—
Related equipment
Other equipment filed under the same part of the catalogue.
Hull Outfittings
Hybrid Vortex Reducing Fin
A hull appendage that breaks up hull-generated wake vortices ahead of the propeller to recover propulsive efficiency.
Hull Outfittings
Rudder Blade
The flat, streamlined surface that deflects water flow to steer a vessel, mounted on the rudder stock.
Hull Outfittings
Rudder Pintle
The pin that locates and bears a rudder in its gudgeon, forming the hinge the rudder swings on.