Rudder Box: Constructed of Non-Corrosive, Composite Materials
Incomparably strong and matchlessly durable, the Dotan rudder box was developed more a decade ago by Dotan Maritime Industries (after intensive, prolonged laboratory research) using non-corrosive, composite materials which make the Dotan rudder box steadier against dynamic loadings than aluminum boxes.
Inside the box, the minimalist 3-part (super-smart!) roller-lock-coulisse mechanism has been confirmed by authoritative sources (based on operational experience) to serve sailors with a minimum lifespan of 10 trouble-free years, without wear-and-tear.
Sailors can adjust the distance between the upper and lower gudgeon, thereby enabling compatibility with diverse boat transoms/sterns. The upper gudgeon slides freely along the rudder box track. Position it according to your boat's specific transom/stern dimensions and fix it in the track by screwing in the four screws supplied.
Dotan's conceptually brilliant rudder mechanism enables you to set the blade with a simple flick of the wrist.
Rudder Box: Constructed of Non-Corrosive
Incomparably strong and matchlessly durable, using non-corrosive, composite materials which make the Dotan rudder box more steadier against dynamic loadings than aluminum boxes.
Blade Shape: NACA Hydrodynamic Profile
The Dotan rudder blade's profile is designed on the basis of the NACA 0009 hydrodynamic profile (National Advisory Committee for Aeronautics). The Dotan rudder blade's shape minimizes wave and inductive resistance.
Encountering obstacles
When hitting underwater obstacles such as rocks, sandbanks, jellyfish, etc., the blade automatically kicks up.
Warranty
Your Dotan rudder system comes with a 3-year limited warranty for the rudder box and with a 2-year limited warranty for the blade. The rudder box for Optimists has a 10-year limited warranty.