At a time when electric propulsion is gaining ground in the nautical sector, Gori Propeller offers a hybrid propeller capable of generating electricity while ensuring optimum performance under sail. This innovation is designed to meet the growing needs of sailors in terms of energy efficiency and sustainability.
An innovation for energy regeneration
In a context of energy transition, sailboats equipped with electric motors are multiplying. In response to this trend, Gori Propeller has designed a folding propeller with an integrated locking system that keeps the blades open when regeneration is the priority. A mechanism then releases the blades, allowing them to fold away when sailing performance takes priority.
The boat's maneuverability remains identical to that of the standard 3-blade propeller, with this new model benefiting from the same forward and reverse pitch as the conventional three-blade.
Compatibility with electric and hybrid propulsion systems
When the boat is under sail and power generation is no longer required, the blades can be folded to reduce drag and optimize speed. This switch between hydrodynamic performance and energy regeneration can be made according to sailing conditions, on-board electrical requirements and the propulsion mode selected.
This propeller is compatible with both conventional and saildrive shaft drives, with diameters ranging from 18 to 30 inches, and the range is set to expand to include smaller models. It is designed for pleasure craft, racing yachts and ocean cruisers, with a view to optimizing energy autonomy.
Integration and future development prospects
Tests carried out in Denmark, first in a tank and then in real-life conditions, have validated the efficiency of regeneration at different speeds. Gori points out that energy production depends on the torque generated by the electric motor used as a generator, as well as on the boat's speed. While this configuration offers interesting advantages, it nevertheless requires adaptation of on-board practices, particularly for sailors unfamiliar with hybrid systems.
In industrial terms, this propeller represents a step towards more autonomous, low-carbon yachting. It could be of particular interest to shipyards specializing in electric or hybrid units, as well as naval architects looking to integrate alternative solutions into their designs. Partnerships have already been set up with engine manufacturers to test the device's compatibility and performance.
The development of the Hybrid Propeller illustrates a fundamental trend towards marine equipment capable of combining mechanical efficiency and energy contribution. While the technology still needs to be democratized, it lays the foundations for a new generation of propellers adapted to the yachting challenges of tomorrow.
