(US5863228-A)      The marine sailing vessel incorporates a propulsion system with electric motor, transmission and propeller(12,14) fed via a regenerative feedback circuit (28) to an electrical power supply (27). Sunlight, wind and water motion energy are harnessed with photoelectric cells in solar panels and wind and water powered generators (24a,24b).    A control circuit (16) regulates the flow of electrical energy and controls the speed and direction of operation of the electric motor which can be used to manoeuvre in harbour or as auxiliary power in low wind conditions.    ADVANTAGE -   Provides lightweight, space efficient auxiliary power for driving propeller and recharging batteries for sailing vessel.    (EP896559-A1)      The marine sailing vessel incorporates a propulsion system with electric motor, transmission and propeller(12,14) fed via a regenerative feedback circuit (28) to an electrical power supply (27). Sunlight, wind and water motion energy are harnessed with photoelectric cells in solar panels and wind and water powered generators (24a,24b).    A control circuit (16) regulates the flow of electrical energy and controls the speed and direction of operation of the electric motor which can be used to manoeuvre in harbour or as auxiliary power in low wind conditions.    ADVANTAGE -   Provides lightweight, space efficient auxiliary power for driving propeller and recharging batteries for sailing vessel.    (JP2000509346-W)      The marine sailing vessel incorporates a propulsion system with electric motor, transmission and propeller(12,14) fed via a regenerative feedback circuit (28) to an electrical power supply (27). Sunlight, wind and water motion energy are harnessed with photoelectric cells in solar panels and wind and water powered generators (24a,24b).    A control circuit (16) regulates the flow of electrical energy and controls the speed and direction of operation of the electric motor which can be used to manoeuvre in harbour or as auxiliary power in low wind conditions.    ADVANTAGE -   Provides lightweight, space efficient auxiliary power for driving propeller and recharging batteries for sailing vessel.