An aircraft propeller de-icing system comprising: at least one propeller blade coupled to a rotatable prop assembly, the prop assembly configured to rotate in response to rotatably driving a propeller shaft; characterised in that: the system further comprises: at least one resistive-inductive heating unit (112;200;400) coupled to the at least one propeller blade, wherein the resistive-inductive heating unit (112; 200; 400) includes a flexible foil mesh that conforms to one or more portions of the propeller blade, the flexible mesh including a matrix of individual resistive-inductive heating elements, wherein the resistive-inductive heating elements generate a magnetic field in response to an electric current, the magnetic field generating eddy currents that induce inductive heat; and a contactless power transfer system that generates the electrical current in response to transferring power across an air gap (507;607) separating the propeller shaft from the contactless power transfer system. at least one propeller blade coupled to a rotatable prop assembly, the prop assembly configured to rotate in response to rotatably driving a propeller shaft; characterised in that: the system further comprises: at least one resistive-inductive heating unit (112;200;400) coupled to the at least one propeller blade, wherein the resistive-inductive heating unit (112; 200; 400) includes a flexible foil mesh that conforms to one or more portions of the propeller blade, the flexible mesh including a matrix of individual resistive-inductive heating elements, wherein the resistive-inductive heating elements generate a magnetic field in response to an electric current, the magnetic field generating eddy currents that induce inductive heat; and a contactless power transfer system that generates the electrical current in response to transferring power across an air gap (507;607) separating the propeller shaft from the contactless power transfer system. the system further comprises: at least one resistive-inductive heating unit (112;200;400) coupled to the at least one propeller blade, wherein the resistive-inductive heating unit (112; 200; 400) includes a flexible foil mesh that conforms to one or more portions of the propeller blade, the flexible mesh including a matrix of individual resistive-inductive heating elements, wherein the resistive-inductive heating elements generate a magnetic field in response to an electric current, the magnetic field generating eddy currents that induce inductive heat; and a contactless power transfer system that generates the electrical current in response to transferring power across an air gap (507;607) separating the propeller shaft from the contactless power transfer system. at least one resistive-inductive heating unit (112;200;400) coupled to the at least one propeller blade, wherein the resistive-inductive heating unit (112; 200; 400) includes a flexible foil mesh that conforms to one or more portions of the propeller blade, the flexible mesh including a matrix of individual resistive-inductive heating elements, wherein the resistive-inductive heating elements generate a magnetic field in response to an electric current, the magnetic field generating eddy currents that induce inductive heat; and a contactless power transfer system that generates the electrical current in response to transferring power across an air gap (507;607) separating the propeller shaft from the contactless power transfer system.