Idea: Voith Schneider Propeller with changing blade path and angle such that it has thrust phase on one side and a lift phase on the other. Basically it would

Idea: Voith Schneider Propeller with changing blade path and angle such that it has thrust phase on one side and a lift phase on the other. Basically it would be two giant low-speed spinning hydrofoil discs. Heavy low-end torque for a direct-drive electric motor.