Rim-driven thruster
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The rim-driven thruster, also known as rim-driven propulsor/propeller is a novel type of electric propulsion unit for ships. The concept was proposed by Kort around 1940, but only became commercially
Rim–driven thruster, presented at SMM 2010
Voith rim thruster at SMM 2010 in Hamburg
Propeller
Videos
A propeller is a type of propulsor with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which exerts linear thrust upon a working fluid such as water or air when r
Rim-driven thruster
…3 MW are available from manufacturers such as Rolls-Royce, Schottel, Brunvoll, Baliño, Voith, Van der Velden, etc. The rim-driven thruster is a marine propeller that does not use a central hub for transmission of the driving torque. Conventional hubcentric propellers typically use a shaft driven by a turbine…
A 'right-handed' propeller on a merchant vessel, which rotates clockwise to propel the ship forward. The man's hand rests on the trailing edge.
Propeller of Pratt & Whitney Canada PW100 turboprop mounted on Bombardier Q400
Archimedes' screw
Smith's original 1836 patent for a screw propeller of two full turns. He would later revise the patent, reducing the length to one turn.