The Hagstirr™ replaces the stanchion and utilized the engines torque and multiplies the amount of water flow. The yacht then becomes significantly faster and uses less fuel with the same horsepower further extending the range of the yacht. By adapting a multi-prop system to a single prop design, the yacht becomes significantly more efficient. The Hagstirr™ also uses state of the art materials to reduce drag while efficiently using the engines torque.