ENGIN DE LOISIR NAUTIQUE MOTORISE

摘要

The invention concerns a water sport machine consisting of a hull equipped with a pump-jet, the hull is rigid and provided with an inflatable envelope. The pump-jet consists of a light duty engine combined with a water sucking propeller located in a suction box opening into the hull bottom, the outlet of the suction box opening into a nozzle with decreasing cross-section and a helical wall.