ROTATIONALLY RETRACTABLE PROPELLER

摘要

The device has a propulsion set with a rigid structure containing a engine for rotating a propeller (3) at the interior of a cylindrical turbine using a shaft turning between the engine and propeller. A displacement unit (101) moves the set between retracted and deployed (B) positions in a uniform circular movement with respect to a center of rotation (11) situated at the level of the hull or beneath the hull.