Schiffsantriebsanlage mit einem unter dem vorzugsweise im wesentlichen oder in Bereich der Antriebsanlage ebenen Schiffsboden angeordneten Antriebspropeller

摘要

The propeller (5) can be retracted behind the plane of the hull bottom into a shaft (8). When the propeller (4) is retracted into it, the shaft (8) can be closed lid-like in the plane of the hull bottom (1) by a plate (10). The shaft (8) can preferably be closed water-tight by the plate (10), the water trapped in the closed shaft can preferably be pumped out, and the shaft (8) pumped empty is preferably accessible through a manhole (18) in a top shaft cover (9) for inspection and maintenance work at the propeller (4), the manhole in turn being closable by a cover (19).