Propeller tunnel for ships under arctic conditions - has funnel shaped inlet extension piece tapering in water flow direction
DE2710685A1
Propeller tunnel for ships under arctic conditions - has funnel shaped inlet extension piece tapering in water flow direction
DE2647294A1
High efficiency propeller shroud nozzle for ship - has lobed intake funnel and outlet deflector around part of circumference with bracing to prevent vibration
DE2640522A1
Funnel shaped barge propeller housing - has ear shaped shroud enclosing double conical restrictions forming water jet
DE2634573A1
Coastal craft steering system - has retractable angled rudder blades selectively lowered on each side from housings formed by watertight compartments
DE2523669A1
Steering rudder for ship - with short wide profile and upper and lower ducted edges
DE2430112A1
Profiled rudder for improved steering - with sloping head and tail sections and parallel trailing edge
