Explore the World of Ships and News 

Centrifugal pump is drive in water from sea to water ballast tanks refer to as ballasting or taking out water from water ballast tanks to...

Enclose space filled with sea water to balance the ship when there is no cargo. It has an entry point. The oxygen content is low, before...

They are specially designed for dredging of shallow waters, they can be either fixed meaning can't be propelled by itself or can be...