Gustomsc Resources B.v.

Seaway Heavy Lifting Engineering B.v.

Willem Jacob Van Der Velde

Johan Albert Commandeur

Willem Johannes Alain Wassink

Matthijs Bastiaan Noordegraaf

Richard Lunn

Wouter Reinder Van Dalen

Vessel including a hull of a substantially closed surface has at deck level a lifting crane, ballast tanks within the hull and a ballast control unit for admitting water to the ballast tanks for changing the draft of the vessel. The hull has a narrow lower section having first width over a height from keel level to a widening level, and a top section having a larger width than the lower section, extending from the widening level upwards towards deck level. The control unit is adapted to ballast the vessel to have a relatively shallow draft level in a transit mode, so that the wide top section is above water level, while the vessel is traveling, and to ballast the vessel to a relatively deep draft level in a lifting mode so that the widening level is below water level, at least when the vessel is substantially stationary and the crane is in its lifting position.

Growing community of inventors

Rockanje, Netherlands

Willem Jacob Van Der Velde