This disclosure describes hybrid chine hulls, marine vessels including hybrid chine hulls and methods of manufacturing and using hybrid chine hulls. An exemplary hybrid chine hull includes a keel, a single chine section, and a double chine section distinct from the single chine section with respect to a longitudinal direction of the keel and positioned aft of the single chine section.

A watercraft suitable for fishing has a rotomolded deck and hull. The deck includes a cockpit with substantially vertical sidewalls, a rear wall, a pedaling installation, and a flat floor between the sidewalls extending from the rear wall to the pedaling installation in the cockpit. The hull includes a depression between lateral protrusions amidships and a stern with a rounded cross section so that the combination of the lateral protrusions and rounded stern cross section allow the watercraft to track straight on water and for the stern to move laterally when the watercraft is turned on a body of water. The watercraft may also include a seat movably mounted onto spaced apart grooves installed on the flat floor of the cockpit that extend from a rear position near the rear wall to a forward position near the pedaling installation.

A watercraft suitable for fishing has a rotomolded deck and hull. The deck includes a cockpit with substantially vertical sidewalls, a rear wall, a pedaling installation, and a flat floor between the sidewalls extending from the rear wall to the pedaling installation in the cockpit. The hull includes a depression between lateral protrusions amidships and a stern with a rounded cross section so that the combination of the lateral protrusions and rounded stern cross section allow the watercraft to track straight on water and for the stern to move laterally when the watercraft is turned on a body of water. The watercraft may also include a seat movably mounted onto spaced apart grooves installed on the flat floor of the cockpit that extend from a rear position near the rear wall to a forward position near the pedaling installation.

This disclosure describes hybrid chine hulls, marine vessels including hybrid chine hulls and methods of manufacturing and using hybrid chine hulls. An exemplary hybrid chine hull includes a keel, a single chine section, and a double chine section distinct from the single chine section with respect to a longitudinal direction of the keel and positioned aft of the single chine section.

This disclosure describes hybrid chine hulls, marine vessels including hybrid chine hulls and methods of manufacturing and using hybrid chine hulls. An exemplary hybrid chine hull includes a keel, a single chine section, and a double chine section distinct from the single chine section with respect to a longitudinal direction of the keel and positioned aft of the single chine section.

This invention relates to a pipe-like appendage for a sharp-edged pontoon of an offshore vessel, a pontoon structure comprising the pipe-like appendage and a method of converting a sharp-edged pontoon into a pontoon comprising at least one rounded-edge.

The invention is a watercraft with at least one hull which creates hydrodynamic lift by using narrowing concave channels (1) on the underside of the said at least one hull where propulsion (3) is placed such that the said propulsion draws water through the said narrowing concave channels (1).

The invention is a watercraft with at least one hull which creates hydrodynamic lift by using narrowing concave channels (1) on the underside of the said at least one hull where propulsion (3) is placed such that the said propulsion draws water through the said narrowing concave channels (1).

This relates to vessels in general, but in particular to vessel designed to be exposed from low to medium to high waves. Both for comfort of persons, animals or fragile goods, steady sailing is preferred, without causing the waves slamming in on the vessel hull or excessive pitching of the vessel. This is also the case for service and supply vessels performing operations in relation to offshore or subsea installations. To obtain a solution to the aforementioned issues the present invention provides a vessel, wherein a stern of the vessel extend below a design waterline (Tdwl), and wherein opposite side faces of the stern, when seen in an opposite direction of the vessels primary sailing direction, form an acute angle under and above the design waterline (Tdwl) to decrease the vessels displacement in the rear end and are adjoined along at a line of symmetry forming a stern centerline.

This relates to vessels in general, but in particular to vessel designed to be exposed from low to medium to high waves. Both for comfort of persons, animals or fragile goods, steady sailing is preferred, without causing the waves slamming in on the vessel hull or excessive pitching of the vessel. This is also the case for service and supply vessels performing operations in relation to offshore or subsea installations. To obtain a solution to the aforementioned issues the present invention provides a vessel, wherein a stern of the vessel extend below a design waterline (Tdwl), and wherein opposite side faces of the stern, when seen in an opposite direction of the vessels primary sailing direction, form an acute angle under and above the design waterline (Tdwl) to decrease the vessels displacement in the rear end and are adjoined along at a line of symmetry forming a stern centerline.