External registration letters and numbers as displayed on the hull.

Eligible costs related to the hydrodynamic of the hull of the vessel

The anode is pushed out through the hole in the hull of the vessel.

Said skirt (2), in case of said vessel shell damage, can be quickly unfolded thereby forming an enclosure surrounding the vessel.

The gas-discharging chamber is attached to the ship's hull so as to cover the outside of a gas supply hole penetrating the outer plate of the ship's hull.

The configuration can reduce the weight of the ship body.

The ship blows air into the water to reduce the frictional resistance between the hull of the ship and the water and prevents bubbles from being entrained in a propeller (16) of the ship while the strength of the hull is maintained.

The minimal roll of the vessel in the turns allows for an even and maximum distance between the surface and the entire hull of the vessel.

An air curtain extending to the hull of the ship is present around this opening, through which it is not possible for spray to escape between the enclosure and the ship's hull.

The fine bubbles flow downstream along and close to the hull of the ship.

External registration letters and numbers as displayed on the side hull.

The apparatus includes a filtering device adapted to couple to the marine vessel over a water intake port in the hull of the vessel.

The foil can be located entirely behind the vessel, or partly below the aft hull portion of the vessel with no more than about half the foil being forward of the location (21) where the hull leaves the water.

A number of components can be releasably attached to the hull of the watercraft to provide a multi-functional versatile hull configuration.

Within the vessel hull, ballast water serves multiple purposes.