A ship's hull

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 1/40 (2006.01) B63B 1/04 (2006.01) B63B 43/04 (2006.01)

Patent

CA 2172835

The invention relates to a ship's hull comprising a first hull part (1) arranged as a hard-chine hull disposed on a second hull part (2) in the shape of a super-slender float. Due to the fact that in service conditions only the aft half of the first hull part intersects the water surface two separate bow waves develop. By appropriate selection of hull widths and by disposition of the first hull part (1) on the second hull part (2), the bow waves are in phase opposition. This reduces the wave-induced drag of the ship's hull considerably, especially near the critical speed.

L'invention se rapporte à une coque de bateau comprenant une première partie coque (1), agencée sous forme d'une coque à bouchain vif, disposée sur une seconde partie coque (2) qui se présente sous forme d'un flotteur extrêmement mince. Dans la mesure où en cours d'utilisation, seule la moitié arrière de la première partie coque entrecoupe la surface de l'eau, deux lames de proue séparées se développent. La sélection appropriée des largeurs de coque et le positionnement de la première partie coque (1) sur la seconde partie coque (2) permettent de maintenir les lames de proue en opposition de phase. Ceci réduit considérablement la traînée due aux vagues agissant sur la coque, en particulier lorsqu'on approche de la vitesse critique.

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