Abstract: Disclosed is a boat including a bottom bordered radially externally by a wall which includes an inflatable and foldable front wall, an inflatable and foldable side wall, and a rear wall. The boat includes at least one inflatable and foldable longitudinal support parallel to the side wall, the support including an inflatable tube and a foldable upper connection which connects the tube to the upper part of the side wall, the upper connection extending longitudinally along the side wall and forming during use a surface P capable of receiving an element.

Abstract: Disclosed is a boat including a flexible bottom bordered radially towards the outside by a wall which includes an inflatable and flexible front wall, an inflatable and flexible lateral wall, and a rear wall. At least one part of at least one of the lateral wall and of the front wall is constituted by a first inflatable element configured as a panel having two parallel planar faces, a second inflatable element of which the cross section is in the form of a D with a planar portion, and a flexible assembly device, the second element being situated radially towards the outside of the boat with respect to the first element, the assembly device maintaining the planar portion of the second element in contact with one of the planar faces of the first element.

Abstract: The device includes a sling with four flexible support strands, including a pair of rear strands, each of which is attached by a bottom end to one of two lifting points provided in the lateral end portions of the transom stern, and a top end of which is linked to at least one attachment member, for engaging with a hook suspended beneath a helicopter, and two strands, each forming a loop capable of passing around the outer lower contours of the two lateral floats and beneath the keel of the boat, and of which each of the two ends is attached to the attachment member, one of the two looped strands, referred to as the “middle” strand, surrounding the boat at the central portion of the latter, and the other looped strand, referred to as the “front” strand, surrounding the boat at the bow of the boat.

Abstract: Disclosed is a vessel with two watertight flaps attached in a tensioned state on the two sides of the longitudinal keel, each being under one of the two rear side portions of the V-shaped hull, the outer side edge of each flap being connected under the shell covering the bottom compartment on the same side, and the bottom side edge being connected to the bottom along a line which is angled from the rear to the front and angled toward the lower compartment, with a flap width tapering from the tensioned, free rear edge between the ends at the transom, toward a front portion connected to the bottom and/or to the shell at the connection between the upper and lower compartments, defining, with the latter and the bottom, a channel converging from front to rear and angled toward the rear end of the edge of the V-shaped craft hull.

Abstract: The invention relates to a vessel which includes two watertight flaps (13) attached in a tensioned state on the two sides of the longitudinal keel (7), each being under one of the two rear side portions of the V-shaped hull, the outer side edge (16) of each flap being connected under the shell (11) covering the bottom compartment (9) on the same side, and the bottom side edge (17) being connected to the bottom (6) along a line which is angled from the rear to the front and angled toward the lower compartment (9), with a flap width that gradually tapers from the tensioned, free rear edge (14) thereof between the ends thereof at the transom (4), toward a front portion connected to the bottom (6) and/or to the shell (11) at the connection between the upper (8) and lower (9) compartments, in order to define, with the latter and the bottom (6), a channel converging from the front to the rear and angled toward the rear end of the edge of the V-shaped hull of the craft.

Abstract: A craft includes a rigid hull (1) that consists of a V-shaped bottom (5) and a bridge (4) on which a load can rest. The hull includes plating consisting of compartmentalized pneumatic floats (2), the rear compartments (32) of which are combined with an inflation and deflation system so as to vary the buoyancy of the craft. The craft also includes a submergible hull (1), the central cavity (9) of which is formed between the bottom (5) and the bridge (4) and is open at the rear so as to be automatically filled or emptied, the central cavity (9) containing at least one bag (10) that is combined with an inflation and deflation system enabling the buoyancy to be varied and consequently the level of immersion of the stern (7) to be changed as needed.

Abstract: A semi-rigid boat, includes a rigid hull (11) provided, at the bridge thereof (6), with two types of holders for the inflatable tube(s): a gutter-shaped holder for receiving, at the bow and/or at the stern, a section (13, 14) of tube (12) having a circular cross-section; and a planking wall-shaped holder (16) that extends between the bow and the stern, which is provided so as to engage with an inflatable section-shaped structure (15) having a D-shaped cross-section that extends longitudinally between the sections (13, 14). The section (15) of inflatable tube having a D-shaped cross-section is attached to the bottom portion and to the top portion of the planking wall (16).

Abstract: A semi-rigid boat, includes a rigid hull (11) provided, at the bridge thereof (6), with two types of holders for the inflatable tube(s): a gutter-shaped holder for receiving, at the bow and/or at the stern, a section (13, 14) of tube (12) having a circular cross-section; and a planking wall-shaped holder (16) that extends between the bow and the stern, which is provided so as to engage with an inflatable section-shaped structure (15) having a D-shaped cross-section that extends longitudinally between the sections (13, 14). The section (15) of inflatable tube having a D-shaped cross-section is attached to the bottom portion and to the top portion of the planking wall (16).