Craft for embarking/landing on unequipped shorelines

Abstract

Craft for embarking/landing loads, particularly personnel and/or vehicles, on unequipped shorelines, of the catamaran type, comprising: a mobile platform which is provided between two lateral hulls of the said catamaran, this platform being produced in the form of a watertight box, the upper part of which supports the loads by forming a running surface, and a deployable ramp being provided at each end of the said platform, the latter and the said ramps in the deployed position constituting a loading corridor of uniform width equal to the spacing between the two hulls, and mechanisms to make it possible to vary the relative position of the mobile platform and of the hulls of the catamaran so that the craft floats either via the catamaran hulls alone or via the entire area of the said platform and of the hulls of the said catamaran.

1 . Craft for embarking/landing loads, particularly personnel and/or vehicles, on unequipped shorelines, of the catamaran type, comprising: 
 a mobile platform which is provided between two lateral hulls of the said catamaran, this platform being produced in the form of a watertight box, the upper part of which supports the loads by forming a running surface, and a deployable ramp being provided at each end of the said platform, the latter and the said ramps in the deployed position constituting a loading corridor of uniform width equal to the spacing between the two hulls, and    mechanisms to make it possible to vary the relative position of the mobile platform and of the hulls of the catamaran so that the craft floats either via the catamaran hulls alone or via the entire area of the said platform and of the hulls of the said catamaran.    
     
     
         2 . Craft according to  claim 1 , wherein the two lateral hulls of the said catamaran are connected at the upper part and at each of their respective ends by beams and 
 lifting means are provided for allowing the said platform to be brought respectively into the raised or transit position and into the lowered or embarking/landing position in which the said platform provides additional buoyancy to allow the draught of the craft to be reduced.    
     
     
         3 . Craft according to  claim 1 , wherein the hulls are also connected at the bottom part by wing-shaped crossmembers, the box constituting the said mobile platform being produced in such a way that in the lowered position the said crossmembers nest into the underside of the said box.  
     
     
         4 . Craft according to  claim 3 , wherein the said crossmembers are fitted with mobile profiled flaps.