Boat hull

Abstract

A boat hull is described comprising at least one rigid structure and one or more tubular members fixable to the rigid structure at the perimeter thereof. The tubular members are sized and shaped such as to only partially cover the hull perimeter.

1 . A boat hull comprising at least one rigid structure and one or more tubular members fixable to said rigid structure at the perimeter thereof, characterized in that said one or more tubular members are shaped and sized such as to only partially cover the hull perimeter.  
   
   
       2 . The hull according to  claim 1 , wherein at least two distinct tubular members fixed to the respective flanks are provided, each of said tubular members having a shorter length than said flanks.  
   
   
       3 . The hull according to  claim 1 , wherein said tubular members are mounted at the stern portion.  
   
   
       4 . The hull according to  claim 1 , wherein said tubular members are tapered towards the bow.  
   
   
       5 . The hull according to  claim 1 , wherein said rigid structure comprises one or more hydrodynamically lifting surfaces at the bow portion.  
   
   
       6 . The hull according to  claim 1 , wherein each of said tubular members is fixed at a recessed housing which is provided in said rigid structure.  
   
   
       7 . The hull according to  claim 1 , wherein means are provided to removably fix said tubular members to said rigid structure.  
   
   
       8 . The hull according to  claim 7 , wherein said means for removably fixing comprise one or more sliding rods arranged on the outer surface of each of said tubular members.  
   
   
       9 . The hull according to  claim 1 , wherein each of said tubular members comprises an inflatable casing made of a flexible material.  
   
   
       10 . The hull according to  claim 9 , wherein said inflatable casing comprises one or more separate airtight chambers.  
   
   
       11 . The hull according to  claim 10 , wherein each of said separate airtight chambers comprises at least one deflating valve.  
   
   
       12 . The hull according to  claim 9 , wherein one single inflation duct is provided for said separate airtight chambers.  
   
   
       13 . The hull according to  claim 1 , wherein means are provided to retract said inflatable casing into the corresponding recessed housing when said casing is in a deflated condition.