Winged hull for a watercraft

Abstract

A hull for a boat, for example a sailboat, has a sharply angled front or bow with a curved center crest line providing a entry into the water during forward motion. Sides of the bow are concave. The main body of the hull is shaped as a semicircle in transverse cross section. The upper edge of the hull has a flare that extends laterally outward to form wings along both sides of the hull. The wings begin adjacent the front or bow and gradually increase in the extent of their lateral extension at a mid-position the hull and adjacent the stern. The stern has an angled end extending rearward at the bottom of the hull. A step is provided at the stern. The deck extends from the upper edge of the hull to the edges of the cockpit. The cockpit has curved inside surfaces and a center beam extending along the center of the boat, the center beam having sloping surfaces. An open transom permits water to flow from the cockpit.

1 . A hull for a boat, comprising: 
 an exterior hull surface of the hull having a shape that is symmetrical about a longitudinal center line;    a bow portion of said exterior hull surface having a water entry edge, said water entry edge defining a curve having a horizontal and a vertical component, said bow portion including sidewalls having a concave shape on either side of said water entry edge;    a main body portion of said exterior hull surface connected to said bow portion, said main body portion having a semicircular shape in transverse cross section; an upper edge of said exterior hull surface having a deck portion connected thereto; and    first and second wings of said exterior hull surface extending laterally from opposite sides of said hull below said upper edge, said first and second wings having a greater extent of lateral extension at a mid-portion of said hull than at said bow, said first and second wings being structured to permit water to flow against the wings while under normal sailing operation.    
   
   
       2 . A hull as claimed in  claim 1 , wherein said first and second wings taper from a full lateral extension at sides of a midpoint of said hull to a slight lateral extension adjacent said bow.  
   
   
       3 . A hull as claimed in  claim 1 , further comprising: 
 a stern of said exterior hull surface defining a rearward extension of said exterior hull surface at a lower portion thereof and having an endwardly tapering sidewall between said upper edge and said lower portion.    
   
   
       4 . A hull as claimed in  claim 3 , wherein said stern includes a step, said step including a horizontal step surface extending transversely across stern and a vertical surface below said step surface defining a rearmost surface of said hull.  
   
   
       5 . A hull as claimed in  claim 1 , further comprising: 
 a stern of said exterior hull surface defining a rearward extension of said exterior hull surface, said rearward extension being tapered to said longitudinal center line and rising to above a water line of the hull.    
   
   
       6 . A hull as claimed in  claim 1 , further comprising: 
 a cockpit formed in said deck, said cockpit defining interior side surfaces extending from said deck, said interior side surfaces being curved inwardly and being adapted for a crew member to sit leaning against said interior side surfaces; and a center beam extending longitudinally of said hull in said cockpit.    
   
   
       7 . A hull as claimed in  claim 6 , wherein said deck includes side deck portions laterally of said cockpit, said side deck portions overlaying said wings, said side deck portions being adapted for a crew member to sit upon.  
   
   
       8 . A hull as claimed in  claim 1 , further comprising: 
 foam spheres in an interior space between said exterior hull surface and said deck; and    foam material filled between said foam spheres, said foam material bonding said foam spheres in place.    
   
   
       9 . A hull as claimed in  claim 8 , wherein said foam spheres are of polystyrene.  
   
   
       10 . A hull as claimed in  claim 1 , wherein said hull is a sailboat hull.  
   
   
       11 . A hull as claimed in  claim 1 , wherein said hull is a powerboat hull.  
   
   
       12 . A hull for a sailboat, comprising: 
 an exterior hull surface of the hull having a shape that is symmetrical about a longitudinal center line;    a bow portion of said exterior hull surface having a water entry edge, said water entry edge defining a curve having a horizontal and a vertical component, said bow portion including sidewalls having a concave shape on either side of said water entry edge;    a main body portion of said exterior hull surface connected to said bow portion, said main body portion having a semicircular shape in transverse cross section;    an upper edge of said exterior hull surface having a deck portion connected thereto; and    first and second wings of said exterior hull surface extending laterally from opposite sides of said hull below said upper edge, said first and second wings having a greater extent of lateral extension at a mid-portion of said hull than at said bow, said wings extend from both sides of said hull, said wings tapering from a full lateral extension at sides of a midpoint of said hull to a slight lateral extension adjacent said bow;    a stern of said exterior hull surface defining a rearward extension of said exterior hull surface at a lower portion thereof and having an inwardly tapering sidewall between said upper edge and said lower portion, said stern including a step, said step having a horizontal step surface extending transversely across stern and a vertical surface below said step surface defining a rearmost surface of said hull;    a cockpit formed in said deck, said cockpit defining interior side surfaces extending from said deck, said interior side surfaces being curved inwardly and being adapted for a crew member to sit leaning against said interior side surfaces;    a center beam extending longitudinally of said hull in said cockpit;    said deck including side deck portions laterally of said cockpit;    said side deck portions overlaying said wings, said side deck portions being adapted for a crew member to side upon;    foam spheres in an interior space between said exterior hull surface and said deck; and    foam material filled between said foam spheres.    
   
   
       13 . A hull for a boat, comprising: 
 an outer hull of fiberglass;    an inner hull of fiberglass, said inner hull being mounted in and connected to said outer hull to define an interior space there between;    foam spheres in said interior space; and    a foam material between said foam spheres in said interior space, said foam material bonding said foam spheres in place.    
   
   
       14 . A hull as claimed in  claim 13 , wherein said hull is a sailboat hull.  
   
   
       15 . A hull as claimed in  claim 13 , wherein said hull is a powerboat hull.  
   
   
       16 . A hull as claimed in  claim 13 , wherein said inner hull includes a deck and a cockpit.  
   
   
       17 . A hull for a boat, comprising: an exterior hull surface of the hull having a shape that is symmetrical about a longitudinal center line; 
 a bow portion of said exterior hull surface having a water entry edge, said water entry edge including a front edge defining a substantially straight line that is substantially perpendicular to a water surface as said hull is floating on the water, said bow portion including sidewalls having a concave shape on either side of said water entry edge;    a main body portion of said exterior hull surface connected to said bow portion, said main body portion having a semicircular shape in transverse cross section;    an upper edge of said exterior hull surface having a deck portion connected thereto; and    first and second wings of said exterior hull surface extending laterally from opposite sides of said hull below said upper edge, said first and second wings having a greater extent of lateral extension at a mid-portion of said hull than at said bow.    
   
   
       18 . A hull for a boat, comprising: 
 an outer hull portion having a bow and stern;    a cockpit in said outer hull portion, said cockpit having a shape in transverse cross-section generally in a shape of a W, said W shape extending generally from said stern to at least crew seating area of said cockpit; and    a deck extending from outer edges of said cockpit to upper edges of said outer hull.    
   
   
       19 . A hull for a boat as claimed in  claim 18 , wherein said cockpit has a generally elliptical shape when viewed from above, said W shaped being defined in part by a beam extending along a central axis of said parabolic shape.  
   
   
       20 . A hull for a boat as claimed in  claim 18 , wherein said outer hull portion includes wings extending laterally from both sides of said hull portion, said wings gradually increasing in extent of extension from said sides beginning with a minimal lateral extension adjacent said bow and a greater extension at a position midway between said bow and said stern, said deck defining seating surfaces above said wings.