Inverted v-bottom boats

Claim 1

A HULL FOR SPEED BOATS, COMPRISING SUBSTANTIALLY PARALLEL SIDES, A TRANSOM, A BOTTOM; THE LOWER EDGES OF THE SIDES DEFINING CHINE LINES AND THE UPPER EDGES OF THE SIDES DEFINING THE GUNWALES; AN AXIALLY DISPOSED KEEL DISPOSED UPON THE BOTTOM, THE LOWER EDGE OF THE KEEL DEFINING THE KEEL LINE; SAID KEEL EXTENDING FROM A POINT ADJACENT THE GUNWALES AT THE BOW AND PASSING BELOW THE CHINE LINE AT A POINT APPROXIMATELY TWO-THIRDS THE LENGTH OF THE HULL FROM THE BOW AND CONTINUING BELOW THE CHINE LINE FROM SAID PASSING POINT TO THE TRANSOM, WHEREBY THE HULL WILL HAVE A HOLLOW V-BOTTOM FROM THE BOW GRADUALLY DIMINISHING IN DEPTH TO THE PASSING POINT WHERE THE BOTTOM IS SUBSTANTIALLY FLAT, AND WILL HAVE A CONVEX V-BOTTOM FROM SAID PASSING POINT GRADUALLY INCREASING IN DEPTH TO THE TRANSOM; AND A TRANSVERSE STEP IN THE HULL ADJACENT SAID PASSING POINT; WHEREBY AT HIGH SPEEDS THE HULL WILL HAVE A SUBSTANTIALLY THREE-POINT SUSPENSION BEARING ON THE CHINES FORWARD AND ON THE KEEL AFT OF THE TRANSVERSE STEP.