Apparatus for providing a displacement hull having auxiliary planing surfaces

Claim 1

A BOAT BULL CUMPRISING A BASIC DISPLACEMENT, NON-PLANING SURFACE EXTENDING FROM BOW TO STERN, A FIRST AUXILIARY PLANING SURFACE PERMANENTLY AND IMMOVEABLY SECURED TO SAID DISPLACEMENT SURFACE ON ONE SIDE OF THE KEEL OF SAID HULL AND EXTENDING AFT OF THE MIDSHIPS SECTION OF SAID HULL AND BELOW SAID DISPLACE MENT SURFACE, A SECOND AUXILLARY PLANNING SURFACE SPACED APART FROM SAID FIRST AUXILLIARY SURFACE AND PERMANENTLY AND IMMOVABLY SECURED TO SAID DISPLCEMENT SURFACE ON THE OTHER SIDE OF SAID KEEL OF SAID HULL EXTENDING AFT OF THE MIDSHIPS SECTION OF SAID HULL SUBSTANTIALLY THE SAME DISTANCE AS SAID FIRST AUXILIARY PLANING SURFACE AND BELOW SAID DISPLACEMENT SURFACE, THE FORWARD AREA OF EACH OF SAID PLANNING SURFACES JOINING WITH SAID DISPLACEMENT SURFACE SO AS TO FORM SMOTH CONTINUOUS SURFACE, A STEP BETWEEN THE FORWARD AREAS OF SAID FIRST AND SECOND AUXILARY PLANNING SURFACES, AND FAIRING MEANS JOINING SAID PLANING SURFACES AND SAID DISPLACEMENT SURFACE FOR PROVIDING STEAMLIMED SURFACES THEREBETWEEN.