Boat construction incorporating flotation means

A boat comprising a hull means including a bottom portion and upstanding wall portions, said hull means having an inner surface, an outer surface, longitudinally extending, laterally spaced sides, sponson means along at least a portion of each side of said hull means, said sponson means including upper and lower ends, inner and outer portions and defining an enclosed flotation chamber, flotation means carried within said flotation chamber, said sponson means being defined by a first upwardly extending member having upper and lower end portions, a second upwardly extending member having upper and lower end portions, the major extent of said second member being spaced laterally from the major extent of said first member, and a laterally directed flange at said upper end portion of said second member extending over said upper end portion of said first member, said upper end portion of said second member terminating in a second member lip means, and connecting means resiliently engaging said upper end portion of said first member with said second member lip means to secure said flotation means within said flotation chamber, said upper end portion of said first member terminating in a first member lip means including an outwardly and downwardly reverted first lip member, said second member lip means including an outwardly and upwardly reverted second lip member, and said connecting means comprisess an upper inwardly and downwardly reverted third lip member, a lower inwardly and upwardly reverted fourth lip member, and a connecting portion, said third lip member being engaged under said first lip member to secure said first and second members to each other under tension with said flotation means contained within said flotation chamber, and wherein said connecting portion of said connecting means includes a longitudinally extending pocket at said upper end of said outer portion of said sponson means, said pocket defining a portion of said flotation chamber.