Patent ID: 7424859
Filing Date: 2008-09-16
Classification: B63B,B63H

Abstract:
1. A shallow draft boat for alternatively operating at slower speeds in shallow water or at higher speeds in deep water, said shallow draft boat comprising: a hull having a bow and a transom aft, said hull having a generally flat bottom; an outboard motor mounted on said transom, said outboard motor having a raised operating condition and a lowered operating condition; a tunnel in said generally flat bottom starting near amidship and extending aft through said transom along a centerline of said shallow draft boat, said tunnel having a generally flat top with a S curve shape therein; a plenum above a forward end of said tunnel connecting via an upper opening to atmosphere; proliferation of angled openings from said plenum through said forward end of said tunnel to said shallow water or deep water; a plug for plugging said upper opening to prevent air flow therethrough; during operation of said shallow draft boat (a) in said shallow water, said outboard motor is in said raised operating condition and said plug plugging said upper opening and (b) in said deep water, said outboard motor is in said lowered operating condition and said plug is removed from said upper opening.