Abstract: This invention relates to outboard motors and inboard-outboard motors and more specifically to the underwater exhaust systems built into both of these types of marine propulsion. The object of this invention is to provide a method of and apparatus for selective rerouting the underwater exhaust through a muffled above water outlet while effectively blocking the underwater exhaust emanations.

Abstract: A fishing boat for use with a pair of electrically powered fishing motors wherein the boat hull has double end bottom running surfaces and a bottom pod extending below the running surfaces between the bow and the stern of the hull along the center line of the hull, the pod being shaped to receive an electrical power source for the motors and having a longitudinal dimension greater than the transverse dimension of the pod and each of the dimensions being less than the corresponding dimensions of the boat hull. The boat hull has a first well molded into the bottom thereof between the bow and the adjacent end of the pod along the center line of the hull and the boat hull has a second well molded into the bottom thereof between the stern and the other end of the pod along the center line of the hull. The boat also includes a removably mounted electrically powered fishing motor in each of the first and second wells in the bottom of the boat hull.

Abstract: A power boat hull having sides and a bottom formed of a series of vertically stepped panels disposed symmetrically on either side of the hull center line. The series of panels on either side of the hull center line include an inboard panel, a center panel and an outboard panel. Vertical risers join the adjacent edges of the center and outboard panels and extend substantially parallel to the hull center line. Vertical risers join the adjacent edges of the center and inboard panels and extend on opposite sides of the hull center line from the stern to a point of intersection on the center line adjacent the bow. The panels are angled upwardly from the horizontal, outwardly of the hull center line with such angularities decreasing between successive panels in the outboard direction at all stations along the length of the hull except at the stern, the angularities of each inboard and center panels increasing from the stern toward the bow while the angularities of the outboard panels remain constant.