The Vice President of the United States is the ex officio President of the Senate, with authority to preside over the Senate's sessions, although he can vote only to break a tie. For decades the task of presiding over Senate sessions was one of the vice president's principal duties.
However, because they ride atop the water, rather than cutting through it as other hulls do, flat-bottom boats are usually limited in the size of their motors. The flat surface may also give a spine-jarring ride in anything less than calm weather.
There are two basic types of boat hullsâdisplacement and planing. Displacement Hulls Boats with displacement hulls move through the water by pushing the water aside and are designed to cut through the water with very little propulsion. 1  If you lower a boat into the water, some of the water moves out of the way to adjust for the boat. 2  Boats with displacement hulls are limited to slower speeds.